Tekxon Technology AWG2021 manuel d'utilisation

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Table des matières du manuel d’utilisation

  • Page 1

    User Manual A WG2021 Arbitrary W aveform Generator 070-9097-50 www .tektronix.com[...]

  • Page 2

    Copyright  T ektronix Japan, Ltd. All rights reserved. Copyright  T ektronix, Inc. All rights reserved. T ektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes that in all previously published material. Specifications and price change privileges reserved. T ektronix Japan, Lt[...]

  • Page 3

      T ektronix warrants that this product will be free from defects in materials and workmanship for a period of one (1) year from the date of shipment. If any such product proves defective during this warranty period, T ektronix, at its option, either will repair the defective product without charge for parts and labor , or w[...]

  • Page 4

    [...]

  • Page 5

    A WG2021 User Manual i T able of Contents General Safety Summary xxi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Preface xxiii . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Getting Started Overview 1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

  • Page 6

    T able of Contents ii A WG2021 User Manual Example 4: Loading and Saving Files 2-68 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Saving Files 2-68 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Loading Files 2-71 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 7

    T able of Contents A WG2021 User Manual  Editing W aveform Data in T able Display 3-135 . . . . . . . . . . . . . . . . . . . . . . . . . . . Cut, Copy , and Paste Processing Function 3-136 . . . . . . . . . . . . . . . . . . . . . . . . . . Equation Editor 3-137 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 8

    T able of Contents  A WG2021 User Manual Selecting the Display Format for the SETUP Menu 3-216 . . . . . . . . . . . . . . . . . . . . . . Selecting Output Parameter Fields 3-217 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Numeric Input 3-217 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 9

    T able of Contents A WG2021 User Manual v Other Settings and Displays 3-279 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Setting the Display 3-279 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Settings for Hard Copy Output 3-286 . . . . . . . . . . . . . . . . . . . . . [...]

  • Page 10

    T able of Contents  A WG2021 User Manual Performance T ests C-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Prerequisites C-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Related Information C-6 . . . . . . . . . . . . . . . . . . . . . . [...]

  • Page 11

    T able of Contents A WG2021 User Manual  Pattern Codes F-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Logical Operation F-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FFT (Fast Fourier T ransforms) F-16 . . . . . . . . . . .[...]

  • Page 12

    T able of Contents viii A WG2021 User Manual List of Figures Figure 1-1: Rear Panel Contr ols Used In Start Up 1-5 . . . . . . . . . . . . . . . Figure 1-2: ON/STBY Switch 1-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 2-1: Fr ont Panel Overall V iew 2-3 . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 2-2: F[...]

  • Page 13

    T able of Contents A WG2021 User Manual  Figure 2-32: Setting the Edit Range 2-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 2-33: Drawing a W aveform Using the Point Draw Function 2-46 . Figure 2-34: Connecting the Points 2-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 2-35: Cr eating a Sine W ave 2-48 .[...]

  • Page 14

    T able of Contents  A WG2021 User Manual Figure 3-1: Initial EDIT Menu Structur e 3-4 . . . . . . . . . . . . . . . . . . . . . . . Figure 3-2: Display of the Initial Menu 3-6 . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3-3: Menu Displayed When Rename is Selected 3-9 . . . . . . . . . . . Figure 3-4: Menu Displayed When Delete is Se[...]

  • Page 15

    T able of Contents A WG2021 User Manual  Figure 3-38: List of Files for Insertion 3-62 . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3-39: File W aveform Display 3-62 . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3-40: Inserting W aveforms 3-63 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3-41: W [...]

  • Page 16

    T able of Contents  A WG2021 User Manual Figure 3-74: V ertical Zoom 3-95 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3-75: Timing Display 3-96 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3-76: W aveform Editor Timing Display Menu Structure 3-97 . . . . Figure 3-77: Timing Dis[...]

  • Page 17

    T able of Contents A WG2021 User Manual  Figure 3-1 10: Equation Using norm( 3-151 . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3-1 1 1: Equation Using max( and min( 3-152 . . . . . . . . . . . . . . . . . . . . Figure 3-1 12: Equation Using rnd( 3-153 . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3-1 13[...]

  • Page 18

    T able of Contents  A WG2021 User Manual Figure 3-146: Magnified Signal Display 3-205 . . . . . . . . . . . . . . . . . . . . . . . . Figure 3-147: Low Pass Filter 3-206 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3-148: High Pass Filter 3-206 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure[...]

  • Page 19

    T able of Contents A WG2021 User Manual  Figure 3-178: Format... Sub-Menu Display 3-265 . . . . . . . . . . . . . . . . . . . . . Figure 3-179: Write Protect T ab on a Floppy Disk 3-268 . . . . . . . . . . . . . . . Figure 3-180: File and Dir ectory Display in the Root Directory 3-270 . . . . . Figure 3-181: Dir ectory Name Input 3-271 . . . [...]

  • Page 20

    T able of Contents  A WG2021 User Manual Figure A-1 1: The Shape of the Output Connector A-10 . . . . . . . . . . . . . . . . Figure A-12: Generation of Excess Output A-1 1 . . . . . . . . . . . . . . . . . . . . . . Figure A-13: Output Cir cuit A-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure A-14: Output W [...]

  • Page 21

    T able of Contents A WG2021 User Manual  Figure D-6: Nyquist Pulse Formula and W aveform D-9 . . . . . . . . . . . . . . Figure D-7: Linear Fr equency Sweep Formula and W aveform D-10 . . . . . Figure D-8: Log Fr equency Sweep Formula and W aveform D-1 1 . . . . . . . Figure D-9: Amplitude Modulation Formula and W aveform D-12 . . . . .[...]

  • Page 22

    T able of Contents  A WG2021 User Manual Figure E-14: Repr esentative Filter Characteristics E-16 . . . . . . . . . . . . . . . Figure E-15: Time Differ ence Between Signals and SYNC Signals E-17 . . Figure E-16: Attenuator Configuration E-18 . . . . . . . . . . . . . . . . . . . . . . . . Figure E-17: Offset Cir cuit E-18 . . . . . [...]

  • Page 23

    T able of Contents A WG2021 User Manual xix List of T ables T able 1-1: Power Cord Identification 1-6 . . . . . . . . . . . . . . . . . . . . . . . . . . T able 2-1: Numeric V alue Input Example 1 2-18 . . . . . . . . . . . . . . . . . . . . . T able 2-2: Numeric V alue Input Example 2 2-19 . . . . . . . . . . . . . . . . . . . . . T able 3-1: Menu[...]

  • Page 24

    T able of Contents  A WG2021 User Manual T able B-1: Electrical Characteristics B-1 . . . . . . . . . . . . . . . . . . . . . . . . . . T able B-2: Mechanical Characteristics B-5 . . . . . . . . . . . . . . . . . . . . . . . . . T able B-3: Electrical Characteristics B-6 . . . . . . . . . . . . . . . . . . . . . . . . . . T able B-4: Environm[...]

  • Page 25

    A WG2021 User Manual xxi General Safety Summary Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it. Only qualified personnel should perform service pr ocedur es. Injury Precautions T o avoid fire hazard, use only the power cord specified for this product. T o avoid electric sho[...]

  • Page 26

    General Safety Summary xxii A WG2021 User Manual If you suspect there is damage to this product, have it inspected by qualified service personnel. Safety T erms and Symbols These terms may appear in this manual:   W arning statements identify conditions or practices that could r esult in injury or loss of life. ?[...]

  • Page 27

    A WG2021 User Manual xxiii Preface This is the User Manual for the A WG2021 250 MHz Arbitrary W aveform Generator . Getting Started covers the features of the A WG2021, initial inspection, and start up. In particular , the start up section covers the procedures required prior to turning on the unit and points that require special care or caution. O[...]

  • Page 28

    Preface xxiv A WG2021 User Manual  When menu items are displayed in the manual, the menu type, either bottom menu, side menu, or sub-menu, is distinguished and indicated as shown below .        Consecutive button operations are expressed as shown below . Setti[...]

  • Page 29

    A WG2021 User Manual 1 Ć1 Overview This section describes the features of the A WG2021, initial inspection, and start up. Product Description The A WG2021 is a portable arbitrary waveform generator capable of generating both arbitrary and standard function waveforms. This arbitrary waveform generator provides these major features:  custom wavef[...]

  • Page 30

    Overview 1 Ć2 A WG2021 User Manual An FFT editor and a convolution waveform editor are provided with A WG2021 units that include Option 09. These editors support frequency domain editing and waveform convolution calculations. As a function generator , the A WG2021 can generate sine waves, triangle waves, square waves, ramp waves, and pulse waves. [...]

  • Page 31

    A WG2021 User Manual 1 Ć3 Start Up This section describes the procedures required prior to turning on the A WG2021. Installation Before you begin, refer to the Safety Summary at the front of this manual for power source, grounding, and other safety information. Before you use the instrument, ensure that it is properly installed and powered on. T o[...]

  • Page 32

    Start Up 1 Ć4 A WG2021 User Manual 3. Remove the fuse from the fuse holder on the rear panel and check the fuse. T o remove the fuse, turn it counter-clock-wise with a screwdriver while pushing it in. There are two types of fuses provided. Here is the fuse type and rating. Fuse Fuse Part Number Fuse Cap Part Number 0.25 inch × 1.25 inch (UL 198G,[...]

  • Page 33

    Start Up A WG2021 User Manual 1 Ć5 Power On 6. Push the PRINCIP AL POWER SWITCH (shown in Figure 1 -1) on the rear panel of this instrument. Power is now applied to the standby circuit of this instrument.         Figure 1 Ć1: Rear [...]

  • Page 34

    Start Up 1 Ć6 A WG2021 User Manual T able 1Ć1: Power Cord Identification Plug Configuration Normal Usage Option Number North America 125 V Standard Europe 230 V A1 United Kingdom 230 V A2 Australia 230 V A3 North America 230 V A4 Switzerland 230 V A5 North American 1 15V/15A Plug NEMA 5Ć20P 1A North American 120/208V 3ĆPhase Plug NEMA L21Ć30P [...]

  • Page 35

    Start Up A WG2021 User Manual 1 Ć7 Once this instrument is installed, leave the PRINCIP AL POWER SWITCH on and use the ON/STBY switch as the power switch.  . This instrument needs to be warmed up for at least 20 minutes in or der to operate at its optimum pr ecision.   Figure 1 Ć2: ON/STBY Switch[...]

  • Page 36

    Start Up 1 Ć8 A WG2021 User Manual displayed, you should execute the calibrations in the UTILITY menu. Still, when the error message is displayed, contact our nearest representative. T o exit the diagnostics system, press any of the buttons. The system moves on to the SETUP menu.  . In or der to pr eserve the precision of the instrumen[...]

  • Page 37

    A WG2021 User Manual 2 Ć1 Introduction This section will discuss the following: Overview . The names of the parts of the instrument and their functions. Basic Menu Operation. Operations commonly performed on the instrument and how to enter numbers Operating Examples. Simple examples showing how to output waveforms. These examples are designed to h[...]

  • Page 38

    Introduction  A WG2021 User Manual[...]

  • Page 39

    A WG2021 User Manual 2 Ć3 Overview The instrument can be divided into three main areas: the front panel, the side panel and the rear panel. In this section, we will list the names and functions of the parts in each of these areas. W e will also list typical display messages that appear on the screen and what they mean. Front Panel TRIGGER HARDCOPY[...]

  • Page 40

    Overview 2 Ć4 A WG2021 User Manual (1) Bottom Buttons Use the seven bottom buttons to display corresponding menus. Pressing any button in the MENU column, or the F. G button, displays its corresponding menu. These menus are generally the highest level menus. (2) Side Buttons Use the five side buttons to select the side menus displayed on the right[...]

  • Page 41

    Overview A WG2021 User Manual 2 Ć5 MHz/ m s 0 1 A . 23 B F. G UTILITY kHz/ms/mV D ENTER EDIT MODE C 8 7 56 4 LOAD/SAVE VALUE CURSOR SETUP MENU 9 INPUT TRIGGER MANUAL E ns F HARDCOPY 16 17 18 19 11 12 9 20 10 14 15 13 50 W ± 5VRMS 1M W ± 10VpĆp Hz/s/V Figure 2 Ć2: Front Panel Button Detail (9) Menu Buttons and Indicators The MENU column compris[...]

  • Page 42

    Overview 2 Ć6 A WG2021 User Manual MODE Menu Use the MODE menu to set the operation mode. There are two main types of operation modes: the trigger modes ( Cont, T riggered , Gated and Burst ) and the modes in which waveforms are output in sequence for each trigger ( W aveform Advance and Autostep ). This menu also has an item for setting the timin[...]

  • Page 43

    Overview A WG2021 User Manual 2 Ć7 (12) V ALUE Button and Indicator Press the V ALUE button to light the LED indicator . In this state, inputting the numeric values or selecting the item can be done using the numeric keys or the general purpose knob. After input or selection, press the V ALUE button to enter the setting. When a special V ALUE butt[...]

  • Page 44

    Overview 2 Ć8 A WG2021 User Manual Side Panel     !  21 Figure 2 Ć3: Side Panel (21) Floppy Disk Drive  #  "  !    "! #    ?[...]

  • Page 45

    Overview A WG2021 User Manual 2 Ć9 Rear Panel BE CONNECTED TO GROUND. PROTECTIVE GROUNDING CONDUCTOR MUST TO AVOID ELECTRIC SHOCK, THE POWER CORD WITH 250V FUSE OF THE SPECIFIED TYPE AND RATING. FOR CONTINUED FIRE PROTECTION REPLACE FUSE ONL Y PERSONNEL. REMOVE COVERS. REFER SERVICING TO QUALIFIED NO OPERATOR SERVICEABLE COMPONENTS INSIDE.DO NOT I[...]

  • Page 46

    Overview 2 Ć10 A WG2021 User Manual (25) CH1 AM IN Connector  !  "  ! !  %!  "! $# !  !   "!     W  !?[...]

  • Page 47

    Overview A WG2021 User Manual 2 Ć1 1 34 488 PORT IEEE STD CH1 DIGITAL DAT A OUT MARKER 2 OUT 5V FROM 50 W CH2 DIGITAL DAT A OUT CLOCK IN 50 W ± 2V MAX CLOCK OUT 2V FROM 50 W CH-1 5V FROM 50 W 28 35 CH-2 MARKER 2 OUT 30 29 32 31 CLOCK OUT IEEE STD 488 PORT RS-232-C 2V FROM 50 W CH-1 CH-2 33 488 PORT IEEE STD CH-1 CH-2 2V FROM 50 W CLOCK OUT INTO -[...]

  • Page 48

    Overview 2 Ć12 A WG2021 User Manual (30) CLOCK OUT Connector This connector is used for internal clock output. The output level i s1Vw i t ha5 0 W termination. (31) CH1 MARKER 2 OUT Connector The CH1 MARKER 2 OUT connector provides a userĆspecified CH1 marker 2. The output level is 2.5 V with a 50 W termination. (32) CH2 MARKER 2 OUT Connector (O[...]

  • Page 49

    Overview A WG2021 User Manual 2 Ć13 CRT Display 1 3 2 4 5 7 8 6 Figure 2 Ć6: CRT Display[...]

  • Page 50

    Overview 2 Ć14 A WG2021 User Manual (1) Status Area The status line always displays the status of the instrument, no matter what menu is displayed on the screen. Five items are shown on the status line: the interface status (see the A WG2000 Series Programmer Manual); the operation mode and the trigger status (see page 3 Ć233); and the clock icon[...]

  • Page 51

    A WG2021 User Manual 2 Ć15 Basic Menu Operation Menu Operations Operations (settings, procedures and selection of parameters for waveform output) are performed on this instrument by means of the system’ s menus. When one of the menu buttons in the center of the front panel is pressed, the menu corresponding to that button will appear . There are[...]

  • Page 52

    Basic Menu Operation 2 Ć16 A WG2021 User Manual When you select the desired menu item, the numeric input columns and the selections controlled by that menu are displayed. T o change the selections and numeric values, use the numeric keys or general purpose knob. When you select a menu item, one of the following occurs.  The lower-level menu is [...]

  • Page 53

    Basic Menu Operation A WG2021 User Manual 2 Ć17 In the following section, we will explain these numeric input methods in more detail. T o specify numeric values with the numeric keys, ENTER key , and unit keys on the front panel, perform the following steps. 1. Press the button for the menu item you want to change. 2. Use the numeric keys to input[...]

  • Page 54

    Basic Menu Operation 2 Ć18 A WG2021 User Manual MHz/ m s 1 5 3 2 0 9 8 7 6 4 .A D B C kHz/ms/mV Hz/s/V ENTER ENTER Key Numeric Keys Unit Keys Delete Key F ns E Figure 2 Ć9: Numeric Keys, Unit Keys, Delete Key , and ENTER Key Numeric Input Examples. Example 1: Clock frequency numeric input ( Clock in SETUP menu) The value before input mode was 100[...]

  • Page 55

    Basic Menu Operation A WG2021 User Manual 2 Ć19 T o change the unit to MHz, press “ 1 ”, “ 2 ”, “ . ”, “ 3 ”, and MHz/  s keys in order . This changes the value to 12.30 MHz. The frequency is expressed by a four-digit number . When a value has been entered, pressing one of the unit keys will change the unit to that value and wil[...]

  • Page 56

    Basic Menu Operation 2 Ć20 A WG2021 User Manual   VALUE CURSOR    Figure 2 Ć10: General Purpose Knob and Arrow Buttons    Figure 2 Ć1 1: Knob Icon and Underscore When a numeric value has been changed usi[...]

  • Page 57

    Basic Menu Operation A WG2021 User Manual 2 Ć21 Numeric Specification Example. Turning the general purpose knob one click to the right increases the value of the underscored digit by 1. T urning it one click to the left decreases the value by 1. For example, if the value is 173.0 and the cursor is under the 7, turning the general purpose knob left[...]

  • Page 58

    Basic Menu Operation  A WG2021 User Manual[...]

  • Page 59

    A WG2021 User Manual 2 Ć23 Operating Examples In this section, we will use simple examples to illustrate the basic procedures for waveform output on the A WG2021. Six examples will be given; these are listed below . Buttons and menu items to be used will be shown to the left, and a description of the corresponding operation will appear on the righ[...]

  • Page 60

    Operating Examples 2 Ć24 A WG2021 User Manual Necessary Equipment The following equipment is needed to execute Examples 1 – 6:  Digital storage oscilloscope (T ektronix TDS series instrument or equivalent)  50 W cables (3)  GPIB cable (1)  50 W terminators (2)  Sample waveform library disk (included with the instrument as a standa[...]

  • Page 61

    Operating Examples A WG2021 User Manual 2 Ć25 Figure 2 Ć12: Menu Display (showing Date/T ime item selected) 3. Select Y ear from the side menu. 4. T urn the general purpose knob to set the year to 1994 . 5. In the same manner , select Month , Day , and Hour from the side menu and set the values to February , 1 and 15, respectively . The time is d[...]

  • Page 62

    Operating Examples 2 Ć26 A WG2021 User Manual It is possible to have the date and time constantly displayed on the screen. T o do this, use the following procedure: 1. Select Misc from the bottom menu. 2. Select Display ... from the side menu. 3. Press Date Time in the sub-menu and select On . The current date and time will be displayed in the upp[...]

  • Page 63

    Operating Examples A WG2021 User Manual 2 Ć27 In this operation, you will set the display brightness of the screen. The display offers three dif ferent levels of brightness. Use the following procedure to adjust the overall display brightness to the proper level: 1. Select Brightness from the side-menu. Figure 2 Ć14: Setting the Display Brightnes[...]

  • Page 64

    Operating Examples 2 Ć28 A WG2021 User Manual Example 2: Output of a W aveform Using the Sample Waveform Library Disk In Example 2, you will output a waveform using the sample waveform library disk, a standard accessory included with the instrument. The sample waveform should be loaded from the floppy disk to the internal memory of the instrument.[...]

  • Page 65

    Operating Examples A WG2021 User Manual 2 Ć29 Figure 2 Ć16: Sample W aveform Library Disk Files 6. Select Load All from the side menu. The display shown in Figure 2 -17 will appear .[...]

  • Page 66

    Operating Examples 2 Ć30 A WG2021 User Manual Figure 2 Ć17: CRT Screen Display When Load All is Selected All the files in the lower box on the screen are loaded into internal memory . The loaded files are displayed in the internal memory list in the upper box on the screen. T urn the general purpose knob to scroll through the list of files displa[...]

  • Page 67

    Operating Examples A WG2021 User Manual 2 Ć31 These parameters are used for waveform output. 1. Press the SETUP button in the MENU column. The SETUP menu is displayed. Figure 2 Ć18: SETUP Menu 2. Select W aveform Sequence from the bottom menu. 3. T urn the general purpose knob to develop the waveform file list. Select the file GAUSS_P .WFM from t[...]

  • Page 68

    Operating Examples 2 Ć32 A WG2021 User Manual Figure 2 Ć19: W aveform File List 4. Select O.K . from the sub-menu. The selected file will be confirmed and the output conditions will be automatically set. Figure 2 -20 shows the SETUP menu with the file GAUSS_P .WFM selected.  . The selected file is locked. Ther efor e, although changes[...]

  • Page 69

    Operating Examples A WG2021 User Manual 2 Ć33 Figure 2 Ć20: GAUSS_P .WFM File Output Parameters 5. Press the MODE button in the MENU column. The MODE menu is displayed. The files selected from the SETUP menu are displayed in the MODE menu.[...]

  • Page 70

    Operating Examples 2 Ć34 A WG2021 User Manual Figure 2 Ć21: MODE Menu 6. Select Cont from the bottom menu. When Cont is selected, the waveform is continuously output. 1. Connect this instrument and the oscilloscope with a 50 W cable and a 50 W termination as shown in Figure 2 -22. This instrument’ s waveform output is calibrated to a 50 W load.[...]

  • Page 71

    Operating Examples A WG2021 User Manual 2 Ć35 2. Press the front panel CH1 On/Off button to switch on waveform output. Figure 2 -23 shows the channel On/Off button and indicator . CH 1 25Vp–p MAX OPEN CIRCUIT FROM 50 W     CH 2 ! DO NOT APPL Y EXT SIGNAL Figur[...]

  • Page 72

    Operating Examples 2 Ć36 A WG2021 User Manual Example 3: Creating Files and Arbitrary W aveform Outputs When using the instrument for arbitrary waveform output, you should first use the editors in the EDIT menu to create the waveform to be output. In this operation, you will create an arbitrary waveform with the editors, and then you will set the [...]

  • Page 73

    Operating Examples A WG2021 User Manual 2 Ć37 Figure 2 Ć24: Initial Menu 2. Select New W aveform from the side menu. Figure 2 -25 shows the waveform editor graphic menu. The default for the number of points in the waveform is 1000.[...]

  • Page 74

    Operating Examples 2 Ć38 A WG2021 User Manual Figure 2 Ć25: W aveform Editor Graphic Menu 3. Press the front panel CURSOR button to activate the right side vertical bar cursor (it becomes a solid line). Pressing the CURSOR button toggles the selected vertical bar cursor from right to left and back again. Y ou can move the selected cursor using th[...]

  • Page 75

    Operating Examples A WG2021 User Manual 2 Ć39 Figure 2 Ć26: Setting the Point V alue for the Right Side V ertical Bar Cursor 5. Select Standard W aveform from the bottom menu. 6. Select T ype from the side menu. 7. T urn the general purpose knob to select Sine . 8. Select Cycle from the side menu. 9. Press “ 2 ” and ENTER in that order to set[...]

  • Page 76

    Operating Examples 2 Ć40 A WG2021 User Manual Figure 2 Ć27: Creating a Sine W aveform 11 . Press the CURSOR button to activate the right side vertical bar cursor . 12. Press the following key sequence: 9 , 9 , 9 , ENTER . This sets the point value to 999 . 13. Press the CURSOR button to activate the left side vertical bar cursor . 14. Press the f[...]

  • Page 77

    Operating Examples A WG2021 User Manual 2 Ć41 Figure 2 Ć28: Creating a Ramp W aveform This completes the waveform creation. Next, name the waveform file and exit the waveform editor . 22. Select Close/Write from the bottom menu. 23. Select Write and Close from the side menu. The display used to enter the file name will appear . 24. Input SAMPLE?[...]

  • Page 78

    Operating Examples 2 Ć42 A WG2021 User Manual Figure 2 Ć29: Naming a File 25. When you finish inputting the file name, select O.K . from the sub menu. The system returns to the initial menu and displays the waveform file created (see Figure 2 -30). The extender “ WFM ” will be displayed after the file name; this indicates that the file is a w[...]

  • Page 79

    Operating Examples A WG2021 User Manual 2 Ć43 Figure 2 Ć30: Initial Menu File List[...]

  • Page 80

    Operating Examples 2 Ć44 A WG2021 User Manual Arbitrary waveforms can be created on the graphic display with the POINT DRA W function. Use the following procedure to make a copy of the file SAMPLE–1.WFM created in the previous operation. 1. In the initial EDIT menu, select Copy bottom menu. The display used to enter the name of the copy of the f[...]

  • Page 81

    Operating Examples A WG2021 User Manual 2 Ć45 6. Select Edit from the side menu. The SAMPLE–2 waveform file will appear on the screen. Y ou will now set the range for waveform creation. The arbitrary waveform will be created within this range using the Point Draw function. 7. Press the CURSOR button on the front panel. This will activate the ver[...]

  • Page 82

    Operating Examples 2 Ć46 A WG2021 User Manual 12. Select Draw ... from the side menu. The first point will be drawn. 13. Press the V ALUE button on the front panel to determine the direction in which the point cursor will move. 14. Using the general purpose knob, move the point cursor to draw another point. 15. Select Add Draw Point from the sub-m[...]

  • Page 83

    Operating Examples A WG2021 User Manual 2 Ć47 If smoothing is turned off, linear interpolation will be performed and the points that have been drawn and the curve outside the area marked by the vertical cursors will be connected using straight lines. 18. Select Execute from the sub-menu. The points between the vertical cursors will be connected in[...]

  • Page 84

    Operating Examples 2 Ć48 A WG2021 User Manual Y ou will now add a noise waveform to the sine waveform. 1. Select New W aveform from the side menu in the initial EDIT menu. 2. Select Standard W aveform from the bottom menu. 3. Select Amplitude from the side menu. 4. Press “ 1 ” and ENTER in that order . 5. Check to make sure that the parameters[...]

  • Page 85

    Operating Examples A WG2021 User Manual 2 Ć49 8. Using the general purpose knob, select Add Noise . 9. Select Amplitude from the side menu. 10. Press “ . ”, “ 3 ”, and ENTER in that order . 11 . Select Execute from the side menu. Noise will be added to the sine wave, as shown in Figure 2 -36. Figure 2 Ć36: Sine W ave With Noise Added 12. [...]

  • Page 86

    Operating Examples 2 Ć50 A WG2021 User Manual This procedure is used to create a waveform using an equation. 1. Select New Equation from the side menu. Figure 2 -37 shows the equation editor menu. Figure 2 Ć37: Equation Editor Menu Display T o initially define an equation, you must specify its region in time. Do this by selecting “ range( ” i[...]

  • Page 87

    Operating Examples A WG2021 User Manual 2 Ć51  . Y ou can use the general purpose knob to select an item from within the component menu. After selecting an item, pr ess the fr ont panel V ALUE button or ENTER button to enter the selected item into the equation list. Now you will create the equation for the time region set in the previo[...]

  • Page 88

    Operating Examples 2 Ć52 A WG2021 User Manual Figure 2 Ć39: Display of Compiled W aveform Data 7. Select Continue Operation from the side menu to return the system to the previous equation edit menu. 8. Select Exit/Write from the bottom menu. 9. Select Write and Exit from the side menu. 10. Make SAMPLE–4 the file name. For details on how to inp[...]

  • Page 89

    Operating Examples A WG2021 User Manual 2 Ć53 Figure 2 Ć40: Initial Menu File List[...]

  • Page 90

    Operating Examples 2 Ć54 A WG2021 User Manual In this procedure, you will create a sequence file that combines two files: the waveform file created with the waveform editor ( SAMPLE–1.WFM ) and the waveform file created with the equation editor and then compiled ( SAM- PLE–4.WFM ). 1. Select New Sequence from the side menu. Figure 2 -41 shows [...]

  • Page 91

    Operating Examples A WG2021 User Manual 2 Ć55 5. Repeat Steps 2 through 4 to enter SAMPLE–4.WFM in the second line of the Destination list. The repetition count for this file should be set to 1 ; since this is the default value, there is no need to change it. This completes the creation of the waveform sequence file. Figure 2 -42 shows the resul[...]

  • Page 92

    Operating Examples 2 Ć56 A WG2021 User Manual Figure 2 Ć43: Sequence W aveform Display With Show Overview Selected 7. After verifying waveform, select Continue Operation from the side menu to return the system to the previous sequence edit menu. 8. Select Exit/Write from the bottom menu. 9. Select Write and Exit from the side menu. 10. Input SAMP[...]

  • Page 93

    Operating Examples A WG2021 User Manual 2 Ć57 In this operation, you will program waveforms to be output, using the files you have created in the previous operations to form an autostep file. 1. Select New Autostep on the second page of the side menu in the initial EDIT menu.  . Select More fr om the side menu to display the next page.[...]

  • Page 94

    Operating Examples 2 Ć58 A WG2021 User Manual Figure 2 Ć45: File List 4. Using the general purpose knob, select the SAMPLE–1.WFM file. 5. Select Set from the side menu. The waveform and output parameters for the SAMPLE–1.WFM file will appear . Figure 2 Ć46: Setting File Y ou will now set the CH1 file for Step 2. 6. Select More 1 of 2 from th[...]

  • Page 95

    Operating Examples A WG2021 User Manual 2 Ć59 The Step 2 display will appear . 8. Using the procedure described in Steps 2 – 5 above, set the CH1 file for Step 2 ( SAMPLE–3 ). Figure 2 Ć47: Setting the File for Step 2 9. Using the procedure described in Steps 2 – 8 above, set the CH1 file for Step 3 ( SAMPLE–4 ). Figure 2 Ć48: Setting th[...]

  • Page 96

    Operating Examples 2 Ć60 A WG2021 User Manual 12. Enter SAMPLE–6 as the name for the autostep file. See Step 24 of the waveform file creation procedure for instructions on how to enter the file name. 13. When the file name has been entered, select O.K. from the sub-menu. The autostep file that you have created will be saved in the internal memor[...]

  • Page 97

    Operating Examples A WG2021 User Manual 2 Ć61 7. Use the numeric and unit keys to input 1 , MHz , in order , to set the clock frequency . 8. Press the Source button in the side menu to select Internal . 9. Select Amplitude from the bottom menu. 10. Select CH1 from the side menu. 11 . Use the numeric and unit keys to input 5 , V , in order , to set[...]

  • Page 98

    Operating Examples 2 Ć62 A WG2021 User Manual Now use an oscilloscope to see what type of waveform is generated. Connect the A WG2021 to a oscilloscope using a 50 W cable and a 50 W termination as shown in Figure 2 -51. The waveform output for this instrument is calibrated for a 50 W load.    W   W ?[...]

  • Page 99

    Operating Examples A WG2021 User Manual 2 Ć63 Figure 2 Ć52: MODE Menu 2. Select Cont from the bottom menu. This operation mode continuously outputs the set waveform. Also, “ Run- ning ” is displayed in the trigger status area on the upper right section of the screen to show that the set waveform is being output. 3. Press the front panel CH1 O[...]

  • Page 100

    Operating Examples 2 Ć64 A WG2021 User Manual      Figure 2 Ć53: Setting the Marker Default T riggered Mode. In the following steps, set the operation mode to T riggered and generate the trigger signal with the TRIGGER MANUAL button to control the waveform output. 4. Select T riggered from the bottom m[...]

  • Page 101

    Operating Examples A WG2021 User Manual 2 Ć65 Figure 2 Ć54: Menu Displayed When T riggered is Selected Figure 2 -55 shows the MANUAL button and the TRIGGER INPUT connector for inputting an external trigger signal. MANUAL 5VRMS 50 W  10Vp-p 1M W     TRIGGER  [...]

  • Page 102

    Operating Examples 2 Ć66 A WG2021 User Manual 5. Press the MANUAL button. Check the oscilloscope to see that each time you press the MANUAL button, a set waveform is output once. Autostep Mode. Using the following procedure, you can set the operation mode to Autostep and use the MANUAL button to generate a trigger signal and control step waveform [...]

  • Page 103

    Operating Examples A WG2021 User Manual 2 Ć67 Figure 2 Ć57: Autostep File List 8. Using the general purpose knob, select the SAMPLE–6.AST file. In this example, there is only one file in the list, so it will already be selected. 9. Select O.K. from the sub-menu. 10. Press the CH1 On/Off button on the front panel to turn on waveform output. 11 .[...]

  • Page 104

    Operating Examples 2 Ć68 A WG2021 User Manual Example 4: Loading and Saving Files  . When the instrument is switched off, the data in the internal memory is erased. Accor dingly , it is necessary to copy any files that have been cr eated or edited onto a floppy disk or into the instrument’ s internal non - volatile memory (NVRam). In[...]

  • Page 105

    Operating Examples A WG2021 User Manual 2 Ć69 Figure 2 Ć58: SA VE Menu 5. Select Save All from the side menu. When Save All is selected, all the files in internal memory (listed in the upper screen) are saved to the NVRam. See Figure 2 -59.[...]

  • Page 106

    Operating Examples 2 Ć70 A WG2021 User Manual Figure 2 Ć59: Files Saved in NVRam When Save is selected from the side menu, only the file displayed inverted in the internal memory list is saved to NVRam. 6. Check to make sure that Auto Load in the bottom menu is Off . If it is not Off , select Auto Load from the bottom menu, then select Off from t[...]

  • Page 107

    Operating Examples A WG2021 User Manual 2 Ć71 The following procedure loads files into internal memory . 1. Press the LOAD/SA VE button in the MENU column. Make sure that there are no files in the internal memory file list in the upper screen (see Figure 2 -60). Figure 2 Ć60: Internal Memory File List 2. Select Load from the bottom menu. Here NVR[...]

  • Page 108

    Operating Examples 2 Ć72 A WG2021 User Manual Figure 2 Ć61: Files Loaded into Internal Memory When you select Load from the side menu, the file displayed in inverted video in the NVRam list is loaded into internal memory .[...]

  • Page 109

    Operating Examples A WG2021 User Manual 2 Ć73 Using the Auto Load process, it is possible to automatically load files from a designated device into the instrument’ s internal memory when the power to the instrument is turned on. Y ou can do this with the following procedure: 1. Select Auto Load from the bottom menu. 2. Select from NVRam from the[...]

  • Page 110

    Operating Examples 2 Ć74 A WG2021 User Manual Example 5: Loading W aveforms From Other Instruments The A WG2021 can transfer waveforms via a GPIB cable from a digital storage oscilloscope (DSO). In Example 5, you will transfer waveforms from a T ektronix TDS series digital storage oscilloscope. 1. Connect the A WG2021 and the other instruments as [...]

  • Page 111

    Operating Examples A WG2021 User Manual 2 Ć75   m  Figure 2 Ć63: DSO Screen 3. Press the MENU column LOAD/SA VE button for the A WG2021. 4. Select Device from the bottom menu. 5. Select GPIB from the side menu. At this point, if the remote port is not GPIB or the GPIB is not configured for waveform [...]

  • Page 112

    Operating Examples 2 Ć76 A WG2021 User Manual 6. Select Load from the bottom menu. 7. Use the general purpose knob to select the name of the DSO instrument connected to the instrument and the transferring source from the Name column in the GPIB Source list. In this example, you should select “ Te k TDS CH1. ” See Figure 2 -65. Figure 2 Ć65: G[...]

  • Page 113

    Operating Examples A WG2021 User Manual  If Load Without Preamble in the side menu is selected, the waveform preamble will not be loaded (in other words, only the waveform data will be loaded). In such cases, all parameters will be set to the default values of the output parameters. This completes the Example 5.[...]

  • Page 114

    Operating Examples 2 Ć78 A WG2021 User Manual Example 6: Using the W aveform Function Generator The instrument is equipped with a waveform function generator for generating simple waveform functions. Pressing the F. G button on the front panel will change the mode to function generator ( FG ) mode and enable you to set various waveform parameters.[...]

  • Page 115

    Operating Examples A WG2021 User Manual  2. Select Frequency from the side menu. 3. Press 1 and the MHz/  s key in the Unit key to input the frequency with the numeric keys. 4. T o set the frequency with the general purpose knob, select the index digit for input with the front panel arrow buttons ( ← / → ). Press the ← butto[...]

  • Page 116

    Operating Examples 2 Ć80 A WG2021 User Manual Figure 2 Ć67: CH1 Output Parameter Setting Display This completes the sine–wave output parameter setting. Now you will check the actual waveform on the oscilloscope screen.[...]

  • Page 117

    Operating Examples A WG2021 User Manual 2 Ć81 Connect the A WG2021 to an oscilloscope with 50 W cables and 50 W termina- tions as shown in Figure 2 -68. The waveform output for this instrument is calibrated for a 50 W load.   W     W    ?[...]

  • Page 118

    Operating Examples  A WG2021 User Manual[...]

  • Page 119

    A WG2021 User Manual 3 Ć1 Introduction Section 3 will describe in detail the functions contained in each of the menus. EDIT Menu SETUP Menu MODE Menu LOAD/SA VE Menu UTILITY Menu FG Menu Each section will describe menu functions in the following order:  Menu Structure. Each menu will be shown in a diagram listing the menu items from left to rig[...]

  • Page 120

    Introduction 3 Ć2 A WG2021 User Manual Select this button to execute the currently selected menu function. For example, in the Draw ... menu, pressing this button will cause the waveform to be drawn; in the Shift... menu, it will cause the waveform to move. Select this button to cancel the most previous operation — for example, Execute, calculat[...]

  • Page 121

    A WG2021 User Manual 3 Ć3 EDIT Menu General Description T o use the A WG2021 to output arbitrary waveforms, you must first create a file for the waveform to be output. There are four file types, each created by a different editor . Files created in this manner will have an extension after the file name that identifies what type of file they are. E[...]

  • Page 122

    EDIT Menu 3 Ć4 A WG2021 User Manual Initial Menu T o create or edit waveform files, press the EDIT button of the MENU column to display the initial menu. Figure 3 -1 shows the structure of the initial EDIT menu. MENU Button Bottom Menu Side Menu Editor Initial Menu New Equation .EQU Equation Editor EDIT New Sequence .SEQ Sequence Editor New Autost[...]

  • Page 123

    EDIT Menu A WG2021 User Manual 3 Ć5 The following list shows the functions available for each menu item and the page on which you can find a description of that function. T able 3Ć1: Menu Functions Menu Function Page Edit Editing an existing file 3 Ć7 New W aveform Creating a new file (.WFM) W aveform editor Graphic display Timing display T able[...]

  • Page 124

    EDIT Menu 3 Ć6 A WG2021 User Manual Figure 3 -2 shows the initial menu of the EDIT . A description for each callout follows. 1 4 2 3 Figure 3 Ć2: Display of the Initial Menu (1) Catalog:Memory           (2) Free Memo[...]

  • Page 125

    EDIT Menu A WG2021 User Manual 3 Ć7 (4) File List                   ?[...]

  • Page 126

    EDIT Menu 3 Ć8 A WG2021 User Manual 3. Select Edit from the side menu. The system automatically enters the editor appropriate for the file-type extension so the selected file can be edited. The following operations can be performed for the file that has been created: Rename Renaming a file Comment Comment input Copy Copying a file Delete Deleting [...]

  • Page 127

    EDIT Menu A WG2021 User Manual 3 Ć9 Figure 3 Ć3: Menu Displayed When Rename is Selected Before entering the new file name, you must delete the current file name. 3. T o delete a character, press the Delete button on the front panel. This deletes the character right before the cursor . The cursor can be moved with the front panel z and ! buttons. [...]

  • Page 128

    EDIT Menu 3 Ć10 A WG2021 User Manual When O.K. is selected, the file is saved into internal memory with the changed file name and displayed in the file list on the CR T screen. Select O.K. or Cancel to return to the initial menu.  . If ther e is alr eady a waveform file in internal memory with the name the compiled waveform file will b[...]

  • Page 129

    EDIT Menu A WG2021 User Manual 3 Ć1 1 Figure 3 Ć4: Menu Displayed When Delete is Selected If you select O.K. from the side menu, the file is deleted. If you decide not to delete the file, select Cancel . When either O.K. or Cancel is selected, the system returns to the initial menu. Select Lock to lock or unlock a file. When the file is locked, i[...]

  • Page 130

    EDIT Menu 3 Ć12 A WG2021 User Manual Figure 3 Ć5: Menu Displayed When Lock is Selected 3. Select Delete from the bottom menu. Check to make sure that the words “ File locked. ” is displayed in the message area to indicate that it is not possible to delete the file. 4. If you press the Lock bottom menu button again, the file is unlocked and Of[...]

  • Page 131

    EDIT Menu A WG2021 User Manual 3 Ć13 3. Select Expand SEQ into WFM from the side menu. Y ou will be asked to provide a name for the resulting waveform file. See Figure 3 -6. If necessary , change the default name. See “Renaming a File” described above. Figure 3 Ć6: Menu Display When Expand SEQ into WFM is Selected 4. Press O.K. to confirm the[...]

  • Page 132

    EDIT Menu 3 Ć14 A WG2021 User Manual W aveform Editor Use the waveform editor to create or edit waveform files with the extension of .WFM . W aveform files contain waveform data, marker signal data, and the waveform output parameters set with the SETUP menu. The waveform data display formats are graphic, table, and timing. The editing functions di[...]

  • Page 133

    EDIT Menu A WG2021 User Manual 3 Ć15 Figure 3 Ć7: Graphic CRT Display In graphic display , the waveform is created or edited with the waveform displayed in the waveform editor in graphic display . For details on the different formats, see “T iming Display” and “T able Display”. Up to three waveforms can be displayed and edited in the wave[...]

  • Page 134

    EDIT Menu 3 Ć16 A WG2021 User Manual Figure 3 Ć8: W aveform Editor With Three Editing Areas When there is more than one waveform displayed in the waveform editor , the following menu items will be added:  Cursor Link to... will be added to the Setting menu item. See Page 3 -34. Cursor Link to.. Used to link the cursors in different editing are[...]

  • Page 135

    EDIT Menu A WG2021 User Manual 3 Ć17 Compare... Used to compare the waveform in the area desig- nated by the vertical bar cursors with the waveform in another editing area. In this example, you will select three waveforms in the waveform editor . The following procedure starts in the initial EDIT menu. 1. Select New W aveform from the side menu. T[...]

  • Page 136

    EDIT Menu 3 Ć18 A WG2021 User Manual 5. Select O.K. from the sub-menu. When this is done, W aveform2 will be added to the side menu and the W aveform2 editing area will appear on the screen. See Figure 3 -10. Figure 3 Ć10: W aveform2 Added 6. Select Another W aveform from the side menu. 7. Using the general purpose knob, select a waveform file. I[...]

  • Page 137

    EDIT Menu A WG2021 User Manual 3 Ć19 Figure 3 Ć1 1: Menu Display When Show Catalog Entry is Selected 9. Select Continue from the sub-menu. 10. Select O.K. from the sub-menu. W aveform3 will be added to the side menu and the W aveform3 editing area will appear on the screen. See Figure 3 -12. Figure 3 Ć12: W aveform3 Added[...]

  • Page 138

    EDIT Menu 3 Ć20 A WG2021 User Manual The three waveform items ( W aveform1 , W aveform2 and W aveform3 ) will be displayed in the side menu. Y ou will select the waveform to be edited from these items. 11 . Select W aveform2 from the side menu. A box will appear around the editing area to indicate that this waveform has been selected. T o close a [...]

  • Page 139

    EDIT Menu A WG2021 User Manual 3 Ć21 as is and a new file is created with the new file name. If you select Cancel , the input file name is canceled and the system returns to the editor without saving the data into internal memory . Although the created or edited data is not saved at this time, it is retained for further editing. When saving a newl[...]

  • Page 140

    EDIT Menu  A WG2021 User Manual 4. Press the front panel V ALUE button. The selected character is inserted immediately before the cursor . 5. Repeat Steps 3 and 4 until the entire file name has been entered. In this example, we will enter the name SAMPLE . Up to 8 characters can be input. T o delete a character , press the Delete but[...]

  • Page 141

    EDIT Menu A WG2021 User Manual 3 Ć23 Graphic Display In graphic display , the waveform is displayed in graphic form in the waveform editor and it is created or edited in that form. The horizontal axis indicates time or number of points, while the vertical axis indicates the levels. W aveforms are displayed at each data point in 12 -bit resolution.[...]

  • Page 142

    EDIT Menu 3 Ć24 A WG2021 User Manual Select/Open Operation W aveform1 W aveform3 W aveform2 Another W aveform Cut Copy to Buffer W aveform Editor *1 *1 Draw ... Shift... Scale... Invert... Clip... Set Result to Clip Level Shift V alue Scale Factor New Size *2 Origin *2 Add Draw Point Delete Draw Point Smooth Invert Set High Set Low Set Pattern Mar[...]

  • Page 143

    EDIT Menu A WG2021 User Manual 3 Ć25 Bottom Menu Side Menu Sub Ć Menu Undo Write Close/Write Write and Close Close without Writing Horiz.Unit Setting View type... Graphic Timing T able W aveformx W aveformxx Link Off Grid W aveform Points Clock *5 Cursor Link to... *1 Standard W aveform T ype Amplitude Offset Frequency *6 Cycle *6 Zoom Horizontal[...]

  • Page 144

    EDIT Menu 3 Ć26 A WG2021 User Manual The following list describes the functions for each of the menu items and gives the number of the page on which you can find a more detailed explanation of that item. T able 3Ć2: Menu Functions Menu Function Page Select /Open Opening and selecting the editing area 3 Ć15 Operation Editing waveforms in graphic [...]

  • Page 145

    EDIT Menu A WG2021 User Manual 3 Ć27 T able 3Ć2: Menu Functions (Cont.) Menu Page Function #!  %! !#  "#! $# &%! ) " !# % "  '# #[...]

  • Page 146

    EDIT Menu 3 Ć28 A WG2021 User Manual (3) D $ ! !  ! "! !$ ! !  ! #!  "   (4) Horizontal Scroll Indicator  !  &   &ap[...]

  • Page 147

    EDIT Menu A WG2021 User Manual 3 Ć29 Cursor Link to... Linking the vertical bar cursors Grid Displaying a grid in the editing area  . These settings ar e the same in all display formats (graphic, timing and table). In the following section, each of these items will be discussed in detail. Selecting the W aveform Data Display Format. Th[...]

  • Page 148

    EDIT Menu  A WG2021 User Manual When you create a new waveform file, the waveform point size is set to the default value of 1000. T echnically , you can change this size to any value up to 262,144 points and edit the waveform data as desired. However , due to hardware limitations, the waveform point size on this instrument is limited[...]

  • Page 149

    EDIT Menu A WG2021 User Manual 3 Ć31 Append 0 “0” (7FF) values will be added after the data until a size of a multiple of 8 is reached. Expand The data will be interpolated and expanded to make it a multiple of 8. Expand with Clock The data will be interpolated and expanded to make it a multiple of 8, and the clock speed will increase proporti[...]

  • Page 150

    EDIT Menu 3 Ć32 A WG2021 User Manual Time Sets the horizontal axis unit to time. The cursor position data at the top of the CR T is displayed in time and data can be edited in time units. Point Sets the horizontal axis unit to points. The cursor position data at the top of the CR T is displayed in points and data can be edited in points. In Figure[...]

  • Page 151

    EDIT Menu A WG2021 User Manual 3 Ć33 250 MHz, waveform data can be edited at a resolution of 4 ns. Figure 3 -17 shows the Setting menu for Clock . Figure 3 Ć17: Menu Displayed When Clock is Selected 1. Select Setting from the bottom menu. 2. Press the Horiz. Unit button in the side menu to select Time . 3. Select Clock from the side menu. 4. Inpu[...]

  • Page 152

    EDIT Menu 3 Ć34 A WG2021 User Manual editing area 2 to move the same distance. The following diagram shows the menu configuration.                    Figure [...]

  • Page 153

    EDIT Menu A WG2021 User Manual 3 Ć35 2. Select W aveform2 from the side menu. 3. Select Setting from the bottom menu. 4. Select More 1 of 2 from the side menu and then select Cursor Link to... . 5. Select W aveform1 from the sub-menu. 1 z will appear at the top of editing area 2. 6. Select Go Back from the sub-menu. The Setting side menu will reap[...]

  • Page 154

    EDIT Menu 3 Ć36 A WG2021 User Manual Figure 3 Ć19: Grid Set to On 1. Select Setting from the bottom menu. 2. Select More 1 of 2 from the side menu. 3. Press the Grid button in the side menu and select On . A grid will appear in the editing area.  . Grid On/Off can be set same as timing and table display . However , grid display is onl[...]

  • Page 155

    EDIT Menu A WG2021 User Manual 3 Ć37 When you select the Standard W aveform item, a function waveform is created in the area between the specified vertical bar cursors, or a waveform is created through calculation of the original waveform and a function waveform. When you select Standard W aveform from the bottom menu, the following items are disp[...]

  • Page 156

    EDIT Menu 3 Ć38 A WG2021 User Manual Setting the Parameters for Function W aveforms. The following parameters can be set for each type of function waveform designated with the T ype command. Note, however , that only Amplitude and Offset can be set for a Noise waveform, while only Offset can be set for a DC waveform. Cycle 0.1 to 100,000 (in 0.1 i[...]

  • Page 157

    EDIT Menu A WG2021 User Manual 3 Ć39 Figure 3 Ć20: Creating a Sine W ave Procedure 2: Adding a W aveform to Existing Data. In this example, you will add noise to the sine wave you created in Procedure 1. The procedure starts from where you left off in Procedure 1. 1. Select T ype from the side menu. T urn the general purpose knob or press the T y[...]

  • Page 158

    EDIT Menu 3 Ć40 A WG2021 User Manual Figure 3 Ć21: Adding Noise to the Sine W ave  . Portions of the waveform that pr otrude outside the editing ar ea when the other waveform is added will be clipped. Procedure 3: Multiplying W aveforms. In this example, you will multiply the sine wave you created in Procedure 1 by another sine wave w[...]

  • Page 159

    EDIT Menu A WG2021 User Manual 3 Ć41 4. Select Amplitude from the side menu. Using the numeric keys or the general purpose knob, set the p-p amplitude for the sine wave to 1. 5. Select Execute from the side menu. When you select Execute , the sine wave between the vertical bar cursors will be multiplied by the different frequency sine wave. See Fi[...]

  • Page 160

    EDIT Menu 3 Ć42 A WG2021 User Manual Invert... Invert function Clip... Clip function Marker ... Setting a marker Insert Other W aveform Inserting other waveforms Single W aveform Math... Single waveform calculations Dual W aveform Math.... Calculations with other waveform data Region Shift... Specified region shift When editing two or more wavefor[...]

  • Page 161

    EDIT Menu A WG2021 User Manual 3 Ć43      Figure 3 Ć23: Defining the Editing Area Subsequent editing operations will be performed in the area that you have set between the left and right vertical bar cursors. The following section will describe each of[...]

  • Page 162

    EDIT Menu 3 Ć44 A WG2021 User Manual Figure 3 -24 shows an example of a waveform before and after a section is cut. Note that only the section between the two vertical bar cursors is removed including the bar cursors.   Figure 3 Ć24: Cutting W aveforms W aveform data that has been cut is stored in the paste buffer[...]

  • Page 163

    EDIT Menu A WG2021 User Manual 3 Ć45 There are no sub-menus associated with these commands; when they are selected, the copy or paste operation is performed instantly . Marker signals associated with that waveform data are also subjected to the copy and paste operations. Pasting data into a waveform will naturally increase the number of points in [...]

  • Page 164

    EDIT Menu 3 Ć46 A WG2021 User Manual When Paste from Buffer is selected, the waveform data copied into the paste buffer with the copy processing is pasted directly before the active vertical bar cursor . The left and right vertical bar cursors move to the two ends of the pasted waveform data. The paste buffer data can be inserted into a waveform o[...]

  • Page 165

    EDIT Menu A WG2021 User Manual 3 Ć47 3 1 2 Figure 3 Ć26: Menu Display When Draw ... is Selected (1) Point Cursor                   ?[...]

  • Page 166

    EDIT Menu  A WG2021 User Manual 3. Use the general purpose knob to move the point cursor to the location where you want to place a point. Each time the front panel V ALUE button is pressed, the direction of movement for the point cursor switches between horizontal (X) and vertical (Y). The X-Y coordinates for the point cursor positio[...]

  • Page 167

    EDIT Menu A WG2021 User Manual 3 Ć49 11 . Select Execute from the sub-menu. The points between the vertical bar cursors will be connected with straight lines, as shown in the right screen in Figure 3 -27. This is called linear interpolation.     #   [...]

  • Page 168

    EDIT Menu  A WG2021 User Manual In the horizontal direction, the shift value is the number of points or time; in the vertical direction, the shift value is specified with the vertical value. 1. Move the left and right vertical bar cursors to define the section of the waveform to be shifted. Then select Shift... from the second page o[...]

  • Page 169

    EDIT Menu A WG2021 User Manual 3 Ć51   Figure 3 Ć28: Horizontally Shifted Display 6. Press the Shift button in the sub-menu to select V ertical . 7. Select V alue from the sub-menu. Use the general purpose knob or the numeric keys to input the shift point value. The waveform can be shifted between –1.0000 and +1[...]

  • Page 170

    EDIT Menu 3 Ć52 A WG2021 User Manual   Figure 3 Ć29: V ertically Shifted Display 9. Select Go Back from the sub-menu. Scaling Function. Use Scale... to change the scale for the waveform data between the vertical bar cursors. Executing scaling changes the waveform data. The following diagram shows the menu configur[...]

  • Page 171

    EDIT Menu A WG2021 User Manual 3 Ć53 of points for the entire waveform can not exceed 262 144, so if x100 scaling would give more total points than that, the maximum setting factor drops to the one that gives 262 144 points. A negative factor reverses the waveform between the vertical bar cursors creating a mirror image. Scaling with a factor unde[...]

  • Page 172

    EDIT Menu 3 Ć54 A WG2021 User Manual 6. Press the Scale button in the sub-menu to select V ertical . 7. Select Origin from the sub-menu. Use the numeric keys or the general purpose knob to input the numeric value of the origin. This value is used as a reference when scaling vertically . It may be set to any value between –1.0000 and +1.0005 for [...]

  • Page 173

    EDIT Menu A WG2021 User Manual 3 Ć55 11 . Select Go Back from the sub-menu. The system moves from the Scale... sub-menu to the previous side menu. Invert Function. Use Invert... to invert the waveform data in the area specified with the vertical bar cursors either up/down or left/right. The following diagram shows the menu configuration for the In[...]

  • Page 174

    EDIT Menu 3 Ć56 A WG2021 User Manual 4. Press the Invert button in the sub-menu to select V ertical . 5. Select Execute from the sub-menu. The waveform is inverted vertically with the specified conditions. Figure 3 -33 shows an example of the waveform before and after it is inverted vertically .   Figure 3 Ć33: V [...]

  • Page 175

    EDIT Menu A WG2021 User Manual 3 Ć57 The Clip sub-menu item selects the area of the waveform data between the vertical bar cursors to be clipped. Either the area above the clip level ( Upper ) or below the clip level ( Lower ) can be selected. 3. Select Level from the sub-menu. 4. Use the numeric keys or the general purpose knob to input the clip [...]

  • Page 176

    EDIT Menu  A WG2021 User Manual Operation (More 3 of 3) Marker ... Set Pattern Set High Set Low Clear Pattern Cancel O.K. Key Data 1 Bit 4 Bits Import Line Data / User defined Code Config... Initial Src Initial Code Out [I/O] High/Low Invert/Keep 0 0 1 1 Go Back 1 2 Marker  . When a new waveform file is cr eated, the mark[...]

  • Page 177

    EDIT Menu A WG2021 User Manual 3 Ć59   Figure 3 Ć35: Marker Signal 1 Set High 4. Select Go Back from the sub-menu. The system returns from the Marker ... sub-menu to the side menu. Example: Setting a Marker Pattern. In this example, you will set a pattern for the marker and then create a marker signal with that pa[...]

  • Page 178

    EDIT Menu 3 Ć60 A WG2021 User Manual For detailed instructions on pattern setting, see “Setting Pattern Data” in the timing display in this section as well as “Pattern Codes” in Appendix F . For more detailed information on the method used to set patterns, see “Setting Pattern Data” in the T iming Display in this section and “Pattern[...]

  • Page 179

    EDIT Menu A WG2021 User Manual 3 Ć61 2. Use the general purpose knob to move the active vertical bar cursor to the position where the other waveform is to be inserted. Figure 3 Ć37: Defining the Location for Insertion The waveform is inserted right before the active vertical bar cursor . However , if the cursor is at the end of the waveform, the [...]

  • Page 180

    EDIT Menu 3 Ć62 A WG2021 User Manual Figure 3 Ć38: List of Files for Insertion 5. Select the Show Catalog Entry from the sub-menu. The waveform for the selected file is displayed. Figure 3 Ć39: File W aveform Display 6. Select O.K. from the sub-menu. The waveform from the selected file is inserted right before the active vertical bar cursor . Ma[...]

  • Page 181

    EDIT Menu A WG2021 User Manual 3 Ć63 Figure 3 Ć40: Inserting W aveforms Single W aveform Calculations. The Single W aveform Math... item allows you to perform mathematical calculations for the waveform itself. Calculations are applied to the portion of the waveform between the vertical bar cursors. Absolute Determines the absolute value for the a[...]

  • Page 182

    EDIT Menu 3 Ć64 A WG2021 User Manual Operation (More 3 of 3) Single W aveform Math... T ype Go Back Execute Absolute Square Cube Square Root Normalize Integral Differential T o derive the Absolute value for the amplitude of a sine wave between the vertical bar cursors: 1. Create the sine wave to be subjected to Absolute calculation. Figure 3 -41 s[...]

  • Page 183

    EDIT Menu A WG2021 User Manual 3 Ć65 Figure 3 Ć42: Absolute Calculation 7. Select Go Back from the sub-menu. The system returns from the Single W aveform Math... sub-menu to the side menu. Calculation Examples. The following diagrams show examples of a waveform before and after various calculations are performed.  Square. Doubles the absolute [...]

  • Page 184

    EDIT Menu 3 Ć66 A WG2021 User Manual  Cube. T riples the amplitude   Figure 3 Ć44: Cube Calculation  Square Root. Determines the square root for the absolute value of the amplitude.   Figure 3 Ć45: Square Root Calculation[...]

  • Page 185

    EDIT Menu A WG2021 User Manual 3 Ć67  Normalize. Normalizes the amplitude   Figure 3 Ć46: Normalize Calculation  Integral. Integrating the amplitude.   Figure 3 Ć47: Integral Calculation[...]

  • Page 186

    EDIT Menu 3 Ć68 A WG2021 User Manual  Differential. Dif ferentiating the amplitude.   Figure 3 Ć48: Differential Calculation Calculations With Other W aveform Data. Use Dual W aveform Math... to perform math calculations with the waveform currently being edited and other waveform data. The following calculation[...]

  • Page 187

    EDIT Menu A WG2021 User Manual 3 Ć69 1. Create the waveform to be operated on with the other waveform file data. Figure 3 -49 shows the example of waveform before the arithmetic opera- tions. Figure 3 Ć49: Example of W aveform Before Arithmetic Operations 2. Press the front panel CURSOR button. 3. Using the general purpose knob, move the vertical[...]

  • Page 188

    EDIT Menu 3 Ć70 A WG2021 User Manual Figure 3 Ć50: List of Files for W aveform Calculation 6. Select Show Catalog Entry from the sub-menu. The waveform for the selected file is displayed. See Figure 3 -51. Figure 3 Ć51: Selected File W aveform Display 7. After verifying the waveform, select Continue from the sub-menu. The waveform will disappear[...]

  • Page 189

    EDIT Menu A WG2021 User Manual 3 Ć71 before Dual W aveform Math... was selected. Figure 3 -52 displays the waveforms added ( Add ) between the vertical bar cursors. Figure 3 Ć52: W aveform Addition Display If you select Cancel , the menu returns to the menu on display before Dual W aveform Math... was selected without any calculations being made.[...]

  • Page 190

    EDIT Menu 3 Ć72 A WG2021 User Manual Interpolation Linear Quadratic Replace Add Smooth +/- Points Include Operation ( More 4 of 4 ) Region Shift... T ype Shift Scale V alue Config... Go Back Execute Go Back Left Right Expand Compress Data V alue Cursor Point Exclude T able 3-3 lists the differences between this function and the Shift function . T [...]

  • Page 191

    EDIT Menu A WG2021 User Manual 3 Ć73              !  !            ! ! ! ! ! "  Figure 3 Ć53: D[...]

  • Page 192

    EDIT Menu  A WG2021 User Manual Compress . In this case the value of the shift must be less than one half the size of the area surrounded by the left and right vertical bar cursors. The section that exceeds the position of one half the region is lost after the shift if the Data V alue item (described below) is set to Replace .  Sh[...]

  • Page 193

    EDIT Menu A WG2021 User Manual 3 Ć75  Interpolation. The data is re-sampled when shifting by fractional amounts. Data values between data points are acquired by interpolation. The Inter- polation item selects the interpolation method used. The following two options are provided. Linear interpolation Quadratic interpolation Linear interpolation [...]

  • Page 194

    EDIT Menu 3 Ć76 A WG2021 User Manual                  Figure 3 Ć56: Quadratic Interpolation Quadratic interpolation is expressed as follows. f ( x ) + Ax 2 ) Bx ) C The coefficients A , B , and C in the above formula are derived using the three points including those directly preceding and fol[...]

  • Page 195

    EDIT Menu A WG2021 User Manual 3 Ć77  Data V alue. This item selects the handling of overlapping regions in the shift. Add The shifted data and the overlapping data are added. Replace Replaces the region with the shifted data. When T ype is Compress , the data for points shifted beyond the center is lost.  Cursor Point. This item selects whe[...]

  • Page 196

    EDIT Menu 3 Ć78 A WG2021 User Manual     Figure 3 Ć58: Smoothing  . Since smoothing is equivalent to low pass filtering, featur es of the original waveform can be lost r esulting in significant changes to the waveform. T o acquire appr opriate outpu[...]

  • Page 197

    EDIT Menu A WG2021 User Manual 3 Ć79 2) Set the Cursor Point setting to Exclude . 3) Apply smoothing. However , there are waveforms for which smoothing may not be effective.  Increasing the Size of the Area. Data that is identical across the operation can be acquired by increasing the size of the area. (See Figure 3 -60.) Smooth data is acquire[...]

  • Page 198

    EDIT Menu 3 Ć80 A WG2021 User Manual T o designate a second editing area in the waveform editor: 1. Choose Select/Open from the bottom menu. 2. Select Another W aveform from the side menu. 3. Using the general purpose knob, select New W aveform from the waveform list and then select O.K. A second editing area will appear , as shown in Figure 3 -61[...]

  • Page 199

    EDIT Menu A WG2021 User Manual 3 Ć81  . Copying will include the point at which the cursor is located. The value indicated by  at the top of the waveform ar ea indicates the number of points between the two cursors, so the number of points that will be copied will be this value plus one point (the point at which the cursor is locate[...]

  • Page 200

    EDIT Menu 3 Ć82 A WG2021 User Manual Figure 3 Ć63: Setting the Copy Destination T o copy the waveform: 10. Select Operation from the bottom menu. 11 . Select Multiple Copy ... from the fourth page of the side menu ( More 4 of 4 ). When three waveform areas have been designated in the waveform editor , select one of the remaining two editing areas[...]

  • Page 201

    EDIT Menu A WG2021 User Manual 3 Ć83 14. Select Execute from the sub-menu. If the number of points in the waveform between the vertical bar cursors in the copy source is the same as the value set for Interval , the copied waveform will be displayed repeating at the interval designated with Interval . In the example shown in Figure 3 -64, both the [...]

  • Page 202

    EDIT Menu 3 Ć84 A WG2021 User Manual     Figure 3 Ć65: W aveform Copying (number of points in waveform < Interval value) If the number of points in the waveform between the vertical bar cursors in the copy source is greater than the value set for Interval , the overlapping portion will be added to the waveform. Fi[...]

  • Page 203

    EDIT Menu A WG2021 User Manual 3 Ć85 15. Select Go Back from the current sub-menu. The display moves from the Multiple Copy ... sub-menu to the side menu. Convolution Calculations. The Convolute... menu item appears when two or more waveforms are being edited. It is used to convolute the section of the waveform between the two vertical bar cursors[...]

  • Page 204

    EDIT Menu 3 Ć86 A WG2021 User Manual    Figure 3 Ć67: W aveforms Used for W aveform1 and W aveform2 The procedure after the two waveforms have been set in each editing area is as follows: Setting the convolution range 1. Select Select/Open from the bottom menu. 2. Select W aveform1 from the si[...]

  • Page 205

    EDIT Menu A WG2021 User Manual 3 Ć87 9. Using the numeric keys or the general purpose knob, set the positions of the left and right vertical bar cursors to define the section of the waveform for convolution. In this example, we will set the left cursor to point 0 and the right cursor to point 767. Calculating the waveforms 10. Select Operation fro[...]

  • Page 206

    EDIT Menu 3 Ć88 A WG2021 User Manual 13. Select Go Back from the current sub-menu. The display moves from the Convolute... sub-menu to the side menu. Comparing W aveforms. The Compare... item appears when two or more waveforms are being edited simultaneously . It is used to compare the section of the waveform between the two vertical bar cursors i[...]

  • Page 207

    EDIT Menu A WG2021 User Manual  2. Select W aveform1 from the side menu. This waveform will be the reference for comparison. 3. Press the CURSOR button on the front panel. 4. Using the numeric keys or the general purpose knob, set the positions of the left and right vertical bar cursors to define the section of the waveform for compa[...]

  • Page 208

    EDIT Menu 3 Ć90 A WG2021 User Manual Figure 3 Ć69: Compare... Item Selected 10. Press the Set Result to button in the sub-menu to select MARKER1 . This item is used to set where the results of comparison will be displayed. 11 . If you would like to apply hysteresis to the reference waveform, select Hysteresis and enter a value. If hysteresis is n[...]

  • Page 209

    EDIT Menu A WG2021 User Manual 3 Ć91 As there is less data in the Source waveform than the destination waveform, data at level 0 (in other words, a straight line) has been automatically added from point 626 to point 875 in the Source waveform.        ?[...]

  • Page 210

    EDIT Menu 3 Ć92 A WG2021 User Manual                Figure 3 Ć71: Comparison With Hysteresis 13. Se[...]

  • Page 211

    EDIT Menu A WG2021 User Manual 3 Ć93 Figure 3 Ć72: Zoom Menu Horizontal Zooming. When the waveform is enlarged horizontally using the Horizontal Zoom in item, three additional items are displayed in the side menu: Horizontal Zoom out Used to reduce the waveform Horizontal Zoom fit Used to return to normal waveform size (x1) Horizontal Pan Used to[...]

  • Page 212

    EDIT Menu 3 Ć94 A WG2021 User Manual   Figure 3 Ć73: Horizontal Zoom 5. Select Horizontal Zoom in again from the side menu. The degree of enlargement will increase each time the button is pressed. When the maximum enlargement is reached, the Horizontal Zoom in item will disappear . The displayed inverted portion o[...]

  • Page 213

    EDIT Menu A WG2021 User Manual 3 Ć95 V ertical Zooming. When the waveform is enlarged vertically with the V ertical Zoom in item, three new items will be added to the side menu: V ertical Zoom out Used to reduce the waveform. V ertical Zoom fit Used to return to normal waveform size (x1). V ertical Pan Used to scroll through the waveform when it i[...]

  • Page 214

    EDIT Menu 3 Ć96 A WG2021 User Manual T iming Display T o show the timing display for the waveform editor using the V iew type.... item in the Setting menu follow this procedure. 1. Select Setting from the bottom menu. 2. Select V iew type... from the side menu. Three items will be displayed in the sub-menu: Graphic , T iming and T able . 3. Select[...]

  • Page 215

    EDIT Menu A WG2021 User Manual 3 Ć97 Figure 3 -76 shows the menu configuration for the timing display . Select/Open Paste from Buffer Operation W aveform1 W aveform3 W aveform2 Another W aveform Cut Copy to Buffer W aveform Editor *1 *1 Set... Shift... Line V alue Copy Line... Source Destination Line Set High Set Low Set Pattern Invert... Line Exc[...]

  • Page 216

    EDIT Menu 3 Ć98 A WG2021 User Manual Undo Setting Close/Write Write Write and Close Close without Writing Clock Horiz.Unit Grid View type... Cursor Link to... Graphic Timing T able W aveformx W aveformxx Link Off W aveform Points *2 *1 Standard W aveform Pattern Step Min Max *3 *4 Horizontal Zoom in Horizontal Zoom out Horizontal Zoom fit Horizont[...]

  • Page 217

    EDIT Menu A WG2021 User Manual 3 Ć99 The following list shows the functions available for each menu item and the page on which you can find a description of that function. T able 3Ć4: Menu Functions Menu Function Page Select /Open Opening and selecting the editing area 3 Ć15 Operation Editing waveforms in timing display 3 Ć104 Cut Copy to Buffe[...]

  • Page 218

    EDIT Menu 3 Ć100 A WG2021 User Manual Figure 3 -77 shows the timing display screen. This section will describe each portion of the screen; however , descriptions of areas that are identical to the graphic display will be omitted. See “Graphic Display Screen” for a description of the graphic display . 1 3 2 Figure 3 Ć77: T iming Display Screen[...]

  • Page 219

    EDIT Menu A WG2021 User Manual 3 Ć101 (3) Button Operations   ! !           CURSOR      [...]

  • Page 220

    EDIT Menu 3 Ć102 A WG2021 User Manual Figure 3 Ć78: Count Up Pattern Display The following parameters can be set: Step The number of points for each data item. This value can be set to 1 – 10. Max The maximum value for the data. This value can be set anywhere between ( Min value + 1) and 4095. Min The minimum value for the data. This value can [...]

  • Page 221

    EDIT Menu A WG2021 User Manual 3 Ć103 Figure 3 Ć79: Gray Code Pattern Display Example of W aveform Data Creation. In the following operation, you will replace the data between the vertical bar cursors with a Count Up pattern, with the waveform point size set to 4096. 1. Select Standard W aveform from the bottom menu. 2. Press the CURSOR button on[...]

  • Page 222

    EDIT Menu 3 Ć104 A WG2021 User Manual Use Operation to edit the waveform data in a variety of ways. The side menu is made up of 3 pages. T o get to the next page of the menu, select More . The following list shows the names and functions of the items in the side menu. Cut Cutting waveforms Copy to Buffer Copying waveforms Paste from Buffer Pasting[...]

  • Page 223

    EDIT Menu A WG2021 User Manual 3 Ć105 Setting Data to High/Low . Use Set High and Set Low to set the data lines or marker in the area designated by the right and left vertical bar cursors to either High or Low . 1. Select Set... from the side menu displayed. 2. Press the CURSOR button on the front panel. 3. Using the general purpose knob, move the[...]

  • Page 224

    EDIT Menu 3 Ć106 A WG2021 User Manual Use Set Pattern to designate pattern data for the part of a data line or marker between the designated vertical bar cursors. Figure 3 -81 shows the pattern data menu that appears when you select Set Pattern from the sub-menu. Figure 3 Ć81: Pattern Data Setting Menu When the designated pattern is shorter than [...]

  • Page 225

    EDIT Menu A WG2021 User Manual 3 Ć107 through the rest of the data. The inverted display area in the Pattern Length indicates the portion of the pattern data currently being displayed on the screen. Pattern Length indicates the length of the pattern data that has been entered. This value will increase each time more pattern data is entered. Changi[...]

  • Page 226

    EDIT Menu 3 Ć108 A WG2021 User Manual T o set the point size for each item of pattern data, press the CURSOR button on the front panel and then select Point/Step . A knob icon will appear to the left of the Point/Step area. Pattern Code. Code is used to select the coding system used when the pattern strings are output. Depending on the designated [...]

  • Page 227

    EDIT Menu A WG2021 User Manual 3 Ć109 3. Using the general purpose knob, move the vertical bar cursors to define the area in which the pattern will be set. In this example, we will set the left vertical bar cursor to 250 and the right vertical bar cursor to 750. 4. Select Line from the sub-menu. T urning the general purpose knob, select DA T A5 fo[...]

  • Page 228

    EDIT Menu 3 Ć1 10 A WG2021 User Manual Figure 3 Ć82: Setting Pattern Data User defined Code Config... . Users can define their own conversion tables for code conversion. This function enables RLL codes, etc. to be freely defined. For sample codes, see “Pattern Codes” in Appendix F . Conversion tables defined with this menu item are protected [...]

  • Page 229

    EDIT Menu A WG2021 User Manual 3 Ć1 1 1 Figure 3 Ć83: User defined Code Conversion Menu 3. Define the codes as desired (see “Basic Operations” on the following). 4. Select Go Back to return to the Set Pattern menu. 5. Define the pattern data, using the same procedure as in steps 6 – 10 of the sample process for defining pattern data. 6. Pre[...]

  • Page 230

    EDIT Menu 3 Ć1 12 A WG2021 User Manual Inserting a Blank Line. Pressing the ENTER key causes a blank line to be inserted above the data item marked by the cursor .  . Blank lines cannot be inserted if there are more than two consecutive blank lines or if there are more than 16 lines in all. Defining Data. Move the cursor to the desired[...]

  • Page 231

    EDIT Menu A WG2021 User Manual   After the first time 6 and 7 appear , 0 will be treated as 6 and 1 will be treated as 7  6 and 7 read the input data and search for the same pattern. When the same pattern has been detected, the portion of the data that has been read is returned to its original status and then the next pattern i[...]

  • Page 232

    EDIT Menu 3 Ć1 14 A WG2021 User Manual Sample Pattern Conversion. When Source Data Pattern is unaf fected by other conditions Initial Src 0 Initial Code 0 Out[1/0] High/Low Source Data Pattern Converted Code         In the case of the above conversion, the data will be as follows:  [...]

  • Page 233

    EDIT Menu A WG2021 User Manual 3 Ć1 15 When Source Data Pattern is af fected by other conditions If 4 and 5 are used: Initial Src 0 Initial Code 0 Out[1/0] High/Low Source Data Pattern Converted Code               [...]

  • Page 234

    EDIT Menu 3 Ć1 16 A WG2021 User Manual If 6 and 7 are used (2): Initial Src 0 Initial Code 0 Out[1/0] High/Low Source Data Pattern Converted Code            [...]

  • Page 235

    EDIT Menu A WG2021 User Manual 3 Ć1 17 Clear Pattern. When data has been entered in the pattern data input area, the Import Line Data item in the sub-menu will change to Clear Pattern . Pressing the Clear Pattern button will delete all pattern data. Use the shift function to shift the data between the designated vertical bar cursors in individual [...]

  • Page 236

    EDIT Menu 3 Ć1 18 A WG2021 User Manual   Figure 3 Ć84: Shifting W aveform Data 5. Select Go Back from the current sub-menu. The system returns from the Shift... sub-menu to the previous side menu. Use Invert... to invert each data line or marker between the designated vertical bar cursors. The following diagram sh[...]

  • Page 237

    EDIT Menu A WG2021 User Manual 3 Ć1 19   Figure 3 Ć85: Inverting W aveform Data State 4. Select Go Back from the current sub-menu. The system returns from the Invert... sub-menu to the previous side menu. Use Copy line... to copy the waveform data between the designated vertical bar cursors from one data line to a[...]

  • Page 238

    EDIT Menu 3 Ć120 A WG2021 User Manual Destination selects the destination to which the waveform data selected with Source will be copied. Data line DA T A 1 1 – DA T A 0 or marker ( MARK- ER ) can be selected as the copy destination. From the copy source to the copy destination is indicated with an arrow . 4. Select Execute from the sub-menu. Th[...]

  • Page 239

    EDIT Menu A WG2021 User Manual 3 Ć121 2. Select Source from the sub-menu. T urning the general purpose knob, select one of the data lines or marker for data interchange. 3. Select Destination from the sub-menu. T urning the general purpose knob, select the other data line or marker for data interchange. 4. Select Execute from the sub-menu. The dat[...]

  • Page 240

    EDIT Menu 3 Ć122 A WG2021 User Manual !        "! " $ "  !!     % % #"!   T y[...]

  • Page 241

    EDIT Menu A WG2021 User Manual 3 Ć123              1. Move the vertical bar cursors to define the section of the data to be expand- ed. Then select Data Expand... from the third page of the side m[...]

  • Page 242

    EDIT Menu 3 Ć124 A WG2021 User Manual Use Insert Other W aveform to insert data from another waveform at a designated point in the waveform being edited. This item is located on the third page( More 3 of 3 ) of the side menu. The functions of this item are the same as for the Insert Other W aveform item for the graphic display of the waveform edit[...]

  • Page 243

    EDIT Menu A WG2021 User Manual 3 Ć125 Use the CURSOR button on the front panel to select the items needed for the shift register . The following items can be selected; the general purpose knob is used to set the desired value for each item. Register Length (sets the length of the register) Register Position (sets the position of the cursor) Point/[...]

  • Page 244

    EDIT Menu 3 Ć126 A WG2021 User Manual code series) bit strings. M series bit strings are combined with several different kinds of tap arrangements. The tap arrangement will change each time the Set Maximal Linear T aps button is pressed.  Setting Register V alues. Use Set All Regs in the sub-menu to set all register values to 1. Sample Settings[...]

  • Page 245

    EDIT Menu A WG2021 User Manual 3 Ć127 1. Select Shift Register Generator ... from the side menu. 2. Select User defined Code Config... from the sub menu. 3. Define the codes as desired. For the basic operations used when defining codes, see “User defined Code Config...” on Page 3 -1 10. 4. Select Go Back to return to the Shift Register Generat[...]

  • Page 246

    EDIT Menu 3 Ć128 A WG2021 User Manual 6. Select Line from the sub-menu. T urning the general purpose knob, select DA T A1 1 for which you want to set the pattern. 7. Select Register Config... from the sub-menu. 8. Press the CURSOR button on the front panel to select Register Length . 9. Using the general purpose knob, set the register length to 15[...]

  • Page 247

    EDIT Menu A WG2021 User Manual 3 Ć129 Zooming W aveforms. The function for this item is the same as for the Zoom item in waveform editor graphic display . See Page 3 -92. T able Display T o show the table display for the waveform editor using the View type.... item in the Setting menu: 1. Select Setting from the bottom menu. 2. Select V iew type..[...]

  • Page 248

    EDIT Menu 3 Ć130 A WG2021 User Manual Figure 3 -93 shows the menu configuration for the table display . T able Select/Open Paste from Buffer Operation Cut Copy to Buffer W aveform Editor Insert Other W aveform W aveform1 W aveform3 W aveform2 Another W aveform *1 *1 Write and Close Close without Writing Write W aveform Points View type... Horiz. U[...]

  • Page 249

    EDIT Menu A WG2021 User Manual 3 Ć131 The following list shows the functions available for each menu item and the page on which you can find a description of that function. T able 3Ć5: Menu Functions Menu Function Page Select /Open Opening and selecting the editing area 3 Ć15 Operation Editing waveforms in timing display 3 Ć135 Cut Cuttin g wav[...]

  • Page 250

    EDIT Menu 3 Ć132 A WG2021 User Manual Figure 3 -94 shows the table display screen. This section will describe each portion of the screen; however , descriptions of areas that are identical to the graphic display will be omitted. See “Graphic Display Screen” for a description of the graphic display . 9 10 1 3 2 4 5 6 7 8 Figure 3 Ć94: T able D[...]

  • Page 251

    EDIT Menu A WG2021 User Manual 3 Ć133 (5) L ąąV alue #    "!  V alue    $   !      !  L    !     # [...]

  • Page 252

    EDIT Menu 3 Ć134 A WG2021 User Manual Hexadecimal W aveform data is created using the 0 – 9 and A – F numeric keys. When the cardinal numbers are changed to Hexadeci- mal , numeric keys and unit keys are allocated to A – F . Real The data is input, as with regular number input, by pressing numeric keys, then pressing the ENTER key to enter t[...]

  • Page 253

    EDIT Menu A WG2021 User Manual 3 Ć135 W aveform data can be edited at the waveform point, regardless of what item is selected in the bottom menu. Move the line cursor to the data point to be edited. 1. Press the CURSOR button on the front panel to move the line cursor . 2. When the CURSOR button is pressed, the active line cursor is toggled betwee[...]

  • Page 254

    EDIT Menu 3 Ć136 A WG2021 User Manual Use these functions cut, copy to the buffer , and paste to any other time or point value within the waveform data area between the upper and lower line cursors. The functions for these items are the same as for the corresponding items in waveform editor graphic display . See Page 3 -43 through 3–46. Insertin[...]

  • Page 255

    EDIT Menu A WG2021 User Manual 3 Ć137 Equation Editor Use the equation editor to edit files with the extension of .EQU . Equation file data takes the form of mathematical equations. An equation program file can have up to 100 lines. An equation file is compiled to create a waveform file and to output the waveform. Figure 3 -96 shows an example of [...]

  • Page 256

    EDIT Menu 3 Ć138 A WG2021 User Manual Use Exit/Write in the bottom menu to save the file to the internal memory of the A WG2021 and exit from the editor depending on the selected side menu item. The same procedure is used to save the file and exit from the equation editor as for the waveform editor . See “Saving Files and Exiting the Editor” i[...]

  • Page 257

    EDIT Menu A WG2021 User Manual 3 Ć139 The following list shows the functions available for each menu item and the page on which you can find a description of that function. T able 3Ć6: Menu Functions Menu Function Page Operation Editing functions 3 Ć156 Cut Cutting a line 3 Ć156 Co py to Buffer Co py in g a line 3 Ć156 Copy to Buffer Paste fro[...]

  • Page 258

    EDIT Menu 3 Ć140 A WG2021 User Manual Figure 3 -98 shows the general equation editor display . A description for each callout follows. 1 3 2 4 5 Figure 3 Ć98: Equation Editor CRT Display (1) File Name             [...]

  • Page 259

    EDIT Menu A WG2021 User Manual 3 Ć141 (5) Button Operation                 CURSOR    [...]

  • Page 260

    EDIT Menu 3 Ć142 A WG2021 User Manual Select Operation in the bottom menu to create or edit an equation file. When this item is selected, the time range can be designated with the component menu and the equation can be created. Figure 3 -99 shows a menu with Operation in the bottom menu selected. Figure 3 Ć99: Menu With Operation Selected Specify[...]

  • Page 261

    EDIT Menu A WG2021 User Manual 3 Ć143 Specification of subsequent time ranges use the component menu range( item. The clock frequency is obtained from the total time (period) set with range() and the waveform point count set with Setting , thus: Clock freque ncy  Wave form point count Equation period In this example, you will create a sine wave[...]

  • Page 262

    EDIT Menu 3 Ć144 A WG2021 User Manual  V ALUE/ENTER buttons. After the CURSOR button has been pressed, pressing the V ALUE or ENTER button makes it possible to select an item from the component menu. In this state, pressing the V ALUE or ENTER button again inserts the items selected from the component menu into the equation list. At this time, [...]

  • Page 263

    EDIT Menu A WG2021 User Manual 3 Ć145 (right) parenthesis. When there are two arguments – for example, range , max , min – they are separated with a , (comma).  V ariables. Here are the variables that can be used in an equation. t : T ime from the head of that range() statement. x : V ariable taking on a value from 0.0 to 1.0 within that ra[...]

  • Page 264

    EDIT Menu 3 Ć146 A WG2021 User Manual k The k0–k9 can be specified; these are constants that may be used in equations. Specifying a new value for the same k# replaces the old value with the new one. If no constant is defined for k , this value will be automati- cally set to 0. = Equals sign. = is used with k constants. Example: k0=2*pi ↵ Ends [...]

  • Page 265

    EDIT Menu A WG2021 User Manual 3 Ć147 Example: range(0,100 m s) sin(2*pi*1e4*t) Figure 3 Ć102: T rigonometric Function W aveform Expressed With V ariable t exp( , log( , ln( Exponential function, common log function, natural log function. The log and ln arguments must be positive. Example: range(0,50 m s) 1–exp(–5*x) range(50 m s,100 m s) exp[...]

  • Page 266

    EDIT Menu 3 Ć148 A WG2021 User Manual Example: range(0,100 m s) log(10*(x+0.1)) Figure 3 Ć104: Equation Using log( Example: range(0,100 m s) ln(2*(x+0.2)) Figure 3 Ć105: Equation Using ln([...]

  • Page 267

    EDIT Menu A WG2021 User Manual 3 Ć149 sqrt( The square root; the argument must be a positive value. Example: range(0,100 m s) sqrt(sin(pi*x)) Figure 3 Ć106: Equation Using sqrt( abs( The absolute value. Example: range(0,100 m s) abs(sin(2*pi*x)) Figure 3 Ć107: Equation Using abs([...]

  • Page 268

    EDIT Menu 3 Ć150 A WG2021 User Manual int( T runcates the fraction to obtain the integer . Example: range(0,100 m s) int(5*sin(2*pi*x))/5 Figure 3 Ć108: Equation Using int( round( Rounds off the fraction to obtain the integer . Example: range(0,100 m s) round(5*sin(2*pi*x))/5 Figure 3 Ć109: Equation Using round([...]

  • Page 269

    EDIT Menu A WG2021 User Manual 3 Ć151 norm( Normalizes the range specified with range() and scales the amplitude values so that the maximum absolute value is 1.0 (i.e. a value of +1.0 or –1.0). The norm() statement comprises an entire line. Example: range(0,100 m s) sin(2*pi*x)+rnd()/10 norm() Figure 3 Ć1 10: Equation Using norm([...]

  • Page 270

    EDIT Menu 3 Ć152 A WG2021 User Manual max( T akes the larger of two values. min( T akes the smaller of two values. Example: range(0,100 m s) sin(2*pi*x) range(0,50 m s) min(v ,0.5) range(50 m s,100 m s) max(v ,–0.5) Figure 3 Ć1 1 1: Equation Using max( and min([...]

  • Page 271

    EDIT Menu A WG2021 User Manual 3 Ć153 rnd ( integer from 1 to 16,777,215) When an argument is specified, generates a random number sequence using that argument as the initial value. If the ar gument is omitted, 1 is used. Example: range(0,100 m s) rnd(2)/3 Figure 3 Ć1 12: Equation Using rnd( See “Random (rnd) Function” in Appendix F for a dis[...]

  • Page 272

    EDIT Menu 3 Ć154 A WG2021 User Manual Figure 3 Ć1 13: W aveform Before Calculation Figure 3 Ć1 14: W aveform After Differentiation Using diff( See “Differentiation” in Appendix F for a discussion of the algorithms for diff functions.[...]

  • Page 273

    EDIT Menu A WG2021 User Manual 3 Ć155 integ( Integrates the function over the range specified with range() . Specified with integ() . The integ() comprises an entire line. After integ() , specify normalization ( norm() ) as necessary . Example: range(0,33 m s) –0.5 range(33 m s,66 m s) 0.5 range(66 m s,100 m s) –0.5 range(0,100 m s) integ() no[...]

  • Page 274

    EDIT Menu 3 Ć156 A WG2021 User Manual When you select Operation in the bottom menu, the following items appear in the side menu: Cut Line Copy to Buffer Paste from Buffer W ord T able Insert Other Equation Cutting a Line. Use Cut Line to cut out a line in the equation list. 1. Select Operation from the bottom menu. 2. Pressing the front panel CURS[...]

  • Page 275

    EDIT Menu A WG2021 User Manual 3 Ć157 Insert Other Equation File. Use Insert Other Equation to select an equation file from internal memory (see Figure 3 -1 16). An equation file is inserted from this list into the equation list. Figure 3 Ć1 16: Menu Displayed When Insert Other Equation is Selected 1. Use the same procedure as described in Cuttin[...]

  • Page 276

    EDIT Menu 3 Ć158 A WG2021 User Manual Figure 3 Ć1 17: Setting W aveform Point Count 1. Select Setting from the bottom menu. 2. Use the numeric keys or the general purpose knob to set the number of waveform points. The default value for the number of waveform points is 1000. The waveform point size can be set to any value between 1 and 32,768. How[...]

  • Page 277

    EDIT Menu A WG2021 User Manual 3 Ć159 Use Compile to convert the assembled equation into waveform data and to create a waveform file. This waveform file is given the same name as the equation file it was compiled from. Here is the procedure for compiling the equation to make a waveform file. 1. Select Compile from the bottom menu. The equation is [...]

  • Page 278

    EDIT Menu 3 Ć160 A WG2021 User Manual time domain with the syntactical error . Correct the error as instructed by the message, and then compile again. The compiled waveform file contains the settings for the number of waveform points (set with Setting) and the clock frequency (obtained from the total time set with the range item.) Other output par[...]

  • Page 279

    EDIT Menu A WG2021 User Manual 3 Ć161 Sequence Editor Use the sequence editor to edit files with the extension of .SEQ . Sequence files assemble a number of waveforms or sequence files in order . The file data contains waveform file names in sequence, their repetition counts, and the sequence waveform output parameters. Sequences may be up to appr[...]

  • Page 280

    EDIT Menu 3 Ć162 A WG2021 User Manual 1. Press the EDIT button in the MENU column. The initial EDIT menu will appear . 2. Select Edit or New Sequence from the side menu. Edit Used to select and edit an existing sequence file ( .SEQ ) New Sequence Used to create a new sequence file The sequence editor screen will appear . Use Exit/Write in the bott[...]

  • Page 281

    EDIT Menu A WG2021 User Manual 3 Ć163 The following list shows the functions available for each menu item and the page on which you can find a description of that function. T able 3Ć8: Menu Functions Menu Function Page Operation Editing functions 3 Ć167 Cut Cutting a line 3 Ć167 Copy to Buffer Copying a line 3 Ć167 Paste from Buffer Pasting a [...]

  • Page 282

    EDIT Menu 3 Ć164 A WG2021 User Manual Figure 3 -121 shows the general sequence editor display . A description for each callout follows. 1 3 2 6 4 5 Figure 3 Ć121: Sequence Editor CRT Display (1) File Name The name of the sequence file being edited; if the name has not been set yet, ********.SEQ is displayed. (2) Line The line number displayed inv[...]

  • Page 283

    EDIT Menu A WG2021 User Manual 3 Ć165 (5) Catalog                     [...]

  • Page 284

    EDIT Menu 3 Ć166 A WG2021 User Manual Select Operation in the bottom menu to create or edit a sequence file. After you have done this, you can select a waveform or sequence file from Catalog and then put together a sequence and set the number of repetitions for that file to create the sequence file. Creating a Sequence File. In this example you wi[...]

  • Page 285

    EDIT Menu A WG2021 User Manual 3 Ć167 When you select Operation in the bottom menu, the following items appear in the side menu: Cut Line Copy to Buffer Paste from Buffer Show Catalog Entry Insert Contents of Sequence (Appears when a sequence file has been selected with Catalog ) Cutting a Line. Use Cut Line from the side menu to cut out a line in[...]

  • Page 286

    EDIT Menu 3 Ć168 A WG2021 User Manual Catalog File W aveform Display . Use this item to observe the waveforms of the files being assembled into the sequence. 1. Select Operation from the bottom menu. 2. Use the general purpose knob to select the file you want to observe from the Catalog . 3. Select Show Catalog Entry from the side menu. The wavefo[...]

  • Page 287

    EDIT Menu A WG2021 User Manual 3 Ć169  . When cr eating a sequence file you cannot use sour ce–sequence files that contain other sequence files. If you try to do this, a message will be displayed. In this case, you can use the Insert Contents of Sequence item to develop the sequence and insert it. 1. Select Operation from the bottom [...]

  • Page 288

    EDIT Menu 3 Ć170 A WG2021 User Manual Figure 3 Ć123: Example of CRT Display When Show Overview is Selected 2. After observing the waveform, select Continue Operation from the side menu to return to the sequence editor .[...]

  • Page 289

    EDIT Menu A WG2021 User Manual 3 Ć171 Autostep Editor Use the autostep editor to edit files with the extension of .AST . Autostep files are created by programming waveforms or sequence files. Each time a trigger signal is received, the waveform changes to the waveform for the next step, in accordance with the program. Each waveform or sequence fil[...]

  • Page 290

    EDIT Menu 3 Ć172 A WG2021 User Manual                   Figure 3 Ć124: Autostep File Data and Output W aveforms 1. Press the EDIT button in the MENU column. The initial EDIT menu will appear . 2. Select More from the si[...]

  • Page 291

    EDIT Menu A WG2021 User Manual 3 Ć173 The Autostep Editor menu has the structure shown in Figure 3 -125. Operation Cut Step Copy Step Paste Step Insert New Step Swap Channel Contents... Autostep Editor Exit without Writing Exit/Write Write and Exit Write Undo Append New Step Insert Current SETUP Jump Step No. T o First Step T o Last Step Internal [...]

  • Page 292

    EDIT Menu 3 Ć174 A WG2021 User Manual The following list shows the functions available for each menu item and the page on which you can find a description of that function. T able 3Ć10: Menu Functions Menu Function Page Operation Editing functions 3 Ć186 Cut Step CS Cutting a step Ci 3 Ć186 3 186 Copy Step Paste Step Copying a step Pasting a st[...]

  • Page 293

    EDIT Menu A WG2021 User Manual 3 Ć175 Figure 3 -126 shows the general autostep editor display . A description for each callout follows. 1 3 2 4 5 6 Figure 3 Ć126: Autostep Editor CRT Display (1) File Name The name of the autostep file being edited; if the name has not been set yet, ********.AST is displayed. (2) Step No. Indicates the step number[...]

  • Page 294

    EDIT Menu 3 Ć176 A WG2021 User Manual (5) Clock Frequency and CH1 Operation Indicates the clock frequency and CH1 operation mode that have been saved to the CH1 file. These output parameters may be changed. (6) Button Operation This area shows how the front panel buttons operate in this menu. Output parameters can be selected by turning the genera[...]

  • Page 295

    EDIT Menu A WG2021 User Manual 3 Ć177 Select Operation from the bottom menu to create or edit autostep programs. Up to 100 steps can be programmed. If blank steps exist in the autostep program that has been created, these steps will be deleted when you quit the editor . If blank steps exist in CH1 in an autostep file created on an instrument with [...]

  • Page 296

    EDIT Menu 3 Ć178 A WG2021 User Manual 3. Press the V ALUE button on the front panel. A list of files that can be set will appear . Figure 3 Ć128: File Selection List 4. Using the general purpose knob, select the desired file. 5. If you want to check the waveform of the selected file, select Show Catalog Entry from the side menu. Figure 3 Ć129: S[...]

  • Page 297

    EDIT Menu A WG2021 User Manual 3 Ć179 The waveform for that file will appear along with the waveform point size, the clock frequency and the voltage value. 6. Select Continue from the sub-menu. The menu shown before you selected Show Catalog Entry will reappear . 7. Select Set from the side menu. The selected file will be inserted and the output p[...]

  • Page 298

    EDIT Menu 3 Ć180 A WG2021 User Manual T o add a step: 8. Select More 1 of 2 from the side menu and then select Append New Step . The instrument will proceed to Step 2. See “Adding a Step” in this section. Repeat this procedure to create the program. Changing Parameters. It is possible to change the output parameters for a file that has been se[...]

  • Page 299

    EDIT Menu A WG2021 User Manual 3 Ć181  Clock Settings. Select using the general purpose knob. Then press the V ALUE button on the front panel. The menu shown in Figure 3 -131 will appear . Figure 3 Ć131: Clock Setting Menu Set the clock source and the clock frequency by selecting the appropriate items in the side menu. The settings for clock s[...]

  • Page 300

    EDIT Menu 3 Ć182 A WG2021 User Manual clock source and clock frequency will be updated to the values you have set.  CH1 Operation Settings. Select using the general purpose knob. Then press the V ALUE button on the front panel. The menu shown in Figure 3 -132 will appear . Figure 3 Ć132: CH1 Operation Setting Menu Using the general purpose kno[...]

  • Page 301

    EDIT Menu A WG2021 User Manual 3 Ć183  Filter Settings. Using the general purpose knob, select the for the channel that you want to change and then press the V ALUE button on the front panel. The menu shown in Figure 3 -133 will appear . Figure 3 Ć133: Filter Setting Menu Using the general purpose knob, select the type of filter . After select[...]

  • Page 302

    EDIT Menu 3 Ć184 A WG2021 User Manual  Amplitude Settings. Using the general purpose knob, select the for the channel that you want to change and then press the V ALUE button on the front panel. The menu shown in Figure 3 -134 will appear . Figure 3 Ć134: Amplitude Setting Menu Select the appropriate item in the side menu and set the amplitude[...]

  • Page 303

    EDIT Menu A WG2021 User Manual 3 Ć185  Offset Settings. Using the general purpose knob, select the for the channel that you want to change and then press the V ALUE button on the front panel. The menu shown in Figure 3 -135 will appear . Figure 3 Ć135: Offset Setting Menu Select the appropriate item in the side menu and set the offset. Offset [...]

  • Page 304

    EDIT Menu 3 Ć186 A WG2021 User Manual When you select Operation in the bottom menu, the following items appear in the side menu: Cut Step Copy Step Paste Step Insert New Step Append New Step Insert Current Setup Swap Channel Contents... Cutting a Step. Use Cut Step if you wish to delete a step in the autostep file that you have programmed. 1. Sele[...]

  • Page 305

    EDIT Menu A WG2021 User Manual 3 Ć187 Adding a Step. Use Insert New Step and Append New Step from the side menu when you wish to add a step to an autostep file being created. Insert New Step Used to insert a step at the current step number . For example, suppose the current step number is Step 2 of 3 . Selecting Insert New Step at this point will [...]

  • Page 306

    EDIT Menu 3 Ć188 A WG2021 User Manual 6. Press Range in the sub-menu and select Current Step or All Steps . Current step Swaps only the contents of the current step. All Steps Swaps the contents of all steps. 7. Select Execute in the sub-menu. Data will be exchanged between the designated steps in the designated channels. Use Jump in the bottom me[...]

  • Page 307

    EDIT Menu A WG2021 User Manual 3 Ć189 Convolution W aveform Editor (Option 09) On instruments with Option 09 installed, high-speed convolution and correlation can be performed for up to 32,000 words of waveform data in existing waveform files (those bearing the extender .WFM ). The number of points in the waveform after calculation will be the sum[...]

  • Page 308

    EDIT Menu 3 Ć190 A WG2021 User Manual When you select Exit/Write from the bottom menu, depending on what you have selected in the side menu, a file name will be assigned to the calculated result and the file will be saved to internal memory , after which the editor will close. When you quit the editor , the initial EDIT menu will reappear . The sa[...]

  • Page 309

    EDIT Menu A WG2021 User Manual 3 Ć191 Figure 3 -137 shows the general convolution waveform editor display . 1 2 3 Figure 3 Ć137: Convolution W aveform Editor CRT Display (1) Source Waveform1 Display Area          [...]

  • Page 310

    EDIT Menu 3 Ć192 A WG2021 User Manual In this example, you will select a waveform file for operation. 1. Select W aveform from the bottom menu. 2. Select W aveform1 from the side menu. 3. Using the general purpose knob, select the waveform file for operation from the Select W aveform list and then select O.K. The waveform you have selected will be[...]

  • Page 311

    EDIT Menu A WG2021 User Manual 3 Ć193 When you select Operation in the bottom menu, convolution or correlation will be performed. If Differential has been selected for the Math type item, the calculated result will be differentiated. 1. Select Operation from the bottom menu. 2. Press Func type in the side menu and select either Convolution or Corr[...]

  • Page 312

    EDIT Menu 3 Ć194 A WG2021 User Manual Figure 3 Ć140: Sample Correlation[...]

  • Page 313

    EDIT Menu A WG2021 User Manual 3 Ć195 FFT Editor (Option 09) On instruments with Option 09 installed, existing waveform files up to 16,000 waveform points with the extension .WFM can be edited in the frequency domain. When the editor is started, Fast Fourier transformation occurs automati- cally and the data is transformed into the frequency domai[...]

  • Page 314

    EDIT Menu 3 Ć196 A WG2021 User Manual Figure 3 Ć141: FFT Window Selection Menu 5. Using the general purpose knob, select the window function. When you enter the FFT editor , you must select the window function. This instrument has the following six FFT windows. Rectangle Hanning Hamming Blackman-Harris Blackman T riangle For repetitive waveforms [...]

  • Page 315

    EDIT Menu A WG2021 User Manual 3 Ć197 Select Exit/Write from the bottom menu. Then select from the side menu to save the edited file to the internal memory of the A WG2021 and exit from the editor . When this is done, the frequency domain data is converted into time domain data and saved as a waveform file. The same procedure is used to save the f[...]

  • Page 316

    EDIT Menu 3 Ć198 A WG2021 User Manual The following list shows the functions available for each menu item and the page on which you can find a description of that function. T able 3Ć12: Menu Functions Menu Function Page Select Window Selecting a window 3 Ć195 Operation Editing in the frequency domain 3 Ć200 Right peak, Left peak Draw ... Search[...]

  • Page 317

    EDIT Menu A WG2021 User Manual 3 Ć199 Figure 3 -143 shows the general FFT editor display . A description for each callout follows. 1 5 6 9 3 2 4 7 8 Figure 3 Ć143: FFT Editor CRT Display (1) File Name           (2)ĂFreq1:[...]

  • Page 318

    EDIT Menu 3 Ć200 A WG2021 User Manual (7) Left vertical bar cursor                 ?[...]

  • Page 319

    EDIT Menu A WG2021 User Manual 3 Ć201 3. Press the V ALUE button on the front panel and select Magnitude . The knob icon is displayed on the Magnitude side. 4. Using the general purpose knob or the numeric keys, change the magnitude. 5. T o change the magnitude for another frequency , press the CURSOR button on the front panel, and use the general[...]

  • Page 320

    EDIT Menu 3 Ć202 A WG2021 User Manual                 Figure 3 -144 shows an example of the screen with the Draw ... item selected. F[...]

  • Page 321

    EDIT Menu A WG2021 User Manual  3. Press Draw Area in the sub-menu and select Mag (magnitude) or Phase (phase). 4. Press the V ALUE button on the front panel. Using the general purpose knob, move the point cursor to the location of the new point. Pressing the V ALUE button will toggle the direction of movement from horizontal ( X [...]

  • Page 322

    EDIT Menu 3 Ć204 A WG2021 User Manual Figure 3 Ć145: Drawing a Magnitude 9. T o cancel the execution of a draw operation, select Undo from the bottom menu. The screen will revert to the waveform before Execute was selected.  . When you quit and once again enter the waveform editor , the points you have drawn will disappear . 10. Selec[...]

  • Page 323

    EDIT Menu A WG2021 User Manual 3 Ć205 Figure 3 Ć146: Magnified Signal Display In the scroll indicator at the top of the screen, the section of the signal being displayed on the screen is displayed inverted. Y ou can scroll through the frequency domain outside the screen by turning the general purpose knob. When Filter is selected from the bottom [...]

  • Page 324

    EDIT Menu 3 Ć206 A WG2021 User Manual Figure 3 Ć147: Low Pass Filter Figure 3 Ć148: High Pass Filter Figure 3 Ć149: Band Pass Filter[...]

  • Page 325

    EDIT Menu A WG2021 User Manual 3 Ć207 Figure 3 Ć150: Band Cut Filter The procedure below applies the filters to the signal. 1. Select Filter from the bottom menu. 2. Select Low-Pass , High-Pass , Band-Pass , or Band-Elim from the side menu. 3. Press the V ALUE button on the front panel and select the filter frequency field. 4. Using the general p[...]

  • Page 326

    EDIT Menu 3 Ć208 A WG2021 User Manual Cutting Extraneous Frequency Components. Here is the procedure for using the Cut under item to remove the extraneous frequency component. 1. Select Limiter from the bottom menu. 2. Press the CURSOR button on the front panel to select the left/right vertical bar cursor . Using the numeric keys or the general pu[...]

  • Page 327

    EDIT Menu A WG2021 User Manual 3 Ć209     DC Figure 3 Ć151: Fundamental, Odd, and Even Components Shifting Magnitudes. Here is the procedure for using the Shift Mag item to shift the magnitude to the limit level. 1. Select Limiter from the bottom menu. 2. Press the CURSOR [...]

  • Page 328

    EDIT Menu 3 Ć210 A WG2021 User Manual[...]

  • Page 329

    A WG2021 User Manual 3 Ć21 1 SETUP Menu General Description The SETUP menu is used to set a variety of output parameters during actual output of the waveforms and sequence waveforms that have been created with the editors. The menu can display output parameter values and selected items in both text form and as a graphic (in other words, with items[...]

  • Page 330

    SETUP Menu 3 Ć212 A WG2021 User Manual SETUP Menu Structure Figure 3 -152 shows the configuration of the SETUP menu. SETUP Display Graphics T ext W aveform Sequence Channel Selection File Setting Filter Channel Selection Through 50 MHz 20 MHz 5 MHz CH1 Operation Normal AM Add External AM Amplitude Channel Selection Amplitude Setting T rack Off CH1[...]

  • Page 331

    SETUP Menu A WG2021 User Manual 3 Ć213 Menu Functions The following table shows the function of each menu item and the page to refer to for a more detailed explanation. T able 3Ć13: Menu Functions Menu Function Page  ""  !#    #& ' ?[...]

  • Page 332

    SETUP Menu 3 Ć214 A WG2021 User Manual SETUP Menu Display Figure 3 -153 shows the graphic mode for SETUP menu display . A description for each callout follows. 1 3 2 5 6 7 8 2 4 Figure 3 Ć153: SETUP Menu (Graphic Mode) (1) Display Area for CH1 W aveform/Sequence W aveform &" # &%! ! " $?[...]

  • Page 333

    SETUP Menu A WG2021 User Manual 3 Ć215 (7) CH1 Output Parameter Status The output status of the waveform or sequence waveform is shown as follows: Period : Period Points : Number of data points Max : Upper voltage for full scale vertical axis when terminated with 50 W Min : Lower voltage for full scale vertical axis when terminated with 50 W The p[...]

  • Page 334

    SETUP Menu 3 Ć216 A WG2021 User Manual Selecting the Display Format for the SETUP Menu The SETUP menu can be displayed in either text or graphic form. Graphics This is the mode normally used. This format displays the output parameters connected in the form of a circuit. Selected parameters are indicated by a inverted display around them; these val[...]

  • Page 335

    SETUP Menu A WG2021 User Manual 3 Ć217 Selecting Output Parameter Fields There are three ways to select a parameter . 1. Press the bottom button for the item to be set. Then select the channel in the side menu and select the field. 2. Press the bottom button for the item. Then press the bottom button again; each time the button is pressed, the CUR[...]

  • Page 336

    SETUP Menu 3 Ć218 A WG2021 User Manual T o select a waveform or sequence file: 1. Select W aveform Sequence from the bottom menu. The waveform display area will be highlighted on the screen. 2. Select the channel for setting in the side menu. 3. T urn the general purpose knob to open the file list. Use the general purpose knob to select the desire[...]

  • Page 337

    SETUP Menu A WG2021 User Manual 3 Ć219 When a sequence waveform is output, the output parameters for that sequence file are used.  . When a sequence file is selected, and if the waveform or sequence file making up the sequence is not in internal memory , the waveform display ar ea is blank and the output switch is off. In this case, yo[...]

  • Page 338

    SETUP Menu  A WG2021 User Manual 2. Press the Source button in the side menu and set it to Internal . The clock icon shown below will be displayed on the screen. Since the clock frequency for CH2 depends on the clock frequency for CH1, set the clock frequency for CH1 first. 3. Use the numeric keys or general purpose knob to set th[...]

  • Page 339

    SETUP Menu A WG2021 User Manual 3 Ć221 T o set the Source to External: 6. Press the Source button in the side menu and select External . The clock icon shown below will be displayed on the screen. The CH1 and CH2 clocks are controlled with the external clock input from the CLOCK IN connector on the rear panel. The external clock frequency that can[...]

  • Page 340

    SETUP Menu 3 Ć222 A WG2021 User Manual !   !       ! !       "    ! ! "   " [...]

  • Page 341

    SETUP Menu A WG2021 User Manual 3 Ć223             ! ! "       "  !     "[...]

  • Page 342

    SETUP Menu 3 Ć224 A WG2021 User Manual !   !       ! !       "   ! ! "  #  " ?[...]

  • Page 343

    SETUP Menu A WG2021 User Manual 3 Ć225 Setting Filter The filters selections are: 50 , 20 , 5 , 1 MHz and Through (no filter). T o set Filter , perform these steps: 1. Select Filter from the bottom menu. The filter icon will be highlighted on the screen. 2. Select the channel from the side menu. 3. T urn the general purpose knob to select the desi[...]

  • Page 344

    SETUP Menu 3 Ć226 A WG2021 User Manual Setting the amplitude and offset determines Max and Min values shown to the left of the waveform. In the example shown in Figure 3 -159, the Max and Min values are as follows:    W  W 1. Select Amplitude from the bottom menu. The[...]

  • Page 345

    SETUP Menu A WG2021 User Manual  1. Select Amplitude from the bottom menu. 2. Select CH2 from the side menu. 3. Press the T rack key in the side menu and select CH1 . The linkage setting will appear below the CH2 amplitude icon. 4. Select CH1 from the side menu. 5. T urn the general purpose knob to change the CH1 amplitude. Check [...]

  • Page 346

    SETUP Menu  A WG2021 User Manual[...]

  • Page 347

    A WG2021 User Manual 3 Ć229 MODE Menu General Description Press the MODE button in the MENU column to display the MODE menu. The MODE menu is used to set the operating mode of the waveform output with the conditions set in the SETUP menu. This menu enables you to perform the following functions:  Setting waveform or sequence waveform output tri[...]

  • Page 348

    MODE Menu 3 Ć230 A WG2021 User Manual MODE Menu Structure Figure 3 -160 shows the configuration of the MODE menu. MODE Cont T riggered Positive Negative Slope Level STOP W aveform Advance Slope Level STOP Positive Negative Slope Level STOP Positive Negative Autostep Select Autostep File Sync Start End MENU Button Bottom Menu Side Menu Select Item [...]

  • Page 349

    MODE Menu A WG2021 User Manual 3 Ć231 Menu Functions The following table describes the function of each of the menu items and gives the number of the page on which you can find a more detailed explanation of that item. T able 3Ć15: Menu Functions Menu Function Page Cont Setting the operatiang mode 3 Ć233 T riggered 3 Ć233 Gated 3 Ć234 Burst 3 [...]

  • Page 350

    MODE Menu 3 Ć232 A WG2021 User Manual MODE Menu Display Figure 3 -161 shows the general display for the MODE menu. 1 2 3 4 5 Figure 3 Ć161: MODE Menu CRT Display (1) Channel Display Shows the channel for the waveform/sequence file names and lists. (2) W aveform/Sequence The name of the waveform or sequence file being output is shown for each chan[...]

  • Page 351

    MODE Menu A WG2021 User Manual 3 Ć233 (4) Operating Mode Status       MODE         Cont  T riggered  Gated  Burst  W aveform Advan[...]

  • Page 352

    MODE Menu 3 Ć234 A WG2021 User Manual Impedance STOP The Slope , Level and Impedance items are used to set the trigger conditions for the external trigger signal. Figure 3 -162 shows the output waveform for an external trigger signal.       Figure 3 [...]

  • Page 353

    MODE Menu A WG2021 User Manual 3 Ć235 Impedance STOP The Polarity , Level and Impedance items are used to set the gate conditions for the external gate signal. Figure 3 -163 shows the output waveform for an external gate signal.      Figure 3 Ć163: Output W [...]

  • Page 354

    MODE Menu 3 Ć236 A WG2021 User Manual         Figure 3 Ć164: Output W aveform for External T rigger Signal in Burst Mode Setting Burst Count. Burst Count sets the number of repetitions of the waveform or sequen[...]

  • Page 355

    MODE Menu A WG2021 User Manual 3 Ć237 applied to the TRIGGER INPUT connector or by pressing the front panel MANUAL button. In this mode, the first waveform is output over and over again for each channel when a trigger signal is received. When the next trigger signal is received, output of the first waveform stops after the end point of that wavefo[...]

  • Page 356

    MODE Menu 3 Ć238 A WG2021 User Manual In W aveform Advance mode not only sequence files, but also waveform files can be used. In this case when the trigger is received, the file’ s waveform is output continuously . When the sub sequences in a sequence file are output, they are expanded individually in the waveform memory . In W aveform Advance m[...]

  • Page 357

    MODE Menu A WG2021 User Manual 3 Ć239 in progress, output stops after the end point of that waveform and then the waveform for the next step is output. Figure 3 -166 shows the output waveform for an external trigger signal. T able 3Ć17: Autostep File Step File Name Output Conditions Waveform    ?[...]

  • Page 358

    MODE Menu 3 Ć240 A WG2021 User Manual Figure 3 Ć167: Autostep File List 3. Use the general purpose knob to select the file to start from the displayed list of autostep files. 4. After selecting the file, to enter the selection, select O.K. from the sub- menu. T o cancel the file selection, select Cancel from the sub-menu. When you select O.K. , t[...]

  • Page 359

    MODE Menu A WG2021 User Manual 3 Ć241 Setting T rigger Parameters for an External T rigger (Gate) The external trigger (gate) signal is input from the TRIGGER INPUT connector on the front panel. The maximum input voltage is ± 10 V into a 1 M W input impedance, and the maximum input voltage is 5 V RMS into a 50 W input impedance. Use the Slope or [...]

  • Page 360

    MODE Menu 3 Ć242 A WG2021 User Manual  Impedance. This menu item sets the external trigger (gate) source input impedance to either 50 W or 1 M W . Press the Impedance button in the side menu to select this item. Setting Sync Signal Use the Sync menu item to select the timing with which the sync signal is generated to either the Start or End of [...]

  • Page 361

    A WG2021 User Manual 3 Ć243 LOAD/SA VE Menu General Description Press the LOAD/SA VE button in the MENU column to display the LOAD or SA VE menu. Press the Load or Save button in the bottom menu to display the desired menu. Use the LOAD menu to load files into internal (random access) memory from the instrument’ s internal non-volatile RAM memor[...]

  • Page 362

    LOAD/SA VE Menu 3 Ć244 A WG2021 User Manual Memory Capacity When you exit from the EDIT menu, the files you created with the editors are saved into the A WG2021 internal memory (RAM). Up to 400 files (depending on size) can be saved in the internal memory .  . The data in this instrument’ s internal memory is lost when the power is s[...]

  • Page 363

    LOAD/SA VE Menu A WG2021 User Manual 3 Ć245 LOAD/SA VE Menu Structure Figure 3 -170 shows the configuration of the LOAD/SA VE menu. LOAD/SA VE NVRam Load Load Load All Save Device from Disk from NVRam Off Auto Load Save Save All GPIB Load Load Load Without Preamble Disk Load Load All Change Directory Save All Change Directory Save Save Load Save a[...]

  • Page 364

    LOAD/SA VE Menu 3 Ć246 A WG2021 User Manual Menu Functions The following table describes the function of each menu item and gives the page number where you can find a more detailed explanation of that item. T able 3Ć18: Menu Functions Menu Function Page "    " % [...]

  • Page 365

    LOAD/SA VE Menu A WG2021 User Manual 3 Ć247 LOAD Menu Display Figure 3 -171 shows the general display for the LOAD menu. A description for each callout follows. 1 3 2 Figure 3 Ć171: LOAD Menu CRT Screen Display[...]

  • Page 366

    LOAD/SA VE Menu 3 Ć248 A WG2021 User Manual (1) Internal memory file list This is a list of the files currently loaded into internal memory . The list shows the file names, the file types, file sizes (in bytes), the date and time the file was created, and a comment. The space remaining in internal memory , into which files can be loaded, is displa[...]

  • Page 367

    LOAD/SA VE Menu A WG2021 User Manual 3 Ć249 Selecting the Device Select Device to select the source from which files are loaded into the A WG2021 internal memory and the destination to which files are saved from internal memory . Y ou may select Disk , NVRam or GPIB . 1. Select Device from the bottom menu. 2. Select Disk , NVRam or GPIB from the s[...]

  • Page 368

    LOAD/SA VE Menu 3 Ć250 A WG2021 User Manual T able 3Ć19: Supported Instruments Manufacturer Model T ektronix TDS Series Digital Storage Oscilloscope TDS300 Series, TDS400 Series, TDS500 [A] Series, TDS600 [A] Series 2400 Series Digital Storage Oscilloscope 2430 [A], 2432, 2440 2200 Series Digital Storage Oscilloscope 2212, 2221A, 2224, 2232 1 1K [...]

  • Page 369

    LOAD/SA VE Menu A WG2021 User Manual 3 Ć251 Loading Files from Mass Memory into Internal Memory If Disk or NVRam has been selected for Device , the LOAD menu appears when the Load item in the bottom menu is selected. See Figure 3 -172. The internal memory file list is displayed on the upper screen and the list of files saved onto mass memory is di[...]

  • Page 370

    LOAD/SA VE Menu  A WG2021 User Manual 4. Use the general purpose knob to select files to load into internal memory from the mass memory file list. 5. Select Load from the side menu. The selected file is loaded into internal memory . When Load All is selected from the side menu, all the files in the specified mass memory (for a dis[...]

  • Page 371

    LOAD/SA VE Menu A WG2021 User Manual 3 Ć253 Saving Files from Internal Memory to Mass Memory If Disk or NV ram has been selected for Device , the SA VE menu appears when the Save item is selected from the bottom menu. See Figure 3 -173. As for the LOAD menu, the internal memory file list is displayed on the upper screen. From this list you select [...]

  • Page 372

    LOAD/SA VE Menu 3 Ć254 A WG2021 User Manual When Save All is selected from the side menu, all the files in the internal memory are saved to the specified mass memory .  . When Save or Save All is executed, and ther e is alr eady a file in the mass memory with the same name as a file to be saved, the system asks you if you want to r epl[...]

  • Page 373

    LOAD/SA VE Menu A WG2021 User Manual 3 Ć255 T ransferring W aveform Data Directly When GPIB has been selected for Device , waveform data can be transferred directly to the instrument from supported digital storage oscilloscopes, etc. through the GPIB interface. See T able 3-19 for a list of supported instruments. T o load a waveform file directly [...]

  • Page 374

    LOAD/SA VE Menu 3 Ć256 A WG2021 User Manual created with the name shown in the “ Loaded as ” column. Figure 3 -175 shows the GPIB Source list. Figure 3 Ć175: GPIB Source List 7. Choose Select Source Addr ess from the side menu and, using the general purpose knob, select the GPIB address for the instrument from which data is to be loaded. 8. S[...]

  • Page 375

    LOAD/SA VE Menu A WG2021 User Manual 3 Ć257 Figure 3 Ć176: List of Supported Models Made by Other Manufacturers  . Contact a T ektronix sales office in the event that waveform transfer is not possible fr om an instrument made by another manufactur er , due to an upgrade or other change. 3. Using the general purpose knob, select the in[...]

  • Page 376

    LOAD/SA VE Menu 3 Ć258 A WG2021 User Manual Auto Loading Use the side menu of the Auto Load to automatically load files from the mass memory into the internal memory when the instrument is switched on. 1. Select Auto Load from the bottom menu. 2. Select an item from the side menu. From Disk When the instrument is switched on, files are loaded auto[...]

  • Page 377

    LOAD/SA VE Menu A WG2021 User Manual 3 Ć259 Supported Floppy Disk Files T able 3-20 shows a list of file name extensions denoting the type of disk files that can be loaded to the internal memory of the A WG2021. T able 3Ć20: Supported Floppy Disk Files Extension Description Result of Load Operation .ISF W aveform data files saved in ISF format (I[...]

  • Page 378

    LOAD/SA VE Menu 3 Ć260 A WG2021 User Manual  . As with other files on the instrument, the Rename , Delete , Delete All , Lock and other operations can be performed for these files, and they ar e also subject to the Load All and Auto Load operations in the LOAD menu. If unexpected file formats or file contents are encountered when loadi[...]

  • Page 379

    A WG2021 User Manual 3 Ć261 UTILITY Menu General Description Press the MENU column UTILITY button to display the UTILITY menu. The bottom menu contains the Disk , NVRam , GPIB , RS232C , Date Time , Misc , and Diag/Cal items. Use these items to do the following: Disk Floppy disk format Operating files saved onto disks Disk directory creation and c[...]

  • Page 380

    UTILITY Menu 3 Ć262 A WG2021 User Manual UTILITY Menu Structure Figure 3 -177 shows the configuration of the UTILITY menu. MENU Button Bottom Menu Side Menu SubĆMenu Disk UTILITY Date Time Misc Display ... Config... Hardcopy ... Status... Diag/Cal Rename Delete Delete All Lock Change Directory Make Directory Format... NVRam Rename Delete Delete A[...]

  • Page 381

    UTILITY Menu A WG2021 User Manual 3 Ć263 Menu Functions The following table describes the function of each of the menu items and gives the number of the page on which you can find a more detailed explanation of that item. T able 3Ć21: Menu Functions Menu Function Page Disk Using the disk menu 3 Ć264 Rename Delete Delete All Lock Change Directory[...]

  • Page 382

    UTILITY Menu 3 Ć264 A WG2021 User Manual T able 3Ć21: Menu Functions (Cont.) Menu Page Function Config... Configuration 3 Ć284 Reset to Factory Secure Erase Memory Remote Port Factory settings Deleting data from memory Remote port settings 3 Ć284 3 Ć285 3 Ć285 Hardcopy ... Settings for hard copy output 3 Ć286 Format Port Selecting the format[...]

  • Page 383

    UTILITY Menu A WG2021 User Manual 3 Ć265 The side menu is made up of 2 pages. Select More to display the second page of the side menu. Floppy Disk Format. This instrument can format 2DD (double density) and 2HD (high density) disks in three different MS-DOS formats: IBM-PC format, NEC PC9800 series format, and T oshiba J3100 series format. Formatt[...]

  • Page 384

    UTILITY Menu 3 Ć266 A WG2021 User Manual 3. Select Format... from the second page of the side menu ( More 2 of 2 ). 4. The currently selected format will appear in the T ype item in the sub-menu. Select the correct format with the general purpose knob. The following formats can be selected for T ype : IBM-PC 2HD PC9800 2HD J3100 2HD IBM-PC 2DD PC9[...]

  • Page 385

    UTILITY Menu A WG2021 User Manual 3 Ć267 6. Select Go Back from the sub-menu. The system returns from the Format... current sub-menu to the previous side menu. 7. Pressing the eject button on the right side of the disk drive ejects the floppy disk. Handling Floppy Disks. 3.5 I floppy disks are easy to store and use. However , to prevent them from [...]

  • Page 386

    UTILITY Menu 3 Ć268 A WG2021 User Manual     Figure 3 Ć179: W rite Protect T ab on a Floppy Disk Creating and Changing Directories. When there are many files, it becomes difficult to manage them. Placing all files of the same type into separate directories makes it easier to man[...]

  • Page 387

    UTILITY Menu A WG2021 User Manual 3 Ć269  . A file hierar chy with multiple layers can be cr eated on the disk using up to 54 characters including the character . The shorter the dir ectory name, the deeper the levels that you can cr eate. When the dir ectory display becomes too lar ge for the display area window , the initial sectio[...]

  • Page 388

    UTILITY Menu 3 Ć270 A WG2021 User Manual Figure 3 Ć180: File and Directory Display in the Root Directory 2. Select More 1 of 2 , then Make Dir ectory from the side menu. The menu for naming the directory is displayed. 3. Use the general purpose knob to input a directory name of A WG2021 . See Figure 3 -181. The method for inputting the directory [...]

  • Page 389

    UTILITY Menu A WG2021 User Manual 3 Ć271 Figure 3 Ć181: Directory Name Input 4. After you have input the directory name, select O.K. from the sub-menu. The A WG2021 directory is created in the floppy disk. Example: Changing a Directory . 5. Select Change Directory from the side menu. 6. Use the general purpose knob to select the A WG2021 sub-dire[...]

  • Page 390

    UTILITY Menu 3 Ć272 A WG2021 User Manual 7. Select O.K. from the sub-menu. The current directory changes to the A WG2021 directory you just made and the directory display becomes Catalog:DiskA WG2021 . At this time, the A WG2021 directory is empty . See Figure 3 -183. Figure 3 Ć183: File List for a Newly Created Directory This completes the mov[...]

  • Page 391

    UTILITY Menu A WG2021 User Manual 3 Ć273 Locking and Unlocking a File. This menu item locks a file. When a file is locked, the file can neither be changed nor erased. It locks and unlocks a file the same as the Lock item in the EDIT menu. See Page 3 -1 1. Files saved to the internal non-volatile memory can be manipulated with this bottom menu. Whe[...]

  • Page 392

    UTILITY Menu 3 Ć274 A WG2021 User Manual Remote Interface The instrument’ s rear panel has two remote control interface ports: IEEE STD 488 (GPIB) and RS-232-C . (Note: There is no RS-232-C port when Option 04 has been installed.) A computer can be used to control the instrument remotely through these interfaces. The port is selected using the R[...]

  • Page 393

    UTILITY Menu A WG2021 User Manual 3 Ć275 Figure 3 Ć185: Menu Displayed When GPIB is Selected The instrument can be set to one of four operating modes: talk/listen, waveform transfer , talk only , or off-bus. However , you should be aware that talk only and waveform transfer modes are not compliant with IEEE 488.2-1987. T alk/Listen Select talk/li[...]

  • Page 394

    UTILITY Menu 3 Ć276 A WG2021 User Manual Actual waveform transfer is performed using the LOAD/SA VE menu. See Page 3 -255. T alk Only Select T alk Only from the side menu to output a hard copy of the waveform data. When the Port setting is GPIB [ UTILITY menu  Misc (bottom menu)  Hardcopy ... (side menu)  Port (sub-menu)], pressing the HA[...]

  • Page 395

    UTILITY Menu A WG2021 User Manual 3 Ć277 Figure 3 Ć186: Menu Displayed When RS232C is Selected Baudrate Sets the transmission rate. The transmission rate of 300 , 600 , 1200 , 2400 , 4800 , 9600 , and 19200 can be selected with the general purpose knob. Set this parameter to the same value as set on the computer . Parity Sets the error detection [...]

  • Page 396

    UTILITY Menu 3 Ć278 A WG2021 User Manual Date and Time When Date Time is selected from the bottom menu, a clock will appear on the screen, allowing you to set the date and time. The side menu will display items for Y ear , Month , Day , Hour and Minute . Pressing one of these items in the side menu will make it possible to set that clock parameter[...]

  • Page 397

    UTILITY Menu A WG2021 User Manual 3 Ć279 minute is set at the same time the second is reset to 0. (The second is also reset to 00 when the hour is set with Hour .) The date and time can be permanently displayed on the screen if desired. See “Date/T ime Display” on Page 3 -283. Other Settings and Displays Use Misc from the bottom menu to set or[...]

  • Page 398

    UTILITY Menu 3 Ć280 A WG2021 User Manual Setting the Display Brightness. The A WG2021 screen has three levels of brightness. These levels are set with the Brightness menu item. T o set the screen brightness: 1. Select Misc from the bottom menu. 2. Select Display ... from the side menu. 3. Select Brightness from the sub-menu. 4. Use the numeric key[...]

  • Page 399

    UTILITY Menu A WG2021 User Manual 3 Ć281 Figure 3 Ć189: Menu Displayed when Catalog Order is Selected The files in the catalog are displayed in the initial EDIT menu, LOAD/SA VE and UTILITY menus. Changing the file order in a catalog will change the order in all menus. Figure 3 -190 shows the list of files as shown in the initial EDIT menu.[...]

  • Page 400

    UTILITY Menu 3 Ć282 A WG2021 User Manual Figure 3 Ć190: Catalog Files Files in a catalog can be displayed by the following sorting conditions:  Name1: Name Files are displayed by file name ( Name ) in ASCII code order .  Name2: Name-Reverse Files are displayed by file name ( Name ) in reverse ASCII code order .  T ime1: T ime Files are d[...]

  • Page 401

    UTILITY Menu A WG2021 User Manual 3 Ć283 T o change the order in which files are displayed to T ype4 : 1. Select Misc from the bottom menu. 2. Select Display ... from the side menu. 3. Select Catalog Order from the sub-menu. 4. Use the general purpose knob to select T ype4 . 5. Press the EDIT button in the MENU column. Check to make sure that the [...]

  • Page 402

    UTILITY Menu 3 Ć284 A WG2021 User Manual   " Figure 3 Ć192: Date/Time Display The following diagram shows the menu configuration for the Config... item.    "   !  " [...]

  • Page 403

    UTILITY Menu A WG2021 User Manual 3 Ć285 with the exception of Date Time (date and time) to be restored to their default settings. Default settings consist of the factory settings and the following items: Remote Port GPIB GPIB Operating Mode T alk/Listen GPIB Address 1 RS-232-C Parameters Baudrate 9600 Data Bits 8 Parity None Stop Bits 1 Flagging [...]

  • Page 404

    UTILITY Menu 3 Ć286 A WG2021 User Manual When you output a hard copy , you can choose to either save the data displayed on the screen on a floppy disk as a file, or output the data through the IEEE STD 488 (GPIB) or RS-232-C interface. When you select Hardcopy ... from the side menu, you can select the format for the hard copy and the output port.[...]

  • Page 405

    UTILITY Menu A WG2021 User Manual 3 Ć287 T able 3Ć23: Format Extensions (Cont.) Format Explanation Extension                ?[...]

  • Page 406

    UTILITY Menu 3 Ć288 A WG2021 User Manual This means that the hard copy has been saved to the floppy disk in TIFF format under the file name SETUP000 . File names and extensions will be assigned automatically based on the menu and the format of the hard copy . File Name Extension Name of screen menu being printed Numbering SETUP 000 TIF The file na[...]

  • Page 407

    UTILITY Menu A WG2021 User Manual 3 Ć289 The GPIB/RS-232-C status display consists of the following items: PSC , Header , V erbose , Data and Debug . In addition, the cumulative power-on time ( Up T ime ) is displayed. 1. Select Misc from the bottom menu. 2. Select Status... from the side menu. 3. Select System from the sub-menu. System and GPIB/R[...]

  • Page 408

    UTILITY Menu 3 Ć290 A WG2021 User Manual Figure 3 Ć196: I/O Event Reporting Use this item to run the diagnostics function or to calibrate the instrument. Diagnostics. This instrument is equipped with diagnostics functions to compre- hensively test itself. This makes it possible to check whether the instrument is operating correctly . A series of [...]

  • Page 409

    UTILITY Menu A WG2021 User Manual 3 Ć291 Figure 3 Ć197: Diagnostics List At the top of the diagnostics menu are three columns giving the status of the diagnostic tests. The meaning of these three columns is as follows. Diagnostics This column gives the name of the diagnostic test item. The diagnostics items are executed individually or all togeth[...]

  • Page 410

    UTILITY Menu 3 Ć292 A WG2021 User Manual 4. Select Execute from the side menu. The selected diagnostics items are executed. If the test finishes without a problem, Pass is displayed on the Result column. If an error occurs, Fail is displayed. If the instrument fails a test, an error code is displayed in the Code column. Calibrations. This instrume[...]

  • Page 411

    UTILITY Menu A WG2021 User Manual 3 Ć293 2. Select Calibrations from the side menu. 3. T urn the general purpose knob to select the desired calibration. T o execute all the calibrations one after another , select All . 4. Select Execute from the side menu. The selected calibration item is carried out. If the calibration finishes without a problem,[...]

  • Page 412

    UTILITY Menu 3 Ć294 A WG2021 User Manual[...]

  • Page 413

    A WG2021 User Manual 3 Ć295 Function W aveform Generator Mode General Description Press the front panel F. G button to switch from arbitrary waveform generation mode into function waveform generation ( FG ) mode. Select the desired waveform with the bottom button. Then set the output parameters with the side button. Hereafter , function waveform g[...]

  • Page 414

    Function W aveform Generator Mode 3 Ć296 A WG2021 User Manual The descriptions in this section are for an instrument with Option 02, CH2 output installed. Instruments without Option 02 have only the CH1 display . Function Generator Menu Structure Figure 3 -199 shows the configuration of the menus in FG mode:   Channel Sine T riangle Ramp [...]

  • Page 415

    Function W aveform Generator Mode A WG2021 User Manual 3 Ć297 Function Generator Menu Display Figure 3 -200 shows the general display for the FG mode menu. A description for each callout follows. 1 2 Figure 3 Ć200: FG Mode Menu Display (1) Channel waveform display area Displays the waveform set for that channel. When the channel is enclosed by a [...]

  • Page 416

    Function W aveform Generator Mode 3 Ć298 A WG2021 User Manual Setting the Output W aveform The following procedure is used to set the output waveform for a channel. 1. Press the “ Channel ” button in the bottom menu and select the channel. The “ Channel ” item is used to select the channel for which the waveform and its output parameters w[...]

  • Page 417

    Function W aveform Generator Mode A WG2021 User Manual 3 Ć299 The amplitude can be set in steps of 1 mV within the range 0.050 V – 5.000 V (P-P value). using the numeric keys or the general purpose knob. Figure 3 -201 shows a sine waveform whose amplitude has been set to 5V . Figure 3 Ć201: Setting the Amplitude The offset for each waveform can[...]

  • Page 418

    Function W aveform Generator Mode 3 Ć300 A WG2021 User Manual Figure 3 Ć203: W aveform Polarity Duty is added for the Pulse side menu. It allows you to set the duty cycle for pulse waveforms. The duty is set to 0–100% in steps of 1%. Duty is set using the numeric keys or the general purpose knob. When the duty is set to 0% or 100%, the wave wil[...]

  • Page 419

    Function W aveform Generator Mode A WG2021 User Manual 3 Ć301 The sync signal is a 1.5 V signal into 50 W with a pulse width of 100 ns. These signals are output from the front panel CH1 SYNC connector and the rear panel CH2 SYNC OUT connector (for Option 02). The marker signal is generated at the start point for the waveform data. It is a 2.5 V si[...]

  • Page 420

    Function W aveform Generator Mode  A WG2021 User Manual[...]

  • Page 421

    A WG2021 User Manual AĆ1 Appendix A: Options and Accessories This chapter describes the options, and standard and optional accessories available for the A WG2021. Options The following options are available. Option 02 (2-Channel Output) Option 03 (ECL Digital Data Output) Option 04 (TTL Digital Data Output) Option 09 (FPP Board + FFT Editor/Convol[...]

  • Page 422

    Appendix A: Options and Accessories AĆ2 A WG2021 User Manual Clock Output. The same clock that is fed to the A WG2021 internal D/A converter is buffered like the data and delivered to the output connector . The clock output is differential ECL output. Figure A-1 is a block diagram of the digital data output option.    ?[...]

  • Page 423

    Appendix A: Options and Accessories A WG2021 User Manual AĆ3 Output Connector Configuration. Figure A-2 shows the shape and pin number location of the output connector , and T able A-1 shows the output signal for each pin.     Figure AĆ2: Output Connector T able AĆ1: Output Signal Pin Number Signal Pin Number Signal  ?[...]

  • Page 424

    Appendix A: Options and Accessories AĆ4 A WG2021 User Manual  . When loading a new waveform into waveform memory , r esetting the waveform memory , or during the hold off, excess output can be generated in the data clock (see Figur e A-3).       ?[...]

  • Page 425

    Appendix A: Options and Accessories A WG2021 User Manual AĆ5 Output Circuit and Output W aveform. The ECL buf fer (10E1 16) output is connected directly to the output connector . When used, these signals must be terminated to –2 V with a 50 W resistor at the receiving side (user side). If this termination resistor is missing, the signals do not [...]

  • Page 426

    Appendix A: Options and Accessories AĆ6 A WG2021 User Manual must be ≤ than 1ns. waveform to go from 10% to 90% of its peak value ; measure the time for the Rise Time / Fall T ime : Raise Time Fall Time Skew : Measure at 50% level of the waveform; must be ≤ than 1ns. Clock Data Level High : -0.735V  -1.02V Level Low: -1.6V  -1.95V Figure[...]

  • Page 427

    Appendix A: Options and Accessories A WG2021 User Manual AĆ7 Cable Application Example. The cable connecting the A WG2021 and the user circuit is extremely critical for reliable operation at the maximum clock frequency .  . Use a coaxial cable with a characteristic impedance of 50 W for all DA T A and CLOCK lines. Keep cables as short [...]

  • Page 428

    Appendix A: Options and Accessories AĆ8 A WG2021 User Manual Digital Data Latch Example. Figure A-9 shows an example of an external circuit for latching the digital data. D0 D1 D2 Q1 Q1 Q2 Q2 D3 Q3 Q3 D4 Q4 Q4 D5 Q5 Q5 Q0 Q0 MR CLK D0 D1 D2 Q1 Q2 Q2 D3 Q3 Q3 D4 Q4 Q4 D5 Q5 Q5 Q0 Q0 MR CLK CLOCK *CLOCK D0 *D0 D1 1 *D1 1 RESISTOR: 50 ohm CAP ACITOR:[...]

  • Page 429

    Appendix A: Options and Accessories A WG2021 User Manual AĆ9  . T ektr onix cannot be responsible for the infringement of any thir d-party industrial pr oprietary rights, copyrights, or other rights arising fr om the use of these cir cuits.  . The ECB is a multi-layer boar d. One layer is used as gr ound, the other as the p[...]

  • Page 430

    Appendix A: Options and Accessories AĆ10 A WG2021 User Manual Option 04 Output Connector Clock Data Buffer W aveform Memory D/A Latch D0  D1 1 CLOCK 12 12 Clock Data 12 Bits 12 12 Figure AĆ10: Block Diagram Output Connector Configuration. Figure A-1 1 is the shape and pin number location of the output connector , and T able A-2 is the output s[...]

  • Page 431

    Appendix A: Options and Accessories A WG2021 User Manual AĆ1 1 T able AĆ2: Connector Pin Assignments (Cont.) Pin Number Signal Pin Number Signal 9 D4 23 D1 1 (MSB) 11 D5 25 Clock 13 D6 Pins other than those mentioned are connected to ground. The pin assignments are identical for both CH1 and CH2.  Operation. Operation is the same as for the ba[...]

  • Page 432

    Appendix A: Options and Accessories AĆ12 A WG2021 User Manual  Output Circuit and Output W aveform. Figure A-13 shows a diagram of the output circuit. After passing through an output resistance of 50 W , the buffer output proceeds to the output connectors. The A WG2021 can be used without terminating the receiving (user) side with a resistance [...]

  • Page 433

    Appendix A: Options and Accessories A WG2021 User Manual AĆ13 Clock Data 50% level of the Clock Middle point of the Data Skew: within ± 4n s Level High:2 V or greater (into a 50 W termination) Level Low:0.8 V or less (into a 50 W termination) Figure AĆ14: Output W aveform If a cable is used, these waveforms have transmission distortion. It is ne[...]

  • Page 434

    Appendix A: Options and Accessories AĆ14 A WG2021 User Manual Cable Application Example. The cable connecting the A WG2021 and the user circuit is extremely critical for reliable operation at the maximum clock frequency .  . Use a coaxial cable with a characteristic impedance of 50 W for all DA T A and CLOCK lines. Keep cables as short[...]

  • Page 435

    Appendix A: Options and Accessories A WG2021 User Manual AĆ15 W aveform Regeneration. In some cases, even a cable that has been carefully made will create transmission distortion. Figure A-17 shows a concrete example of a circuit used to regenerate the waveform.           ?[...]

  • Page 436

    Appendix A: Options and Accessories AĆ16 A WG2021 User Manual This option provides increased internal calculation speed and two additional editors: an FFT editor and a convolution editor . See Section 3 for more informa- tion on the FFT and convolution waveform editors. The A WG2021 is shipped mounted in a 19-inch wide rack. In this configuration,[...]

  • Page 437

    Appendix A: Options and Accessories A WG2021 User Manual AĆ17 Accessories The A WG2021 includes the following standard accessories: Standard Accessory Part Number Manuals User Manual 070Ć9097Ć50 Programmer Manual 070Ć8657ĆXX Floppy disk Sample W aveform Library Disk, 3.5Ćinch 063Ć2169ĆXX Sample program, 3.5Ćinch 063Ć1708ĆXX Performance C[...]

  • Page 438

    Appendix A: Options and Accessories  A WG2021 User Manual[...]

  • Page 439

    A WG2021 User Manual BĆ1 Appendix B: Performance Characteristics The performance characteristics on the A WG2021 can be divided into three categories:  Nominal T raits. General characteristics are described not by equipment performance and limits but by such things as memory capacity .  W arranted Characteristics. W arranted characteristics [...]

  • Page 440

    Appendix B: Performance Characteristics BĆ2 A WG2021 User Manual T able BĆ1: Electrical Characteristics (Cont.) Characteristics Description Arbitrary W aveforms W aveform Memory Memory Length W aveform 256K × 12 bits Marker1 256K × 1 bit Marker2 256K × 1 bit W aveform 64 to 256K in multiple of 8 data points Sequence Memory 8K, 32 bits/word Sca[...]

  • Page 441

    Appendix B: Performance Characteristics A WG2021 User Manual BĆ3 T able BĆ1: Electrical Characteristics (Cont.) Characteristics Description Auxiliary Output SYNC When in F .G mode and the frequency is above 250 kHz, the Sync pulse occurs one time per two waveforms. Amplitude >1.2 V into 50 W , >2.4 V into open circuit Impedance 50 W MARKER1[...]

  • Page 442

    Appendix B: Performance Characteristics BĆ4 A WG2021 User Manual T able BĆ1: Electrical Characteristics (Cont.) Characteristics Description AM Range 2 V pĆp (-1V  1V) for 100% modulation Impedance 10 k W Clock Impedance 50 W Function Generator W aveform Shape Sine, T riangle, Square, Ramp, Pulse Output Parameter All of these values with the e[...]

  • Page 443

    Appendix B: Performance Characteristics A WG2021 User Manual BĆ5 T able B-1-2 Cycle to Cycle Jitter (CH1 Marker 1 Out) Clock=250MS/s Clock=100MS/s StdDev Pk-Pk StdDev Pk-Pk 20.0 ps 1 10.0 ps 20.0 ps 90.0 ps T able B-1-3 Period Jitter (Clock Out) Clock=250MS/s Clock=100MS/s StdDev Pk-Pk StdDev Pk-Pk 1 1.0 ps 60.0 ps 10.5 ps 50.0 ps T able B-1-4 Cyc[...]

  • Page 444

    Appendix B: Performance Characteristics BĆ6 A WG2021 User Manual W arranted Characteristics This section will describe the warranted characteristics of the A WG2021. These can be divided into two main categories: electrical characteristics and environ- mental characteristics. The electrical characteristics are valid under the following conditions:[...]

  • Page 445

    Appendix B: Performance Characteristics A WG2021 User Manual BĆ7 T able BĆ3: Electrical Characteristics (Cont.) Characteristics Description ** Offset W aveform is 0 VDC and Amplitude range is 0.05 V ** Accuracy ± (1% of Offset + 5 mV) Cross talk between Channels Option 02, Sine (512 points), 250 MHz Clock, Amplitude 5 V , No Offset, No Filter &l[...]

  • Page 446

    Appendix B: Performance Characteristics BĆ8 A WG2021 User Manual T able BĆ3: Electrical Characteristics (Cont.) Characteristics Description ** MARKER1 ** Amplitude 2.5 V (+5%, -10%) into 50 W , 5 V (+5%, -10%) into open circuit Rise/Fall time <8n s Marker to Signal delay within 15 ns ** MARKER2 ** Amplitude 2.5 V (+5%, -10%) into 50 W , 5 V (+[...]

  • Page 447

    Appendix B: Performance Characteristics A WG2021 User Manual BĆ9 T able BĆ3: Electrical Characteristics (Cont.) Characteristics Description Auxiliary Input ** TRIGGER ** Accuracy ± (5% of Level + 0.1 V) Pulse Width 15 ns minimum Input Swing 0.2 V pĆp minimum Maximum Input V olts 10 V pĆp when 1 M W selected 5V RMS when 50 W selected T rigger t[...]

  • Page 448

    Appendix B: Performance Characteristics BĆ10 A WG2021 User Manual T able BĆ3: Electrical Characteristics (Cont.) Characteristics Description ** Add When Option 02 (second channel) installed ** Output within 5% CH1 + CH2 (value indicated at the lower right box in SETUP menu) Output can not exceed 5 V pĆp . Frequency Response DC to 30 MHz (-3 dB) [...]

  • Page 449

    Appendix B: Performance Characteristics A WG2021 User Manual BĆ1 1 T able BĆ4: Environmental Characteristics (Cont.) Characteristics Description Dynamics Vibration Operation 0.33 mm pĆp , 10 to 55 Hz, 15 minutes Shock Non operating 294 m/s 2 (30 G), halfĆsine, 1 1 ms duration. Installation Requirements Power Consumption (Fully Loaded) 300 watts[...]

  • Page 450

    Appendix B: Performance Characteristics BĆ12 A WG2021 User Manual T ypical Characteristics This section will describe the typical characteristics for the A WG2021. These values represent typical or average performance and are not absolutely guaran- teed. T able BĆ5: Electrical Characteristics Characteristics Description Delay 1 MHz 390 ns 5 MHz 7[...]

  • Page 451

    Appendix B: Performance Characteristics A WG2021 User Manual BĆ13 T able BĆ6: Certifications and compliances Category Standards or description EC Declaration of Conformity - EMC Meets intent of Directive 89/336/EEC for Electromagnetic Compatibility . Compliance was demonstrated to the following specifications as listed in the Official Journal of [...]

  • Page 452

    Appendix B: Performance Characteristics BĆ14 A WG2021 User Manual T able BĆ6: Certifications and compliances (cont.) Category Standards or description Conditions of Approval Safety Certifications/Compliances are made for the following conditions: Altitude (maximum operation): 2000 meters IEC Characteristics Equipment type: T est and Measuring Ins[...]

  • Page 453

    A WG2021 User Manual CĆ1 Appendix C: Performance V erification Before V erification This section describes the verification procedures, tells you when to use the procedures, and gives conventions used in their structure. The procedures are:  Self T ests  Performance T ests These procedures verify the A WG2021 Arbitrary W aveform Generator fu[...]

  • Page 454

    Appendix C: Performance V erification CĆ2 A WG2021 User Manual a. First Substep  First Subpart  Second Subpart b. Second Substep 2. Second Step  Instructions for menu selection follow this format: FRONT P ANEL BUTTON  Main Menu Button  Side Menu Button . For example, “Press UTILITY  Misc  Config...  Reset to Factory  O[...]

  • Page 455

    Appendix C: Performance V erification A WG2021 User Manual CĆ3 Equipment Required  Prerequisites                1. V erify t[...]

  • Page 456

    Appendix C: Performance V erification CĆ4 A WG2021 User Manual The A WG2021 includes internal calibration routines that check electrical characteristics such as amplitude, offset, trigger level, clock, filters, X5 output amplifier and attenuation, and adjust internal calibration constants as necessary . Equipment Required  Prerequisite[...]

  • Page 457

    Appendix C: Performance V erification A WG2021 User Manual CĆ5  . The interactive tests on the Diag/Cal menu ar e for manufacturing use at the factory . Performance T ests This section contains a series of procedures for checking that the A WG2021 Arbitrary W aveform Generator performs as warranted. The procedures are arranged in ten l[...]

  • Page 458

    Appendix C: Performance V erification CĆ6 A WG2021 User Manual memory . For instructions on loading files, see Loading Sample W aveforms on page 2 -28 in section 2. Read Pr eparation and Conventions on page C-1. Also, if you are not familiar with operating the A WG2021, read in section 2 before doing any of these procedures. The following equipmen[...]

  • Page 459

    Appendix C: Performance V erification A WG2021 User Manual CĆ7 T able CĆ1: T est Equipment (Cont.) Item Purpose Example Minimum Requirements Digital multimeter DC volts range: 0.05ĂV to 5ĂV Accuracy:  0.1% Fluke 8842A Used throughout the checks to measure voltage. Function generator Output voltage: -5ĂV to 5ĂV T ektronix FG 5010 ProgramĆ [...]

  • Page 460

    Appendix C: Performance V erification CĆ8 A WG2021 User Manual T able CĆ2: File List for Performance Check/Adjustment Disk EDIT Menu SETUP Menu No. File Name Wfm Shape Wfm Point Clock Operation Filter Amp Offset Usage 1 MODE.WFM 1000 1 MHz Normal Through 1V 0V Cont, T rigĆ gered, Burst , Gated Mode 2 MODE_ADV .SEQ ąADV Ć1.WFM ąADV Ć2.WFM 120[...]

  • Page 461

    Appendix C: Performance V erification A WG2021 User Manual CĆ9 T able CĆ2: File List for Performance Check/Adjustment Disk (Cont.) No. Usage SETUP Menu EDIT Menu File Name No. Usage Offset Amp Filter Operation Clock Wfm Point Wfm Shape File Name 7 GAIN_OFF .AST Step: 1 GAINĆ1.WFM 1000 1 MHz Normal Through 0.5 V 0V Gain Accuracy Step: 2 GAINĆ2.W[...]

  • Page 462

    Appendix C: Performance V erification CĆ10 A WG2021 User Manual Operating Mode Checks These procedures check operation of the Cont, T riggered, Burst, Gated, W aveform Advance, and Autostep modes. Electrical Characteristic Checked       "# Equipmen[...]

  • Page 463

    Appendix C: Performance V erification A WG2021 User Manual CĆ1 1 2. Set the A WG2021 contr ols and select the waveform file: a. Initialize A WG2021 contr ols: Push UTILITY  Misc  Config...  Re- set to Factory  O.K. b. Select the file:  Push SETUP  W aveform Sequence , if necessary , to select a waveform file for CH1. W aveform Se[...]

  • Page 464

    Appendix C: Performance V erification CĆ12 A WG2021 User Manual    540 TDS AWG2021   FG 5010 Figure CĆ4: T riggered Mode Initial T est Hookup c. Set the oscilloscope contr ols: V ertical CH1 . . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 465

    Appendix C: Performance V erification A WG2021 User Manual  2. Set A WG2021 contr ols and select the waveform file: a. Initialize A WG2021 contr ols: Push UTILITY  Misc  Config...  Re- set to Factory  O.K. b. Modify the A WG2021 default settings:  Push MODE  T riggered  Slope to select Positive slope.  Select Lev[...]

  • Page 466

    Appendix C: Performance V erification CĆ14 A WG2021 User Manual Electrical Characteristic Checked      "# Equipment Required  " W !     Prerequisites [...]

  • Page 467

    Appendix C: Performance V erification A WG2021 User Manual CĆ15 c. Select the file:  Push SETUP  W aveform Sequence , if necessary , to select a waveform file for CH1. W aveform Sequence toggles between the CH1 files (upper list) and the CH2 files (lower list).  T urn the general purpose knob to highlight the MODE.WFM file.  Push ENTER[...]

  • Page 468

    Appendix C: Performance V erification CĆ16 A WG2021 User Manual   FG 5010   540 TDS AWG2021 Figure CĆ6: Gated Mode Initial T est Hookup c. Set oscilloscope contr ols: V ertical CH1, CH2 . . . . . . . . . . . . . . . . . . . . . . . . . CH1,[...]

  • Page 469

    Appendix C: Performance V erification A WG2021 User Manual  2. Set the A WG2021 contr ols and select the waveform file: a. Initialize A WG2021 contr ols: Push UTILITY  Misc  Config...  Re- set to Factory  O.K. b. Modify the A WG2021 default settings:  Push MODE  Gated  Polarity to highlight Positive.  Select Impe[...]

  • Page 470

    Appendix C: Performance V erification CĆ18 A WG2021 User Manual          Figure CĆ7: W aveform Output Signal with Positive Gate Signal c. Change the A WG2021 trigger polarity to negative: Push MODE  Po- larity to change the polarity to Negative. d. Check [...]

  • Page 471

    Appendix C: Performance V erification A WG2021 User Manual CĆ19 Electrical Characteristic Checked    " "  $% Equipment Required  $ W #    [...]

  • Page 472

    Appendix C: Performance V erification CĆ20 A WG2021 User Manual  Push MODE  W aveform Advance  Slope to highlight Positive.  Select Level from the side menu, and turn the general purpose knob to select a 1.0 V level.  Select Impedance from the side menu to highlight 50 W . c. Select waveform file:  Push SETUP  W aveform Sequen[...]

  • Page 473

    Appendix C: Performance V erification A WG2021 User Manual CĆ21    540 TDS AWG2021 Figure CĆ10: Autostep Mode Initial T est Hookup b. Set the oscilloscope contr ols: V ertical CH1 . . . . . . . . . . . . . . . . . . . . . . . . . CH1 coupling DC . . . . . . . . . . . . . . . . . CH1 scale 0[...]

  • Page 474

    Appendix C: Performance V erification CĆ22 A WG2021 User Manual  Select Start within the Sync frame at the bottom menu. 3. T urn on the A WG2021 CH1 output: If the LED above the CH1 output connector is not on, push the CH1 button. 4. Check autostep mode: Push the A WG2021 MANUAL TRIGGER button, and check that the oscilloscope momentarily displa[...]

  • Page 475

    Appendix C: Performance V erification A WG2021 User Manual CĆ23     FG 5010  8842A AWG2021 Figure CĆ1 1: External AM Operation Initial T est Hookup c. Set DMM contr ols : Mode VDC . . . . . . . . . . . . . . . . . . . . . . . . . . . Range 20 . . . . . . . . . . . . [...]

  • Page 476

    Appendix C: Performance V erification CĆ24 A WG2021 User Manual  T urn the general purpose knob to highlight the OPE.AST file.  Push ENTER . 3. T urn on the A WG2021 CH1 output: If the LED above the CH1 output connector is not on, push the CH1 button. 4. Enable the function generator output: T urn on the function generator output. 5. Check e[...]

  • Page 477

    Appendix C: Performance V erification A WG2021 User Manual   Set the function generator offset value to –1 V . Check that the DMM voltage reading is in the range from –0.125 to 0.125 V (0% modulation). 6. End pr ocedur e: Keep the test connections and instrument settings for the next check.[...]

  • Page 478

    Appendix C: Performance V erification CĆ26 A WG2021 User Manual Electrical Characteristic Checked Arithmetic Operation, Amplitude Modulation, on pageĂBĆ9. Equipment Required T wo 50Ă W coaxial cables, a function generator, and a digital multimeter (DMM). Prerequisites The A WG2021 meets the prerequisites listed on page CĆ5. It also requires Op[...]

  • Page 479

    Appendix C: Performance V erification A WG2021 User Manual CĆ27 3. End pr ocedur e: a. Disable function generator output: T urn the function generator output off. b. Remove equipment: Disconnect connections to the test equipment. Clock Frequency and Amplitude Checks These procedures check the accuracy of the A WG2021 clock frequency and the wavefo[...]

  • Page 480

    Appendix C: Performance V erification  A WG2021 User Manual b. Set fr equency counter contr ols: CHANNEL A T ermination 50 W . . . . . . . . . . . . . . . . . . Slope Negative . . . . . . . . . . . . . . . . . . . . . . . Attenuation X5 . . . . . . . . . . . . . . . . . . . Coupling AC . . . . . . . . . . . . . . . . . . . . . FREQ A 2.[...]

  • Page 481

    Appendix C: Performance V erification A WG2021 User Manual CĆ29 T able CĆ3: Clock Frequency Accuracy Clock Frequency Frequency Range 150 MHz 149.9925ĂMHz - 150.0075ĂMHz 1 MHz 0.99995ĂMHz – 1.00005ĂMHz 1k H z 0.99995ĂkHz - 1.00005ĂkHz 10 Hz 9.9995ĂHz - 10.0005ĂHz 4. End pr ocedur e: Disconnect the frequency counter . Electrical Character[...]

  • Page 482

    Appendix C: Performance V erification  A WG2021 User Manual b. Set oscilloscope contr ols: V ertical CH1 . . . . . . . . . . . . . . . . . . . . . . . . . Coupling DC . . . . . . . . . . . . . . . . . . . . . Scale 500 mV/div . . . . . . . . . . . . . . . . . . . . . . . . . Input impedance 50 W . . . . . . . . . . . . . . . Horizontal [...]

  • Page 483

    Appendix C: Performance V erification A WG2021 User Manual CĆ31 Gain and Offset Accuracy Checks These procedures check the accuracy of the A WG2021 gain and offset.  . The gain and offset accuracy checks ar e structur ed as a continuous test. After C heck Gain Accuracy , the next test uses the contr ol settings fr om the last test and [...]

  • Page 484

    Appendix C: Performance V erification  A WG2021 User Manual b. Select the A WG2021 waveform file:  Push MODE  Autostep  Select Autostep File to choose a sequence file for CH1.  T urn the general purpose knob to select the GAIN_OFF .AST file.  Push ENTER . 3. Check gain accuracy:  Check that the displayed step is Step 1[...]

  • Page 485

    Appendix C: Performance V erification A WG2021 User Manual CĆ33 Electrical Characteristic Checked Main Output, Offset, Accuracy , on pageĂBĆ6. Equipment Required A 50Ă W coaxial cable, 50Ă W termination, BNCĆtoĆdual banana adapter , and a digital multimeter (DMM). Prerequisites The A WG2021 meets the prerequisites listed on page CĆ5. 1. Use[...]

  • Page 486

    Appendix C: Performance V erification CĆ34 A WG2021 User Manual Pulse Response Check This procedure checks the pulse response characteristics of the A WG2021 output waveforms at amplitudes of 0.5 and 1 V . Electrical Characteristic Checked Main Outputs, Pulse Response, on pageĂBĆ7. Equipment Required A 50Ă W coaxial cable and an oscilloscope. P[...]

  • Page 487

    Appendix C: Performance V erification A WG2021 User Manual  2. Set the A WG2021 contr ols and select the waveform file: a. Initialize A WG2021 contr ols: Push UTILITY  Misc  Config...  Re- set to Factory  O.K. b. Select waveform file:  Push SETUP  W aveform Sequence , if necessary , to select a waveform file for CH1. W[...]

  • Page 488

    Appendix C: Performance V erification CĆ36 A WG2021 User Manual  Press the numeric key 1 , and press the units key V to select an amplitude of 1 V . c. Repeat substeps 4a thr ough e, checking to the follow limits: Rise time 4.2 ns, maximum . . . . . . . . . . . . . . . . . . . . . . . . Aberrations 0.4 div ., maximum . . . . . . . . . . . . . .[...]

  • Page 489

    Appendix C: Performance V erification A WG2021 User Manual  b. Set oscilloscope contr ols: V ertical CH1 . . . . . . . . . . . . . . . . . . . . . . . . . CH1 Coupling DC . . . . . . . . . . . . . . . . CH1 Scale 200 mV/div . . . . . . . . . . . . . . . . . . . . CH1 Input Impedance 50 W . . . . . . . . . . Horizontal Sweep 50 ns/div . [...]

  • Page 490

    Appendix C: Performance V erification CĆ38 A WG2021 User Manual 4. Check r ear-panel CH1 MARKER Out 2 pulse amplitude: a. Check CH1 MARKER 2 OUT pulse amplitude:  Remove the coaxial cable from the A WG2021 front-panel CH1 MARKER 1 connector and connect it through the SMA-BNC adapter to the rear-panel CH1 MARKER 2 OUT connector .  Check that [...]

  • Page 491

    Appendix C: Performance V erification A WG2021 User Manual CĆ39    540 TDS AWG2021   FG 5010 Figure CĆ18: External T rigger Level Accuracy Initial T est Hookup c. Set oscilloscope contr ols: V ertical CH1 . . . . . . . . . . . . . . . . . .[...]

  • Page 492

    Appendix C: Performance V erification  A WG2021 User Manual 2. Select the A WG2021 waveform file and set A WG2021 controls: a. Initialize A WG2021 contr ols: Push UTILITY  Misc  Config...  Re- set to Factory  O.K. b. Modify A WG2021 default settings:  Push MODE  Gated  Polarity to highlight Positive .  Select Lev[...]

  • Page 493

    Appendix C: Performance V erification A WG2021 User Manual CĆ41 b. Change the A WG2021 contr ols:  Push MODE  Polarity to highlight Negative .  Select Level from the side menu, and turn the general purpose knob to select –1 V . (Y ou can also use the numeric and units keys to select –1 V ; then push ENTER .) c. Check external trigger [...]

  • Page 494

    Appendix C: Performance V erification CĆ42 A WG2021 User Manual    540 TDS   FG 5010 AWG2021 Figure CĆ19: External CLOCK IN Initial T est Hookup c. Set oscilloscope contr ols: V ertical CH1 . . . . . . . . . . . . . . . . . . . . . . . . . [...]

  • Page 495

    Appendix C: Performance V erification A WG2021 User Manual CĆ43 2. Select the A WG2021 waveform file and set A WG2021 controls: a. Initialize A WG2021 contr ols: Push UTILITY  Misc  Config...  Re- set to Factory  O.K. b. Select waveform file:  Push SETUP  W aveform Sequence , if necessary , to select a waveform file for CH1. W av[...]

  • Page 496

    Appendix C: Performance V erification CĆ44 A WG2021 User Manual 1. Install test hookup and set test equipment contr ols: a. Hook up termination boar d: Connect the A WG2021 rear ECL digital data output through a digital data output cable to the termination board (see Figure C-20). b. Hook up power supply: Connect the power supply output through th[...]

  • Page 497

    Appendix C: Performance V erification A WG2021 User Manual  Horizontal Sweep Adjust as needed . . . . . . . . . . . . . . . . . . . . . . . T rigger Mode Auto . . . . . . . . . . . . . . . . . . . . . . . e. Set power supply contr ols: Parameter Supply select Negative . . . . . . . . . . . . . . . . . V oltage 2 . . . . . . . . . . . . [...]

  • Page 498

    Appendix C: Performance V erification CĆ46 A WG2021 User Manual D1 1 D10 D9 D8 D7 D6 D5 D4 D2 D1 D0 D3 J150 J200 GND TP100 GND TP210 D7 D8 D9 D10 D1 1 GND TP200 CLK CLK J210 –2VD TP120 D3 D0 D1 D2 D4 D5 D6 Figure CĆ21: Output Pins on the T ermination Board 5. T urn off equipment output and disconnect test hookup: a. Disable power supply output:[...]

  • Page 499

    Appendix C: Performance V erification A WG2021 User Manual CĆ47 TTL DIGIT AL DA T A OUT Check (Option 04) This procedure checks the A WG2021 TTL DIGIT AL DA T A OUT at the rear panel.  . This check r equir es that the AWG2021 has Option 04 installed. Electrical Characteristic Checked Auxiliary Output, TTL DIGIT AL DA T A OUT , Level, o[...]

  • Page 500

    Appendix C: Performance V erification  A WG2021 User Manual b. Hook up oscilloscope:  Connect the oscilloscope probe to the CH1 vertical input.  Connect the probe ground-clip to the GND pin of 2 × 13 header . c. Set oscilloscope contr ols: V ertical CH1 . . . . . . . . . . . . . . . . . . . . . . . . . Scale 1 V/div . . . . . . .[...]

  • Page 501

    Appendix C: Performance V erification A WG2021 User Manual CĆ49            ×    Figure CĆ23: Output Pins on the TTL Digital Data Out Cable 4. If Option 02 is installed, check the CH2 digital data output sig[...]

  • Page 502

    Appendix C: Performance V erification CĆ50 A WG2021 User Manual Floating Point Processor Check (Option 09) This procedure checks the A WG2021 floating point processor . This check requires that the A WG2021 has Option 09 installed. Equipment Required  Prerequisites      [...]

  • Page 503

    A WG2021 User Manual DĆ1 Appendix D: Sample W aveform Library Introduction The files and directories listed below are included in the route directory of the Sample W aveform Library Disk that comes with the instrument. All files are locked; this is indicated by an asterisk (*) before the file name. There are 16 of these waveform files. If a wavefo[...]

  • Page 504

    Appendix D: Sample W aveform Library DĆ2 A WG2021 User Manual W aveform Name Page File Name 16. W aveform for Magnetic Disk Readout Signal MDSK_RD.WFM DĆ18 17. W aveform for Magnetic Disk Writing Signal MDSK_WR.WFM DĆ19 Contains video signals. W aveform Name File Name 1. Color Bar (Composite) signal $CB1-2H.SEQ 2. Color Bar (Luminance) signal $C[...]

  • Page 505

    Appendix D: Sample W aveform Library A WG2021 User Manual DĆ3 Description of Representative W aveform Files Here we will describe the 17 representative waveform files. Some of the waveform files were obtained by creating an equation file in the equation editor and then compiling it to form a waveform file. Others were created in the waveform edito[...]

  • Page 506

    Appendix D: Sample W aveform Library DĆ4 A WG2021 User Manual Constants k0 indicates the half width (W 50 ) for the pulse; k1 indicates the peak location of the pulse. Description The waveform generated when the pulse width is taken to be t W50 and the peak location is taken to be 0 can be expressed as Gaussian form in the frequency domain as well[...]

  • Page 507

    Appendix D: Sample W aveform Library A WG2021 User Manual DĆ5 Made with the equation editor . Figure DĆ2: Lorentz Pulse Formula and W aveform Constants k0 indicates the half width (W 50 ) for the pulse; k1 indicates the peak location of the pulse. Description When the pulse width is taken to be t w50 , the waveform can be expressed by the followi[...]

  • Page 508

    Appendix D: Sample W aveform Library DĆ6 A WG2021 User Manual Made with the equation editor . Figure DĆ3: Sampling Function SIN(X)/X Pulse Formula and W aveform Constants k0 indicates the frequency of the sine wave; k1 indicates the peak location of the pulse. Description In general, this waveform is expressed by the following formula: This is th[...]

  • Page 509

    Appendix D: Sample W aveform Library A WG2021 User Manual DĆ7 Made with the equation editor . Figure DĆ4: Squared Sine Pulse Formula and W aveform Description The pulse width and peak location are set with range () . The value for x is a value between 0 and 1 for range (a,b) . Settings W aveform points: 1000 Clock frequency: 100 MHz Output time: [...]

  • Page 510

    Appendix D: Sample W aveform Library DĆ8 A WG2021 User Manual This is the rising and falling exponential function pulse. Made with the equation editor . Figure DĆ5: Double Exponential Pulse Formula and W aveform Constants    ! # !"   # "##[...]

  • Page 511

    Appendix D: Sample W aveform Library A WG2021 User Manual DĆ9 Made with the equation editor . Figure DĆ6: Nyquist Pulse Formula and W aveform Constants k0 is the period of the digital data used in communication or recording. k1 is the pulse peak location. k2 is the excess bandwidth factor , and is a value between 0 to 1. Description This is the i[...]

  • Page 512

    Appendix D: Sample W aveform Library DĆ10 A WG2021 User Manual Made with the equation editor . Figure DĆ7: Linear Frequency Sweep Formula and W aveform Constants  " # "& !     ! # "#!#   ! $?[...]

  • Page 513

    Appendix D: Sample W aveform Library A WG2021 User Manual DĆ1 1 Made with the equation editor . Figure DĆ8: Log Frequency Sweep Formula and W aveform Constants  ! " !%         " !" "    #[...]

  • Page 514

    Appendix D: Sample W aveform Library DĆ12 A WG2021 User Manual Made with the equation editor . Figure DĆ9: Amplitude Modulation Formula and W aveform Constants k0 is the frequency of the modulating signal, k1 is the carrier frequency , and k2 is the modulation degree. Description This example shows a double sideband (DSB) amplitude modulated wave[...]

  • Page 515

    Appendix D: Sample W aveform Library A WG2021 User Manual DĆ13 Made with the equation editor . Figure DĆ10: Frequency Modulation Formula and W aveform Constant   ! "!  "&    !  "&  [...]

  • Page 516

    Appendix D: Sample W aveform Library DĆ14 A WG2021 User Manual Made with the equation editor . Figure DĆ1 1: Damped Sine W ave Formula and W aveform Constants k0 indicates the inductance (L), k1 indicates the capacitance (C), and k3 indicates the damping time constant. Description This is an attenuated amplitude waveform with a resonance frequenc[...]

  • Page 517

    Appendix D: Sample W aveform Library A WG2021 User Manual DĆ15 Made with the waveform editor . Figure DĆ12: Pulse Width Modulation W aveform Description  $# !  "  ! !   $#       $#  ?[...]

  • Page 518

    Appendix D: Sample W aveform Library DĆ16 A WG2021 User Manual Made with the waveform editor . Figure DĆ13: PseudoĆRandom Pulse W aveform Description An MĆseries pseudoĆrandom signal is created using the waveform editor's timing display shift register generator function. ąRegister length = 15 ąPoints/step = 1 ąThe encoding is NRZ. When[...]

  • Page 519

    Appendix D: Sample W aveform Library A WG2021 User Manual DĆ17 The base band I-axis output for a digital cellular car telephone system is created on the T ektronix digital signal processing work system (DSPW). Bit rate Point number Clock frequency 42 Kbps 32 Kwords 21 kHz Figure DĆ14: π /4 DQPSK I Axis Signal The base band Q-axis output for a di[...]

  • Page 520

    Appendix D: Sample W aveform Library DĆ18 A WG2021 User Manual Made with the convolution waveform editor (Option 09). Figure DĆ16: W aveform for Magnetic Disk Readout Signal Description !# $" # &%! #!  # # %$# &%[...]

  • Page 521

    Appendix D: Sample W aveform Library A WG2021 User Manual DĆ19 Made with the waveform editor . Figure DĆ17: W aveform for Magnetic Disk Readout Signal Description Created a worstĆcase pattern with NRZI modulation using the bit set function of the waveform editor timing display . ą*WorstĆcase pattern (  01010101 10101010  ) ąPattern leng[...]

  • Page 522

    Appendix D: Sample W aveform Library DĆ20 A WG2021 User Manual NTSC color bar signals, NTSC Y -C separate signals and various kinds of NTSC signals are stored in the NTSC directory . These are NTSC video signals made up of 1 – 4 color fields and 1050 lines (525 x 2). The clock frequency is 16 times the sub-carrier frequency; a waveform is create[...]

  • Page 523

    Appendix D: Sample W aveform Library A WG2021 User Manual DĆ21 Figure DĆ18: Color Bar (Composite) Signal ($CB1-2H.SEQ) Figure D-19 shows the NTSC Y -C separate signal. Y (luminance signal) and C (chroma signal) have been created separately , so if these are output separately to channel 1 and channel 2 they will become Y -C separate signals; when [...]

  • Page 524

    Appendix D: Sample W aveform Library DĆ22 A WG2021 User Manual Luminance Signal Chroma Signal Figure DĆ19: NTSC Y ĆC separate signals Figure DĆ20: Multiburst Signal ($M-BURST .SEQ)[...]

  • Page 525

    Appendix D: Sample W aveform Library A WG2021 User Manual DĆ23 Figure DĆ21: Modulated Ramp Signal ($RAMP .SEQ) Figure DĆ22: Sweep Signal ($SWEEP .SEQ)[...]

  • Page 526

    Appendix D: Sample W aveform Library DĆ24 A WG2021 User Manual Figure DĆ23: SMPTE Color Bar Signal ($SMPTE.SEQ) Figure DĆ24: IYQB Signal ($IYQB.SEQ)[...]

  • Page 527

    Appendix D: Sample W aveform Library A WG2021 User Manual DĆ25 Figure DĆ25: Reversed Blue Bar signal ($RBLU.SEQ) Figure D-26 shows that the Color Bar signal, IYQB signal and Reversed Blue Bar signal are sequenced at the rate of 2:3:4 respectively . Figure DĆ26: Color Bar + IYQB signal + Reversed Blue Bar ($MIX.SEQ)[...]

  • Page 528

    Appendix D: Sample W aveform Library  A WG2021 User Manual[...]

  • Page 529

    A WG2021 User Manual EĆ1 Appendix E: Functional Operation Summary Introduction This summary shows the A WG2021 functional block diagrams, explains each block, and gives some operating precautions which are of practical value in understanding the fundamental operating concepts of the instrument. For convenience, some functional block diagrams show [...]

  • Page 530

    Appendix E: Functional Operation Summary EĆ2 A WG2021 User Manual Block Diagram Figure E-1 is a block diagram of the circuits from the clock oscillator to the digital-to-analog converter (DAC). Figure E-2 shows the block diagram continuing where Figure E-1 left off and goes until the output. The rest of this summary explains the individual blocks.[...]

  • Page 531

    Appendix E: Functional Operation Summary A WG2021 User Manual EĆ3   ! !   ! ! "    ! #         "  "?[...]

  • Page 532

    Appendix E: Functional Operation Summary EĆ4 A WG2021 User Manual The oscillator for internal clock use is normally a PLL (phase lock loop) type. It uses a liquid crystal oscillator that provides a stable 12.8 MHz signal. The clock oscillates from 250 MHz to 125 MHz. The minimum frequency resolution is 5 kHz and the frequency can be set with 4-dig[...]

  • Page 533

    Appendix E: Functional Operation Summary A WG2021 User Manual EĆ5 A WG2021 Parallel Operation. When more than two channel outputs are needed, connect as shown below .  Simple parallel operation. The SYNC output of the master A WG2021 is connected to the TRIGGER INPUT of the slave A WG2021. Figure E-4 shows a connection example.  [...]

  • Page 534

    Appendix E: Functional Operation Summary EĆ6 A WG2021 User Manual            Figure EĆ5: Connection Example 2 When there is only one trigger source output, connect to both A WG2021 instr[...]

  • Page 535

    Appendix E: Functional Operation Summary A WG2021 User Manual EĆ7                   Figure EĆ6: Connection Exam[...]

  • Page 536

    Appendix E: Functional Operation Summary EĆ8 A WG2021 User Manual T rigger Input, SYNC Output, and W aveform Timing. Figure E-7 shows the relationship between trigger input, SYNC output, and waveform timing. T rigger Input (Slope:Positive) SYNC Output (Start) W aveform Output (This delay changes if a filter is inserted.) About 10 ns 100 ns max Fig[...]

  • Page 537

    Appendix E: Functional Operation Summary A WG2021 User Manual EĆ9 This block comprises the sequence memory that stores the contents of sequence control, the counters that read out the contents of that memory , and output the actual waveform memory addresses. T able EĆ1: Sequence File (XXX.SEQ) File Name Repetition Count ?[...]

  • Page 538

    Appendix E: Functional Operation Summary EĆ10 A WG2021 User Manual W aveform Memory Clock (1/8) Length Counter Address Counter Looping Counter Sequence Memory Address Counter Sequence Memory AAA WFM Address AAA WFM Data Length Looping Control V alue Figure EĆ9: Relationship Between Sequence Memory and W aveform Memory The waveform memory comprise[...]

  • Page 539

    Appendix E: Functional Operation Summary A WG2021 User Manual EĆ1 1  !  !  !  !                !   ?[...]

  • Page 540

    Appendix E: Functional Operation Summary EĆ12 A WG2021 User Manual       Figure EĆ1 1: Relationship Between T riangular W ave Resolution and Number of Data Points For a triangular wave, extra waveform points beyond 8000 are meaningless. This appl[...]

  • Page 541

    Appendix E: Functional Operation Summary A WG2021 User Manual EĆ13 In Cont mode, the original data length is multiplied to make it a multiple of 8. For example, if the original waveform has 60 points, two of them are strung together to make a waveform with 120 points. However , in this case the SYNC output is only generated for every other wavefor[...]

  • Page 542

    Appendix E: Functional Operation Summary EĆ14 A WG2021 User Manual T able EĆ2: Output Signal Amplitude - External Modulation External Modulation Signal Output Signal Amplitude              W ith ± 1 V input, 100% amplitude modulation is po[...]

  • Page 543

    Appendix E: Functional Operation Summary A WG2021 User Manual EĆ15 An example is when the CH1 signal is amplitude modulated with the CH2 signal. If CH2 is set to an amplitude of 5 V and an offset of 2.5 V , a 100% modulated waveform is obtained. Internal AM mode is useful for such tasks as varying the amplitude of a certain part of a waveform in r[...]

  • Page 544

    Appendix E: Functional Operation Summary EĆ16 A WG2021 User Manual avoid overshooting and ringing. Figure E-14 shows representative characteris- tics.      0 10 20 30 40 50 60 0 123456 789 1 0 Figure EĆ14: Representative Filter Characteristics These[...]

  • Page 545

    Appendix E: Functional Operation Summary A WG2021 User Manual EĆ17 T able EĆ3: Filter Timer Delay Relative to SYNC Signals (Cont.) Filter Delay            Figure E-15 shows the time difference (t) between signals and SYNC signals.  ?[...]

  • Page 546

    Appendix E: Functional Operation Summary EĆ18 A WG2021 User Manual         Figure EĆ16: Attenuator Configuration These attenuators and the above x5 amp are selected automatically by setting the output voltage. This block gives an offset voltage to the output. This circuit is a power source tha[...]

  • Page 547

    A WG2021 User Manual FĆ1 Appendix F: Miscellaneous General Description This appendix covers the following items.  Horizontal axis scaling  Sampling theorem  Differentiation  Integration  Random (rnd) function  Pattern code  Logical operation  Fast Fourier T ransforms (FFT)  Repackaging for shipment  Factory settings H[...]

  • Page 548

    Appendix F: Miscellaneous FĆ2 A WG2021 User Manual Here is the equation for linear interpolation. f ( x ) + x–x i x i ) 1 –x i { f ( x i ) 1 ) –f ( x i ) } ) f ( x i ) Here, i is the waveform point number; i takes integer values i = 1, 2, ..., n.  . The number of points can be incr eased or decr eased, but the waveform may lose i[...]

  • Page 549

    Appendix F: Miscellaneous A WG2021 User Manual FĆ3 Sampling Theorem When the signal is continuous and the highest frequency component of the signal is f 0 , sampling with T e1/2f 0 loses none of the data contained in the signal. T is the sampling interval. This theorem is well known as the sampling theorem. If data is created to meet this theorem,[...]

  • Page 550

    Appendix F: Miscellaneous FĆ4 A WG2021 User Manual        n        n  Figure FĆ4: Equation Differentiation The values at the first and last points are obtained not from the center deviation, but from the following equations: First point f Ȁ ( x 1 ) [ n { – 3 f ( x 1 ) )[...]

  • Page 551

    Appendix F: Miscellaneous A WG2021 User Manual FĆ5 Integration The integ() function integrates numerically based on a trapezoidal formula. The trapezoidal formula is expressed with the following equation. ŕ f ( x ) dx [ ȍ n i + 1 f ( x i– 1 ) ) f ( x i ) 2 @  x +  x 2 { f ( x 1 ) ) 2 f ( x 2 ) ) 2 f ( x 3 ) ) AAA ) 2 f ( x n– 1 ) ) f ([...]

  • Page 552

    Appendix F: Miscellaneous FĆ6 A WG2021 User Manual Random (rnd) Function A random number generation algorithm uses an uniform distribution random generation routine and the central-limit theorem to derive Gaussian distribution random numbers. Central-limit theorem: when the independent random variables X 1 , X 2 ..., and X n conform to an identica[...]

  • Page 553

    Appendix F: Miscellaneous A WG2021 User Manual FĆ7 Pattern Codes On the A WG2021, it is possible to select the coding system used when pattern strings are output. If the code will be affected by the immediately preceding data, the data item just before the first item of data will be calculated as 0. The following tables show the coding systems. ?[...]

  • Page 554

    Appendix F: Miscellaneous FĆ8 A WG2021 User Manual  MFM (Modified FM) : Each pattern is made up of 2 data items. In the table below , data in parentheses () indicates the immediately preceding data of the data for which coding is being attempted. Here the output data is inverted every time when 1 appears in the codes. Pattern Code Conversion ?[...]

  • Page 555

    Appendix F: Miscellaneous A WG2021 User Manual FĆ9  f/2f : Each pattern is made up of 2 data items. In the table below , data in parentheses () indicates the immediately preceding data of the data for which coding is being attempted. Pattern Output Data         Example ?[...]

  • Page 556

    Appendix F: Miscellaneous FĆ10 A WG2021 User Manual  2-7 RLL : 2-item patterns are made up of 4 data items, 3-items pattern are made up of 6 data items and 4-item patterns are made up of 8 data items. Here the output data is inverted every time when 1 appears in the codes. Pattern Code Conversion      ?[...]

  • Page 557

    Appendix F: Miscellaneous A WG2021 User Manual FĆ1 1 NRZ1 Initial Src 0 Initial Code 0 Out[1/0] Invert/Keep Source Data Pattern Converted Code     RZ Initial Src 0 Initial Code 0 Out[1/0] High/Low Source Data Pattern Converted Code     BIPHASE Initial Src 0 Initial Code 0 Out[1/0] High/Low Source Data Pattern Co[...]

  • Page 558

    Appendix F: Miscellaneous FĆ12 A WG2021 User Manual MFM Initial Src 0 Initial Code 0 Out[1/0] Invert/Keep Source Data Pattern Converted Code     f/2f Initial Src 0 Initial Code 0 Out[1/0] Invert/Keep Source Data Pattern Converted Code     1-7 RLL Initial Src 0 Initial Code 0 Out[1/0] Invert/Keep Source Data Patt[...]

  • Page 559

    Appendix F: Miscellaneous A WG2021 User Manual FĆ13 2-7 RLL Initial Src 0 Initial Code 0 Out[1/0] Invert/Keep Source Data Pattern Converted Code                [...]

  • Page 560

    Appendix F: Miscellaneous FĆ14 A WG2021 User Manual  NAND A B A*B               OR A B A+B             [...]

  • Page 561

    Appendix F: Miscellaneous A WG2021 User Manual FĆ15  NOR A B A+B               EX-OR AB A  B              ⊕ [...]

  • Page 562

    Appendix F: Miscellaneous FĆ16 A WG2021 User Manual  EX-NOR AB A  B              ⊕  FFT (Fast Fourier T ransforms) FFT is an algorithm for fast calculation of discrete Fourier transform. FFT transforms the time axis signal onto the frequency axis. FFT can also provide [...]

  • Page 563

    Appendix F: Miscellaneous A WG2021 User Manual FĆ17 maximum permitted frequency is called the Nyquist frequency and is 1/2 the sampling rate. If the signal has frequency components above the Nyquist frequency , they appear on this limited discrete frequency axis too. They appear as no different than noise aliased from the Nyquist frequency . For e[...]

  • Page 564

    Appendix F: Miscellaneous FĆ18 A WG2021 User Manual  π   π   _ Figure FĆ6: Phase and Delay FFT calculates with limited data blocks. Also, since FFT calculations assume that the sampled data blocks are repeated infinitely , frequency error arises from non-continu[...]

  • Page 565

    Appendix F: Miscellaneous A WG2021 User Manual FĆ19              ?[...]

  • Page 566

    Appendix F: Miscellaneous FĆ20 A WG2021 User Manual Square W ave Window . The square wave window does not taper the time region data. The filter shape in the frequency region is sin(x)/x. The square wave window is appropriate for observing the frequency spectrum of non-repetitive signals. The square wave window is also used for observing frequency[...]

  • Page 567

    Appendix F: Miscellaneous A WG2021 User Manual FĆ21 Hamming Window . The hamming window is similar to a hanning window , but it suppresses more the transmissivity for the side lobes next to the transmitting bandwidth. Compared to FFT processing using a hanning window , the degree of separation between two frequencies is greater , as can be seen in[...]

  • Page 568

    Appendix F: Miscellaneous FĆ22 A WG2021 User Manual Blackman Window . The Blackman window suppresses the side lobe magnitudes in the frequency region lower than the hamming window does and suppresses leakage even farther . However , it has inferior frequency resolution. # "!  !&qu[...]

  • Page 569

    Appendix F: Miscellaneous A WG2021 User Manual FĆ23 Repackaging for Shipment If this instrument is shipped by commercial transportation, use the original packaging material. Unpack the instrument carefully from the shipping container to save the carton and packaging material for this purpose. If the original packaging is unfit for use or is not av[...]

  • Page 570

    Appendix F: Miscellaneous FĆ24 A WG2021 User Manual Factory Settings When Reset to Factory is selected from the UTILITY Misc menu, this instrument’ s parameters are reset to the values they had at the factory . T able F-1 lists these factory settings. T able FĆ1: Factory Settings Setup Menu Clock Frequency 100.00 MHz Clock Source Internal CH1 O[...]

  • Page 571

    Appendix F: Miscellaneous A WG2021 User Manual FĆ25 T able FĆ1: Factory Settings (Cont.) FG Menu            The following UTILITY menu settings are not af fected by Reset to Factory . Remot[...]

  • Page 572

    Appendix F: Miscellaneous  A WG2021 User Manual[...]

  • Page 573

    A WG2021 User Manual GĆ1 Appendix G: Inspection and Cleaning Inspect and clean the instrument as often as operating conditions require. The collection of dirt can cause instrument overheating and breakdown. Dirt acts as an insulating blanket, preventing efficient heat dissipation. Dirt also provides an electrical conduction path that can cause an [...]

  • Page 574

    Appendix G: Inspection and Cleaning GĆ2 A WG2021 User Manual T o clean the instrument exterior, do the following:   T o avoid injury or death, unplug the power cor d fr om line voltage befor e cleaning the instrument. T o avoid getting moisture inside the instrument during external cleaning, use only enough liquid to dampen[...]