Tektronix TDS 700C manuale d’uso

User Manual TDS 500C, TDS 600B & TDS 700C Digitizing Oscilloscopes 070-9869-00 This document applies for firmware version 1.0 and above.[...]

Copyright  T ektronix, Inc. All rights reserved. Licensed software products are owned by T ektronix or its suppliers and are protected by United States copyright laws and international treaty provisions. Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in T echnica[...]

W ARRANTY T ektronix warrants that this product will be free from defects in materials and workmanship for a period of three (3) years 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 will provide a[...]

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TDS 500C, TDS 600B, & TDS 700C User Manual i T able of Contents General Safety Summary xi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Preface xiii . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Related Manuals xiii . . . . . . . . . . . . . . . . . . . . . . . . [...]

T able of Contents ii TDS 500C, TDS 600B, & TDS 700C User Manual T riggering on Pulses 3–89 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Communications T riggering 3–103 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Delayed T riggering 3–106 . . . . . . . .[...]

T able of Contents TDS 500C, TDS 600B, & TDS 700C User Manual iii List of Figures Figure 1–1: Rear Panel Contr ols Used in Start Up 1–7 . . . . . . . . . . . . . . . Figure 1–2: ON/STBY Button 1–8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 2–1: Connecting a Pr obe for the Examples (P6245 shown) 2–10 . . F[...]

T able of Contents iv TDS 500C, TDS 600B, & TDS 700C User Manual Figure 3–14: Equivalent-T ime Sampling 3–27 . . . . . . . . . . . . . . . . . . . . . . . Figure 3–15: How the Acquisition Modes W ork 3–31 . . . . . . . . . . . . . . . . . Figure 3–16: Acquisition Menu and Readout 3–33 . . . . . . . . . . . . . . . . . . . . Figure 3[...]

T able of Contents TDS 500C, TDS 600B, & TDS 700C User Manual v Figure 3–51: Delayed T riggerable 3–107 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3–52: How the Delayed T riggers W ork 3–109 . . . . . . . . . . . . . . . . . . . Figure 3–53: Delayed T rigger Menu 3–1 1 1 . . . . . . . . . . . . . . . . . . . . [...]

T able of Contents vi TDS 500C, TDS 600B, & TDS 700C User Manual Figure 3–87: Initial Help Scr een 3–182 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3–88: Comparing a W aveform to a Limit T emplate 3–184 . . . . . . . . Figure 3–89: Acquire Menu — Cr eate Limit T est T emplate 3–185 . . . . . . . . Figure 3?[...]

T able of Contents TDS 500C, TDS 600B, & TDS 700C User Manual vii List of T ables T able 1–1: Key Features and differ ences of models 1–2 . . . . . . . . . . . . . . T able 1–2: Fuse and fuse cap part numbers 1–7 . . . . . . . . . . . . . . . . . . . . T able 3–1: Autoset defaults 3–9 . . . . . . . . . . . . . . . . . . . . . . . . [...]

T able of Contents viii TDS 500C, TDS 600B, & TDS 700C User Manual[...]

TDS 500C, TDS 600B, & TDS 700C User Manual ix General Safety Summary Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it. T o avoid potential hazards, use this product only as specified. Only qualified personnel should perform service pr ocedur es. Use Proper Power Cord. Use[...]

General Safety Summary x TDS 500C, TDS 600B, & TDS 700C User Manual Do Not Operate in Wet/Damp Conditions. Do Not Operate in an Explosive Atmosphere. Keep Product Surfaces Clean and Dry . Provide Proper V entilation. Refer to the manual’ s installation instructions for details on installing the product so it has proper ventilation. T erms in [...]

TDS 500C, TDS 600B, & TDS 700C User Manual xi Preface This is the User Manual for the TDS 500C, TDS 600B, & TDS 700C Digitizing Oscilloscopes. The chapter Getting Started briefly describes the TDS Oscilloscope, prepares you to install it, and tells you how to put it into service. The chapter Operating Basics covers basic principles of the o[...]

Preface xii TDS 500C, TDS 600B, & TDS 700C User Manual Default Model This manual documents the TDS 500C, TDS 600B, & TDS 700C Digitizing Oscilloscopes. T ake special note of the following conventions:  Some TDS models have two auxiliary channels called AUX 1 and AUX 2, instead of CH 3 and CH 4. References to these channels default to CH [...]

Preface TDS 500C, TDS 600B, & TDS 700C User Manual xiii  Names also appear in the same case (initial capitals or all uppercase) in the manual as is used on the oscilloscope front panel and menus. Front panel names are all upper case letters, for example, VERTICAL MENU and CH 1 .  Instruction steps are numbered. The number is omitted if th[...]

Preface xiv TDS 500C, TDS 600B, & TDS 700C User Manual[...]

Getting Started[...]

TDS 500C, TDS 600B, & TDS 700C User Manual 1–1 Product Description The T ektronix TDS Oscilloscope is a superb tool for acquiring, displaying, and measuring waveforms. Its performance addresses the needs of both benchtop lab and portable applications with the following features: H A maximum sample rate of up to 5 GS/s per channel, depending o[...]

Product Description 1–2 TDS 500C, TDS 600B, & TDS 700C User Manual Differences by Model T able 1–1 lists some key TDS features and relates them to the different TDS models that this manual covers. T able 1–1: Key Features and differences of models Feature 520C 540C 620B 644B 680B 684B 724C 754C 784C No. of channels 2+2 1 4 2 + 2 1 4 2 + 2[...]

Product Description TDS 500C, TDS 600B, & TDS 700C User Manual 1–3 Product Specification The product specification is found in the technical reference TDS 500C, TDS 600B, & TDS 700C T echnical Refer ence (Performance V erification and Specifications) that is shipped as a standard accessory with the TDS Oscillo- scope.[...]

Product Description 1–4 TDS 500C, TDS 600B, & TDS 700C User Manual[...]

TDS 500C, TDS 600B, & TDS 700C User Manual 1–5 Start Up Before you use the TDS Oscilloscope, ensure that it is properly installed and powered on. Preparation T o ensure maximum accuracy for your most critical measurements, you should know about signal path compensation and the proper use of the probe you choose to use with your oscilloscope. [...]

Start Up 1–6 TDS 500C, TDS 600B, & TDS 700C User Manual CAUTION. Using the P6243 or P6245 Active Pr obe to measur e signals gr eater than ± 40 volts may damage the pr obe. Be sure to choose the proper input coupling and impedance for the probe or other cabling you use to couple signals to your oscilloscope. Y ou should read Input Impedance C[...]

Start Up TDS 500C, TDS 600B, & TDS 700C User Manual 1–7 Power Connector Principal Power Switch Fuse Figure 1–1: Rear Panel Controls Used in Start Up 5. Connect the proper power cord from the rear-panel power connector (see Figure 1–1) to the power system. T able 1–2: Fuse and fuse cap part numbers Fuse Fuse part number Fuse cap part num[...]

Start Up 1–8 TDS 500C, TDS 600B, & TDS 700C User Manual ON/STBY Button Figure 1–2: ON/STBY Button The ON/STBY button controls power to most of the instrument circuits. Power continues to go to certain parts even when this switch is set to STBY . Once the oscilloscope is installed, it is typical to leave the principal power switch on and use[...]

Operating Basics[...]

TDS 500C, TDS 600B, & TDS 700C User Manual 2–1 Overview This chapter describes the basic concepts of operating the TDS Oscilloscope. Understanding the basic concepts of your oscilloscope will help you use it much more effectively . The first section, Operating Interface Maps , quickly shows you how the oscilloscope controls are organized and [...]

Overview 2–2 TDS 500C, TDS 600B, & TDS 700C User Manual[...]

TDS 500C, TDS 600B, & TDS 700C User Manual 2–3 Operating Interface Maps This section contains illustrations, or maps, of the display , the front and rear panels, and the menu system of the TDS Oscilloscope. These maps will help you understand and operate the oscilloscope. This section also contains a visual guide to using the menu system. Fro[...]

Operating Interface Maps 2–4 TDS 500C, TDS 600B, & TDS 700C User Manual Front Panel Map — Right Side Hardcopy , page 3–164 File System, page 3–160 Autoset, page 3–8 Help, page 3–181 Status, page 3–179 Selecting Channels, page 3–1 1 Horizontal Controls, page 3–19 Acquisition Modes, page 3–29 Cursor Measurements, page 3–126 [...]

Operating Interface Maps TDS 500C, TDS 600B, & TDS 700C User Manual 2–5 Rear Panel Map Rear Panel Connectors Security Bracket GPIB Connector , page 3–174 Centronics Connector Principal Power Switch, page 1–7 Serial Number SIGNAL OUTPUT – (Provides Analog Signal Output from CH3 – or AX1 – @ 10 mV/div) AUX TRIGGER INPUT – (Provides [...]

Operating Interface Maps 2–6 TDS 500C, TDS 600B, & TDS 700C User Manual Display Map The value entered with the general purpose knob or keypad. Channel level and waveform source. The main menu with choices of major actions The side menu with choices of specific actions. V ertical scale, page 3–15 Horizontal scale and time base type, page 3?[...]

Operating Interface Maps TDS 500C, TDS 600B, & TDS 700C User Manual 2–7 T o Operate a Menu 1 Press front-panel menu button. (Press SHIFT first if button label is blue.) 2 Press one of these buttons to select from main menu. 3 Press one of these buttons to select from side menu (if displayed). 4 If side menu item has an adjustable value (shown[...]

Operating Interface Maps 2–8 TDS 500C, TDS 600B, & TDS 700C User Manual T o Operate a Pop-Up Menu Press to display pop-up menus. Press it again to make selection. Alternatively , press SHIFT first to make selection in the opposite direction. A pop-up selection changes the other main menu titles. Press here to remove menus from screen.[...]

TDS 500C, TDS 600B, & TDS 700C User Manual 2–9 T utorial This section quickly makes you acquainted with some of the fundamental operations required to use the TDS Oscilloscope to take measurements. Start this tutorial by doing Setting Up for the Examples on this page. Setting Up for the Examples Perform the following tasks to connect input si[...]

T utorial 2–10 TDS 500C, TDS 600B, & TDS 700C User Manual Signal Gnd Figure 2–1: Connecting a Probe for the Examples (P6245 shown) Do the following steps to reset the oscilloscope to a known factory default state before doing the examples. (Y ou can reset the oscilloscope anytime you begin a new task and need to “start fresh” with known[...]

T utorial TDS 500C, TDS 600B, & TDS 700C User Manual 2–1 1 SETUP Button Figure 2–2: SETUP Button Location The oscilloscope displays main menus along the bottom of the screen. Figure 2–3 shows the Setup main menu. Recall Factory Setup Menu Item and Button OK Confirm Factory Init Menu Item and Button Figure 2–3: The Setup Menu 2. Press th[...]

T utorial 2–12 TDS 500C, TDS 600B, & TDS 700C User Manual NOTE . This manual uses the following notation to r epr esent the sequence of selections you made in steps 1, 2 and 3: Press save/recall SETUP ➞ Recall Factory Setup (main) ➞ OK Confirm Factory Init (side). Note that a clock icon appears on screen. The oscilloscope displays this ic[...]

T utorial TDS 500C, TDS 600B, & TDS 700C User Manual 2–13  The trigger r eadout shows that the oscilloscope is triggering on channel 1 (Ch1) on a rising edge, and that the trigger level is about 200–300 mV .  The time base r eadout shows that the main time base is set to a horizontal scale of 500  s/div .  The channel r eadout i[...]

T utorial 2–14 TDS 500C, TDS 600B, & TDS 700C User Manual The display shows the probe compensation signal. It is a 1 kHz square wave of approximately 0.5 V amplitude. Figure 2–6 shows the main VER TICAL and HORIZONT AL sections of the front panel. Each has SCALE and POSITION knobs. Do the following steps to adjust the size and placement of [...]

T utorial TDS 500C, TDS 600B, & TDS 700C User Manual 2–15 When you first connect a signal to a channel and display it, the signal displayed may not be scaled and triggered correctly . Use the autoset function and you should quickly get a meaningful display . Y ou should have a stable display of the probe compensation waveform from the last st[...]

T utorial 2–16 TDS 500C, TDS 600B, & TDS 700C User Manual AUTOSET Button Figure 2–8: AUTOSET Button Location Figure 2–9 shows the display after pressing AUTOSET . If necessary , you can adjust the waveform now by using the knobs discussed earlier in this example. Figure 2–9: The Display After Pressing Autoset[...]

T utorial TDS 500C, TDS 600B, & TDS 700C User Manual 2–17 NOTE . If you ar e using a passive pr obe, such as the P6139A pr obe, the corners on your displayed signal may look r ounded or pointed. (See Figur e 2–10.) If so, then you may need to compensate your pr obe. See T o Compensate Passive Probes on page 3–6. Figure 2–10: Display Sig[...]

T utorial 2–18 TDS 500C, TDS 600B, & TDS 700C User Manual Figure 2–1 1: The Channel Buttons and Lights Each of the channel (CH) buttons has a light behind its label. Right now , the CH 1 light is on. That light indicates that the vertical controls are set to adjust channel 1. Do the following steps to add a waveform to the display: 1. If yo[...]

T utorial TDS 500C, TDS 600B, & TDS 700C User Manual 2–19  There are two channel indicators at the left edge of the graticule. Right now , they overlap.  The light above the CH 2 button is now on, and the CH 1 light is off. Because the knobs control only one channel at a time, the vertical controls are now set to adjust channel 2.  T[...]

T utorial 2–20 TDS 500C, TDS 600B, & TDS 700C User Manual Ch2 Reference Indicator Side Menu Title Figure 2–12: The V ertical Main Menu and Coupling Side Menu Pressing a channel (CH) button sets the vertical controls to that channel. It also adds the channel to the display if that waveform is not already displayed. T o explore assigning cont[...]

T utorial TDS 500C, TDS 600B, & TDS 700C User Manual 2–21 Side Menu Title Figure 2–13: The Menus After Changing Channels Pressing the W A VEFORM OFF button removes the waveform for the currently selected channel. If the waveform you want to remove is not already selected, select that channel using the channel (CH) button. 1. Press W A VEFOR[...]

T utorial 2–22 TDS 500C, TDS 600B, & TDS 700C User Manual Example 3: T aking Automated Measurements The TDS Oscilloscope can measure many waveform parameters automatically and read out the results on screen. Do the following tasks to discover how to set up the oscilloscope to measure waveforms automatically . (For information on additional me[...]

T utorial TDS 500C, TDS 600B, & TDS 700C User Manual 2–23 Observe that the frequency measurement appears within the right side of the graticule area. The measurement readout includes the notation Ch1 , meaning that the measurement is taken on the channel 1 waveform. (T o take a measurement on another channel, select that channel, and then sel[...]

T utorial 2–24 TDS 500C, TDS 600B, & TDS 700C User Manual Use the Measure menu to remove waveforms you no longer want. T o remove a measurement individually (you can also remove them, as a group), do the following step: 1. TDS 600B: Press MEASURE ➞ Remove Measrmnt (main) ➞ Measur e- ment 1 , Measurement 2 , and Measur ement 4 (side) to re[...]

T utorial TDS 500C, TDS 600B, & TDS 700C User Manual 2–25 T o examine the current values, press Level Setup (main) ➞ High Ref (side). The General Purpose Knob. The general purpose knob, the large knob, is now set to adjust the high reference level (Figure 2–16.) There are several important things to observe on the screen:  The knob ico[...]

T utorial 2–26 TDS 500C, TDS 600B, & TDS 700C User Manual General Purpose Knob Setting and Readout Highlighted Menu Item with Boxed Readout V alue General Purpose Knob Icon Figure 2–16: General Purpose Knob Indicators The Numeric Keypad. Any time the general purpose knob is set to adjust a numeric parameter , you can enter the value as a nu[...]

T utorial TDS 500C, TDS 600B, & TDS 700C User Manual 2–27 1. Press Low Ref (side). 2. On the numeric keypad, press the 2 , the 0 , and the ENTER ( ) buttons, which sets the low measurement reference to 20%. Observe that the rise-time value has changed. 3. Press Remove Measrmnt (main) ➞ All Measur ements (side). That returns the display to i[...]

T utorial 2–28 TDS 500C, TDS 600B, & TDS 700C User Manual Figure 2–17: Snapshot of Channel 1 Example 4: Saving Setups The TDS Oscilloscope can save its controls settings and recall them later to quickly re-establish a setup. It provides ten storage locations to store up to ten setups. It also provides a file system, so that you can also sav[...]

T utorial TDS 500C, TDS 600B, & TDS 700C User Manual 2–29 First, you need to create an instrument setup you want to save. Perform the following steps to create and save a setup that is complex enough that you might prefer not to go through all these steps each time you want that display: 1. If you are not continuing from the previous example,[...]

T utorial 2–30 TDS 500C, TDS 600B, & TDS 700C User Manual Figure 2–18: Save/Recall Setup Menu 8. Press one of the T o Setup side menu buttons to store the current instrument settings into that setup location. Remember which setup location you selected for use later . There are more setup locations than can be listed at one time in the side [...]

T utorial TDS 500C, TDS 600B, & TDS 700C User Manual 2–31 T o recall the setup, press SA VE/RECALL SETUP ➞ Recall Saved Set- up (main) ➞ Recall Setup (side) for the setup location you used in the last exercise. The positive width measurement is now removed from the display because you selected it after you saved the setup. The step just p[...]

T utorial 2–32 TDS 500C, TDS 600B, & TDS 700C User Manual[...]

Reference[...]

TDS 500C, TDS 600B, & TDS 700C User Manual 3–1 Overview This chapter describes in detail how to perform the operating tasks you must do to measure, test, process, or save and document your waveforms. It leads with three sections on the fundamental tasks of acquiring, stably displaying, and taking measurements on waveforms:  Acquiring and D[...]

Overview 3–2 TDS 500C, TDS 600B, & TDS 700C User Manual Coupling W aveforms to the Oscilloscope 3–5 . . . . . . . . . . . . . . . . . . . . . . . . . Setting up Automatically: Autoset and Reset 3–8 . . . . . . . . . . . . . . . . . . . . . . Selecting Channels 3–1 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

Overview TDS 500C, TDS 600B, & TDS 700C User Manual 3–3 Displaying Status 3–179 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Displaying the Banner 3–181 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Displaying Help 3–181 . . . . . . . . . . . . . . . . . . . . [...]

Overview 3–4 TDS 500C, TDS 600B, & TDS 700C User Manual[...]

TDS 500C, TDS 600B, & TDS 700C User Manual 3–5 Acquiring and Displaying W aveforms T o use the TDS Oscilloscope to measure or monitor waveforms, you need to know how to acquire, select, and display those waveforms properly . T o help you do so, this section describes how to do the following tasks:  How to couple waveforms to the oscillosco[...]

Acquiring and Displaying W aveforms 3–6 TDS 500C, TDS 600B, & TDS 700C User Manual The remaining TDS 500C, TDS 600B, and TDS 700C oscilloscopes ship with general-purpose probes — either the P6139A or the P6243, depending on the oscilloscope model. The standard-accessory probes and quantities shipped for these oscilloscopes are listed in Sta[...]

Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–7 5. TDS 500C and 700C models only: Press SHIFT ACQUIRE MENU ➞ Mode (main) ➞ Hi Res (side). 6. TDS 600B models only: Press SHIFT ACQUIRE MENU ➞ Mode (main) ➞ A verage (side). Use the keypad to set A verages to 5. 7. Adjust the probe until you see a square[...]

Acquiring and Displaying W aveforms 3–8 TDS 500C, TDS 600B, & TDS 700C User Manual  The oscilloscope switches to 50 W and disables AC coupling (and switches coupling to DC if AC is selected) if you connect an active probe, such as the P6245 probe. Such probes also reduce the maximum volts/div to 10 V as just described. This behavior result[...]

Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–9 Do the following steps to automatically set up the oscilloscope: 1. Press the channel selection button (such as CH 1 ) corresponding to your input channel to make it active. 2. Press AUTOSET . If you use Autoset when one or more channels are displayed, the osci[...]

Acquiring and Displaying W aveforms 3–10 TDS 500C, TDS 600B, & TDS 700C User Manual T able 3–1: Autoset defaults (Cont.) Control Changed by autoset to Display Style V ectors Display Intensity — Overall If less than 50%, set to 75% Display Format YT FastFrame (TDS 500C and 700C Models Only) Off Horizontal Position Centered within the grati[...]

Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–1 1 Do the following steps to reset the oscilloscope to its factory default settings: 1. Press the Save/Recall SETUP button to display the Setup menu (see Fig - ure 3–3 ). Press the button directly below the Recall Factory Setup menu item. 2. Press the button t[...]

Acquiring and Displaying W aveforms 3–12 TDS 500C, TDS 600B, & TDS 700C User Manual Channel Readout Channel Reference Indicator Figure 3–3: The Channel Readout T o select a channel, use the channel selection buttons on the right of the display . These buttons labeled CH 1 , CH 2 , CH 3 , CH 4 , and MORE select a channel and display it if it[...]

Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–13 Do the following steps to first display and then remove waveforms from the display: 1. Press CH 1, CH 2, CH 3 , or CH 4 to turn on as many of these channels as desired. The one you select last (or first if you only select one) becomes the selected channel. Sel[...]

Acquiring and Displaying W aveforms 3–14 TDS 500C, TDS 600B, & TDS 700C User Manual T o read about selecting reference waveforms, see Saving and Recalling W aveforms on page 3–154. T o read about selecting (and creating) math waveforms, see W aveform Math on page 3–188. Scaling and Positioning W aveforms The TDS Oscilloscope allows you to[...]

Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–15 Original Position Positioned Vertically Positioned Horizontally Original Scale Scaled Horizontally Record View Channel Reference Icon Scaled V ertically Acquisition View Figure 3–5: Scaling and Positioning The TDS Oscilloscope permits you to change vertical [...]

Acquiring and Displaying W aveforms 3–16 TDS 500C, TDS 600B, & TDS 700C User Manual 3. T o make positioning faster , press the SHIFT button. When the light above the SHIFT button is on and the display says Coarse Knobs in the upper right corner , the POSITION knob positions waveforms more quickly . The POSITION knob simply adds screen divisio[...]

Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–17 T o select the coupling, bandwidth, and offset for the selected waveform, use the V ertical menu (Figure 3–6). This menu also lets you numerically change the position or scale instead of using the vertical knobs. T o make such changes, do the following proce[...]

Acquiring and Displaying W aveforms 3–18 TDS 500C, TDS 600B, & TDS 700C User Manual Fine Scale. T o make fine adjustments to the vertical scale, press VER TICAL MENU ➞ Fine Scale (main) and use the general purpose knob or the keypad. Position. T o adjust the vertical position to a specific number of divisions, press VER TICAL MENU ➞ Posit[...]

Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–19 Check the T ime Base r eadout at the lower right of the display to see the time/division settings and the time base (main or delayed) being referred to. (See Figure 3–7. Also see Figure 3–5 on page 3–15.) Since all live waveforms use the same time base, [...]

Acquiring and Displaying W aveforms 3–20 TDS 500C, TDS 600B, & TDS 700C User Manual 2. If you want the POSITION knob to move faster , press the SHIFT button. When the light above the shift button is on and the display says Coarse Knobs in the upper right corner , the POSITION knob positions waveforms more quickly . Figure 3–8: Horizontal Co[...]

Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–21 T rigger Position. The trigger point marks time zero in a waveform or acquisition (in Extended Acquisition mode) record. All record points before the trigger event make up the pretrigger portion of the record. Every record point after the trigger event is part[...]

Acquiring and Displaying W aveforms 3–22 TDS 500C, TDS 600B, & TDS 700C User Manual 2. T o fit an acquired waveform (or with Extended Acquisition On, an acquisi- tion) to the visible screen, regardless of record length, press HORIZONT AL MENU ➞ Record Length (main). Then toggle Fit to Screen to ON from the side menu. T hi s f ea tu re f it [...]

Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–23 NOTE . T o function pr operly , Extended acquisition mode for ces some oscilloscope modes and settings to new values. Also, measur ements, gating, math, and cursors ar e restricted to the curr ent waveform r ecor d. Extended-length Acquisition Record W aveform[...]

Acquiring and Displaying W aveforms 3–24 TDS 500C, TDS 600B, & TDS 700C User Manual  Wfm Len displays the length of the waveform record. The settings for Record Length in the Horizontal menu and for Extended Acquisition mode (on or off) determine the length.  Acq Duration displays the time spanned by the acquisition data.  W aveform [...]

Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–25 T o perform tutorials that teach selecting, scaling, and positioning of waveforms, see Example 1: Displaying a W aveform on page 2–13 and Example 2: Displaying Multiple W aveforms on page 2–17 . T o learn how to use delay with waveforms, see Delayed T rigg[...]

Acquiring and Displaying W aveforms 3–26 TDS 500C, TDS 600B, & TDS 700C User Manual The oscilloscope uses the samples it takes (see Figure 3–13) to create a waveform record containing a user-specified number of data or record points. Each record point represents a certain voltage level that occurs a determined amount of t im e fr om th e t [...]

Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–27 A TDS 500C or TDS 700C model oscilloscope (the TDS 600B models use only real time sampling) uses equivalent time sampling to extend its sample rate over its real-time maximum sampling rate, but only under two conditions:  Y ou must have turned equivalent-ti[...]

Acquiring and Displaying W aveforms 3–28 TDS 500C, TDS 600B, & TDS 700C User Manual Y our oscilloscope can interpolate between the samples it acquires. Like for equivalent time sampling, it does so only when it cannot obtain all the r eal samples it needs to fill up its waveform record. For instance, setting the horizontal SCALE to progressiv[...]

Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–29 A TDS 500C or TDS 700C Oscilloscope can interleave its channels to attain higher digitizing rates without equivalent time sampling or interpolating. The oscilloscope applies the digitizing resources of unused channels (that is, channels that are turned off) to[...]

Acquiring and Displaying W aveforms 3–30 TDS 500C, TDS 600B, & TDS 700C User Manual Figure 3–15 illustrates the different modes and lists the benefits of each. It will help you select the appropriate mode for your application. Refer to it as your read the following descriptions of each mode. Sample Mode. In Sample mode, the oscilloscope cre[...]

Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–31 W aveform Drawn on CRT Samples Acquired in Four Acquisition Intervals Displayed Record Points Acquisition Mode Use for fastest acquisition rate. This is the default mode. Use to reduce apparent noise. Provides the benefits of averaging with the speed of a sing[...]

Acquiring and Displaying W aveforms 3–32 TDS 500C, TDS 600B, & TDS 700C User Manual Hi Res Mode. TDS 500C and 700C models only: Hi Res mode averages all samples taken during an acquisition interval to create a record point. The average results in a higher-resolution, lower -bandwidth waveform. A key advantage of Hi Res is its potential for in[...]

Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–33 T o determine the acquisition sampling rate, the acquisition state (running or stopped), and the acquisition mode, check the Acquisition readout at the top of the display . (See Figure 3–16.) The state “Run:” shows the sample rate and acquisition mode. T[...]

Acquiring and Displaying W aveforms 3–34 TDS 500C, TDS 600B, & TDS 700C User Manual NOTE . TDS 500C and 700C models only: Selecting Hi Res mode in the Acquir e menu automatically r educes long r ecor d-length settings to pr event overflow of acquisition memory . Because Hi Res mode uses twice the acquisition memory used by other acquisition m[...]

Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–35 Check T able 3–4 below to determine the time base setting(s) at which the switch from real-time sampling (R T) to equivalent time sampling or interpolation (ETI) occurs for your model. T able 3–4: TDS 500C and TDS 700C Sampling mode selection (when fit to [...]

Acquiring and Displaying W aveforms 3–36 TDS 500C, TDS 600B, & TDS 700C User Manual Figure 3–17: Acquire Menu — Stop After  Press RUN/STOP button only (side) to use the RUN/ST OP button to start or stop acquiring. Pressing the RUN/STOP button once will stop the acquisitions. The upper left hand corner in the display will say “Stop”[...]

Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–37 NOTE . T o quickly select Single Acquisition Sequence without displaying the Acquir e and Stop After menus, pr ess SHIFT FORCE TRIG. Now the RUN/STOP button operates as just described. (Y ou still must display the Acquir e menu and then the Stop After menu to [...]

Acquiring and Displaying W aveforms 3–38 TDS 500C, TDS 600B, & TDS 700C User Manual Methods to Check and Eliminate. T o quickly check for aliasing, slowly increase the horizontal scale (time per division setting). If the shape of the displayed waveform changes drastically or becomes stable at a faster time base setting, your waveform was prob[...]

Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–39 T o bring up the Display menu: Press DISPLA Y ➞ Settings (main) ➞ Display (pop-up). The Display menu allows you to adjust the style, intensity level, graticule, and format features described below . The Color menu allows you to alter color settings for var[...]

Acquiring and Displaying W aveforms 3–40 TDS 500C, TDS 600B, & TDS 700C User Manual Figure 3–19: Display Menu — Style NOTE . TDS 500C and TDS 700C models only: See Using InstaV u  Acquisition Mode, on page 3–55 , t o see how Style setup differs for InstaV u mode. Intensity lets you set text/graticule and waveform intensity (brightnes[...]

Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–41 1. TDS 600B: Press DISPLA Y ➞ Readout Options (main). TDS 500C and TDS 700C Models: Press DISPLA Y ➞ Mode (main) ➞ Normal (pop-up) ➞ Format/RO (main). 2. T oggle Display ‘T’ @ T rigger Point (side) to select whether or not to display ‘T’ indica[...]

Acquiring and Displaying W aveforms 3–42 TDS 500C, TDS 600B, & TDS 700C User Manual Sometimes, especially when using the hardcopy feature, you may want to display the current date and time on screen. (T o find more information displaying and setting date and time, see Date/T ime Stamp the Har dcopy on page 3–168.) 4. Press Display Date/Time[...]

Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–43 NOTE . Selecting either NTSC or P AL graticules automatically changes the vertical scale, position settings, coupling, and sets to zer o any vertical offset of any channel displayed. These settings ar e not r estor ed after switching to other graticule types. [...]

Acquiring and Displaying W aveforms 3–44 TDS 500C, TDS 600B, & TDS 700C User Manual Since selecting YT or XY affects only the display , the horizontal and vertical scale and position knobs and menus control the same parameters regardless of the mode selected. Specifically , in XY mode, the horizontal scale will continue to control the time ba[...]

Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–45 Figure 3–21: Display Menu — Setting T o choose a palette of 13 colors from a menu of preset palettes: 1. Choose the starting palette by selecting Palette from the main menu. 2. Select one of the available palettes in the side menu. Choose from Normal , Bol[...]

Acquiring and Displaying W aveforms 3–46 TDS 500C, TDS 600B, & TDS 700C User Manual NOTE . Use at higher r oom temperatur es or with higher intensity display formats, such as the white fields in the Har dcopy Pr eview palette, can temporarily degrade display quality . Y ou can select the Har dcopy Pr eview palette when using certain color har[...]

Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–47 ScrTxt Figure 3–22: Display Menu — Palette Colors T o define math waveform colors: 1. Choose to define math waveform colors by selecting the main menu Map Math item. 2. Select one of the three math waveforms by pressing Math in the side menu. 3. If you wan[...]

Acquiring and Displaying W aveforms 3–48 TDS 500C, TDS 600B, & TDS 700C User Manual 2. Select one of the four reference waveforms by pressing Ref in the side menu. 3. T o assign the selected reference waveform to a specific color , press (repeatedly) Color and choose the value. 4. T o make the selected reference waveform the same color as the[...]

Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–49 2. Select the object(s) you want to restore by pressing Reset Curr ent Palette T o Factory , Reset All Palettes T o Factory or Reset All Mappings T o Factory in the side menu. Figure 3–24: Display Menu — Restore Colors Zooming on W aveforms The TDS Oscillo[...]

Acquiring and Displaying W aveforms 3–50 TDS 500C, TDS 600B, & TDS 700C User Manual T o help you use zoom effectively , consider how it operates on waveforms. When zooming vertically , the oscilloscope expands or contracts the selected waveform only . Also, the oscilloscope only positions the selected waveform when in Zoom. When zooming horiz[...]

Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–51 T o use Zoom, select a waveform, turn Zoom on, and magnify that waveform using the vertical and horizontal scale knobs: 1. Press any of waveform selection buttons CH 1 through CH 4 on the right side of the display . Or press MORE and select a math or reference[...]

Acquiring and Displaying W aveforms 3–52 TDS 500C, TDS 600B, & TDS 700C User Manual Only the selected waveform (the top one) changes size. Figure 3–25: Zoom Mode with Horizontal Lock Set to None T o change the interpolation method used, press DISPLA Y ➞ Settings (main) ➞ Display (pop-up) ➞ Filter (main) ➞ Sin(x)/x Interpolation or L[...]

Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–53 2. T o scale or position the unmagnified waveform, press Selected Grati- cule (main) ➞ Lower (side). Use the vertical and horizontal knobs to scale and position the unmagnified waveform in the box. Note that as you scale or move the unmagnified waveform rela[...]

Acquiring and Displaying W aveforms 3–54 TDS 500C, TDS 600B, & TDS 700C User Manual T o select Dual Zoom, press ZOOM ➞ Mode (main) ➞ Dual Zoom (side) to toggle it to ON . (See Figure 3–27.) Dual zoom displays a second zoomed view of the selected unzoomed waveform. The second zoomed view is offset in time from the first zoomed view . Als[...]

Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–55 Selected Graticule Zoomed W aveform Edges Zoom Boxes Unzoomed W aveform Figure 3–27: Dual Zoom — Shown Dual Window (Preview) Mode Using InstaV u  Acquisition Mode The TDS 500C and 700C Oscilloscopes can use InstaV u acquisition mode to reduce the dead t[...]

Acquiring and Displaying W aveforms 3–56 TDS 500C, TDS 600B, & TDS 700C User Manual InstaV u mode increases the waveform capture rate to up to 400,000 waveforms per second (maximum waveform rate depends on oscilloscope model), updating the waveform array many times between displays. This very fast frame rate greatly increases the probability [...]

Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–57 Next Acquired W aveform Record Next Acquired W aveform Record 1st Set of Acquired W aveform Records Next Set of Acquired W aveform Records Next Set of Acquired W aveform Records Display Updated Display Updated Display V ariable Persistence Display Updated V ar[...]

Acquiring and Displaying W aveforms 3–58 TDS 500C, TDS 600B, & TDS 700C User Manual T o change the InstaV u display style, do the following steps: 1. Press DISPLA Y ➞ Mode (main) ➞ InstaV u (pop-up) ➞ Style (main). 2. Select between V ectors and Dots in the side menu. (Dots display is the factory default setting.) 3. Select between Infi[...]

Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–59 If you select any of these modes before or while InstaV u is on, they will remain selected in their respective menus, but the oscilloscope will ignore them. It will put the modes into effect when you turn InstaV u off. If the oscilloscope setup is not as you e[...]

Acquiring and Displaying W aveforms 3–60 TDS 500C, TDS 600B, & TDS 700C User Manual If you are using the FastFrame mode, you can jump to the desired frame. T o use FastFrame, do the following steps: 1. Press HORIZONT AL MENU ➞ FastFrame Setup (main) ➞ FastFrame (side) to toggle on or off the use of FastFrame (see Figure 3–31).  ?[...]

Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–61 If you shift the waveform right or left with the front-panel HORIZONT AL POSITION knob, the window next to the side-menu Frame button will indicate the frame number of the waveform at the center of the screen. FastFrame Operating Characteristics. Consider the [...]

Acquiring and Displaying W aveforms 3–62 TDS 500C, TDS 600B, & TDS 700C User Manual[...]

TDS 500C, TDS 600B, & TDS 700C User Manual 3–63 T riggering on W aveforms T o use the TDS Oscilloscope to measure or monitor waveforms, you need to know how to trigger a stable display of those waveforms. T oward that end, this section first covers the following topics:  T rigger Concepts which details some basic principles of triggering a[...]

T riggering on W aveforms 3–64 TDS 500C, TDS 600B, & TDS 700C User Manual T riggered W aveform Untriggered Waveforms Figure 3–32: T riggered V ersus Untriggered Displays The trigger event establishes the time-zero point in the waveform record. All points in the record are located in time with respect to that point. The oscillo- scope contin[...]

T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–65 The digitizing oscilloscope provides three standard triggers for the main trigger system: edge, pulse, and logic. Option 05 provides a video trigger . The standard triggers are described individually starting on page 3–72. A brief definition of each type follows: Edge[...]

T riggering on W aveforms 3–66 TDS 500C, TDS 600B, & TDS 700C User Manual Automatic trigger mode (auto mode) enables the oscilloscope to acquire a waveform even if a trigger does not occur . Auto mode uses a timer that starts after a trigger event occurs. If another trigger event is not detected before the timer times out, the oscilloscope fo[...]

T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–67 Holdoff Holdoff Indicates T rigger Points T rigger Level Holdoff Acquisition Interval Acquisition Interval T riggers are not recognized during holdoff time. Figure 3–33: T rigger Holdoff Time Ensures V alid T riggering T rigger coupling determines what part of the sig[...]

T riggering on W aveforms 3–68 TDS 500C, TDS 600B, & TDS 700C User Manual The slope control determines whether the oscilloscope finds the trigger point on the rising or the falling edge of a signal. (See Figure 3–34.) Y ou set trigger slope by first selecting Slope in the Main T rigger menu and then selecting between the rising or falling s[...]

T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–69 T rigger Status Lights Figure 3–35: TRIGGER Controls and Status Lights T o quickly obtain an edge trigger or a glitch or width pulse trigger , press SET LEVEL TO 50% . The oscilloscope sets the trigger level to the halfway point between the peaks of the trigger signal[...]

T riggering on W aveforms 3–70 TDS 500C, TDS 600B, & TDS 700C User Manual T o trigger on the next valid trigger event and then stop, press SHIFT FORCE TRIG . Now press the RUN/ST OP button each time you want to initiate the single sequence of acquisitions. T o leave Single T rig mode, press SHIFT ACQUIRE MENU ➞ Stop Af- ter (main) ➞ RUN/S[...]

T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–71 T rigger Readout. T o quickly determine the settings of some key trigger parame- ters, check the T rigger readout at the bottom of the display . (See Figure 3–36.) The readouts differ for edge, logic, and pulse triggers. Main Time Base Main Time Base T ime/Div Main T [...]

T riggering on W aveforms 3–72 TDS 500C, TDS 600B, & TDS 700C User Manual T rigger Position Relative to the Display and Waveform Record T rigger Point Indicator Indicating the T rigger Position on the W aveform Record T rigger Bar Indicating the Trigger Level on the Waveform Record Figure 3–37: Record View , T rigger Position, and T rigger [...]

T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–73 Main Time Base Main Time Base T ime/Div Main T rigger Source = Ch 1 Main T rigger Slope = Rising Edge Main T rigger Level Figure 3–38: Edge T rigger Readouts Use the edge trigger menu to select edge triggering and to perform the proce- dures for source, coupling, slop[...]

T riggering on W aveforms 3–74 TDS 500C, TDS 600B, & TDS 700C User Manual T o select which source you want for the trigger: Press TRIGGER MENU ➞ T ype (main) ➞ Edge (pop-up) ➞ Source (main) ➞ Ch1 , Ch2 , Ch3 , Ch4 , AC Line , or DC Aux (side). T o select the coupling you want, press TRIGGER MENU ➞ T ype (main) ➞ Edge (pop-up) ➞ [...]

T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–75 Y ou can change the holdoff time and select the trigger mode using this menu item. See T rigger Modes and T rigger Holdoff beginning on page 3–65 for a description of these features. T o set mode and holdoff, do the following steps: 1. Press the TRIGGER MENU ➞ Mode [...]

T riggering on W aveforms 3–76 TDS 500C, TDS 600B, & TDS 700C User Manual 2. Select the rising or falling edge from the side menu. Press the TRIGGER MENU ➞ T ype (main) ➞ Edge (pop-up) ➞ Level (main) ➞ Level , Set to TTL , Set to ECL , or Set to 50% (side). Level lets you enter the trigger level using the general purpose knob or the k[...]

T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–77  The Boolean logic function — select from AND, NAND, OR, and NOR  The condition for triggering — whether the trigger occurs when the Boolean function becomes TRUE (logic high) or F ALSE (logic low), and whether the TRUE condition is time qualified A state trig[...]

T riggering on W aveforms 3–78 TDS 500C, TDS 600B, & TDS 700C User Manual For state triggering, the oscilloscope waits until the end of trigger holdoff and then waits until the edge of channel 4 transitions in the specified direction. At that point, the oscilloscope samples the inputs from the other channels and triggers if the conditions def[...]

T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–79 S etup/hold triggering uses the setup/hold violation zone to detect when data is unstable too near the time it is clocked. Each time trigger holdoff ends, the oscilloscope monitors the data and clock sources. When a clock edge occurs, the oscilloscope checks the data st[...]

T riggering on W aveforms 3–80 TDS 500C, TDS 600B, & TDS 700C User Manual Clock Signal Clock Level T S = Setup Time T H = Hold Time Setup/Hold Violation Zone = T S + T H T S + T H must be  +2 ns Clock Signal Clock Level Clock Signal Clock Level Negative T S; Positive T H Positive T S ; Negative T H +T H +T H –T S –T H +T S +T S Setup/H[...]

T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–81 T rigger Class = State Ch 1, 2, 3 Inputs = High, Don’t Care, Don’t Care Ch 4 Input = Rising Edge Logic = OR Figure 3–41: Logic T rigger Readouts — State Class Selected NOTE . When the trigger type Logic is selected, the trigger levels must be set for each channe[...]

T riggering on W aveforms 3–82 TDS 500C, TDS 600B, & TDS 700C User Manual Figure 3–42: Logic T rigger Menu T o Define Pattern Inputs. T o set the logic state for each of the input channels ( Ch1 , Ch2 , ...): 1. Press TRIGGER MENU ➞ T ype (main) ➞ Logic (pop-up) ➞ Class (main) ➞ Pattern (pop-up) ➞ Define Inputs (main) ➞ Ch1 , Ch[...]

T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–83 T o Define the Logic. T o choose the logic function you want applied to the input channels (see page 3–77 for definitions of the logic functions for both pattern and state triggers): Press TRIGGER MENU ➞ T ype (main) ➞ Logic (pop-up) ➞ Class (main) ➞ Pattern ([...]

T riggering on W aveforms 3–84 TDS 500C, TDS 600B, & TDS 700C User Manual Note the position of the trigger indicator in Figure 3–43. T riggering occurs at the point that the oscilloscope determines that the logic function you specify is TRUE within the time you specify . The oscilloscope determines the trigger point in the following manner:[...]

T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–85 When you select the logic class State, the oscilloscope uses channel 4 as a clock and triggers on a logic circuit made from the rest of the channels (pages 3–76 through 3–78 describe how state triggers work). T o use state triggering, do the following procedures. Se[...]

T riggering on W aveforms 3–86 TDS 500C, TDS 600B, & TDS 700C User Manual T o Set Mode and Holdoff. Mode and holdoff can be set for all standard trigger types and classes. T o set mode and holdoff, refer to T o Set Mode & Holdoff on page 3–75. T o learn more about trigger mode and holdoff, see the descriptions T rigger Modes and T rigge[...]

T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–87 Set the Data and Clock Levels. T o set the transition levels that the clock and data must cross to be recognized by the oscilloscope: 1. Press TRIGGER MENU ➞ T ype (main) ➞ Logic (pop-up) ➞ Class (main) ➞ Setup/Hold (pop-up) ➞ Levels (main) ➞ Clock Level or [...]

T riggering on W aveforms 3–88 TDS 500C, TDS 600B, & TDS 700C User Manual Data (Ch1) transition occurs within  10 ns after the clock violating hold time limit. The oscilloscope recognizes the violation and triggers at the clock edge. Cursors measure the setup/hold violation zone which equals setup time + hold time (30 ns). Figure 3–44: T[...]

T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–89 T riggering on Pulses The TDS Oscilloscope can trigger on glitch or runt pulses, or it can trigger based on the width, slew rate, or timeout period of a pulse. These capabilities make the oscilloscope suitable for such tasks as unattended monitoring for , and capturing [...]

T riggering on W aveforms 3–90 TDS 500C, TDS 600B, & TDS 700C User Manual T rigger Class = Runt Figure 3–45: Pulse T rigger Readouts T able 3–7: Pulse trigger definitions Name Definition Glitch positive T riggering occurs if the oscilloscope detects positive spike widths less than the specified glitch time. Glitch negative T riggering occ[...]

T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–91 T able 3–7: Pulse trigger definitions (cont.) Name Definition Slew positive T riggering occurs if the oscilloscope detects a positive pulse edge that after first crossing the lower threshold then crosses the upper threshold. The pulse must travel between the two level[...]

T riggering on W aveforms 3–92 TDS 500C, TDS 600B, & TDS 700C User Manual Figure 3–46: Main T rigger Menu — Glitch Class Select the Source. T o specify which channel becomes the pulse trigger source: Press TRIGGER MENU ➞ T ype (main) ➞ Pulse (pop-up) ➞ Source (main) ➞ Ch1 , Ch2 , Ch3 , or Ch4 (side). The source selected becomes th[...]

T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–93 Set to Accept or Reject Glitch. T o specify whether to trigger on glitches or ignore glitches, press TRIGGER MENU ➞ T ype (main) ➞ Pulse (pop-up) ➞ Class (main) ➞ Glitch (pop-up) ➞ Glitch (main) ➞ Accept Glitch or Reject Glitch (side). If you choose Accept G[...]

T riggering on W aveforms 3–94 TDS 500C, TDS 600B, & TDS 700C User Manual Select the Source. T o specify which channel becomes the pulse trigger source: Press TRIGGER MENU ➞ T ype (main) ➞ Pulse (pop-up) ➞ Source (main) ➞ Ch1 , Ch2 , Ch3 , or Ch4 (side). The source selected becomes the trigger source for all four trigger classes. Sele[...]

T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–95 Selected trigger bar at upper threshold. Runt Pulse Crosses First Threshold Only , Recrosses First Threshold Level, and T riggers Acquisition Unselected trigger bar at lower threshold. Figure 3–47: Main T rigger Menu — Runt Class Note the position of the trigger ind[...]

T riggering on W aveforms 3–96 TDS 500C, TDS 600B, & TDS 700C User Manual Set the Mode and Holdoff. Mode and holdoff can be set for all standard trigger types and classes. T o set mode and holdoff, refer to Set Mode & Holdoff on page 3–75. T o learn more about trigger mode and holdoff, see T rigger Modes and T rigger Holdoff on page 3?[...]

T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–97 3. T o set the range of pulse widths in units of time, press Upper Limit (side) and Lower Limit (side). Enter the values with the general purpose knob or keypad. The Upper Limit is the maximum valid pulse width the trigger source will look for . The Lower Limit is the m[...]

T riggering on W aveforms 3–98 TDS 500C, TDS 600B, & TDS 700C User Manual Negative monitors the slew rate of the negative-going edges of pulses. The edge must first cross the upper threshold and then cross the lower threshold. Either monitors positive- and negative-going edges of pulses. The edge may first cross either threshold and then cros[...]

T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–99 Set to T rig When. The oscilloscope compares the pulse edge of the trigger source against the slew rate setting read out in the T rigger When menu. T o select whether to trigger on edges with slew rates faster than or slower than that indicated in readout, do the follow[...]

T riggering on W aveforms 3–100 TDS 500C, TDS 600B, & TDS 700C User Manual T rigger Bar at Upper Threshold T rigger Bar at Lower Threshold Cursors Measure Slew Rate Components of Pulse Edge—dv and dt T rigger Point at Second Crossing Figure 3–48: Main T rigger Menu — Slew Rate Class  The T rigger When side menu displays the readout S[...]

T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–101  The T rigger When side menu indicates the oscilloscope will trigger on pulses with slew rates slower than the slew rate setting. Since the pulse edge slews at 20 mV/ns, which is faster than the slew rate setting of 16 mV/ns, the oscilloscope triggers.  The trigg[...]

T riggering on W aveforms 3–102 TDS 500C, TDS 600B, & TDS 700C User Manual Either causes a trigger to occur if the signal stays lower or stays higher than the trigger level for longer than the timeout value. Time . T o set the timeout time: 1. Press TRIGGER MENU ➞ T ype (main) ➞ Pulse (pop-up) ➞ Class (main) ➞ T imeout (pop-up) ➞ Ti[...]

T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–103 Communications T riggering The TDS Oscilloscope can trigger on communication signals (option 2C only). T able 3–8 lists the available standards, codes, and bit rates. This section describes how to use Comm triggering — how to select the Source, Code, bit rate, tele[...]

T riggering on W aveforms 3–104 TDS 500C, TDS 600B, & TDS 700C User Manual T able 3–8: Comm triggers (cont.) Standard Name Bit Rate Code 1 STS-1 AMI 51.84 Mb/s STS-3 CMI 155.52 Mb/s FC133 NRZ 132.8 Mb/s FC266 NRZ 265.6 Mb/s FC531 NRZ 531.2 Mb/s FC1063 NRZ 1.0625 Mb/s D2 NRZ 143.18 Mb/s D1 NRZ 270 Mb/s FDDI NRZ 125 Mb/s 1 AMI = Alternate Mar[...]

T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–105 Figure 3–49: Main T rigger Menu — Comm T ype T o select the standard and bit rate of the communication signal that triggering will occur on: 1. Press TRIGGER MENU ➞ T ype (main) ➞ Comm (pop-up) ➞ Stan- dard (main). 2. Select an standard from the side menu. On[...]

T riggering on W aveforms 3–106 TDS 500C, TDS 600B, & TDS 700C User Manual T able 3–9: Communications pulse forms AMI CMI NRZ Isolated +1 Plus One Eye Diagram Isolated –1 Minus One Rise Eye Diagram Zero Fall Eye Diagram Pattern 0-7 Press the TRIGGER MENU ➞ T ype (main) ➞ Comm (pop-up) ➞ Level or Threshold (main) ➞ High, Low , Leve[...]

T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–107 There are two different ways to delay the acquisition of waveforms: delayed runs after main and delayed triggerable . Only delayed triggerable uses the delayed trigger system. Delayed runs after main looks for a main trigger , then waits a user-defined time, and then s[...]

T riggering on W aveforms 3–108 TDS 500C, TDS 600B, & TDS 700C User Manual NOTE . Due to har dwar e limitations, the delayed time base cannot be made triggerable when the main trigger type is Logic, any class, or when the main trigger type is Pulse with Runt or Slew Rate classes selected. For these settings, the oscilloscope will for ce the d[...]

T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–109 Time Delay (From Delay T rig Menu) Start Posttrigger Acquisition (T rigger on nth Delayed Trigger Event) Time Delay (From Horiz Menu) Time Delay (From Delay T rig Menu) W aiting for nth Event (Where n=5) Main T rigger Point Start Posttrigger Acquisition Main T rigger S[...]

T riggering on W aveforms 3–1 10 TDS 500C, TDS 600B, & TDS 700C User Manual 4. If T ype is set to Pulse , press Class (main) and change it to either Glitch or Width as fits your application. Runt and Slew Rate pulse classes are incompatible with Delayed T riggerable. 5. Press HORIZONT AL MENU ➞ Time Base (main) ➞ Delayed Only (side) ➞ D[...]

T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–1 1 1 Figure 3–53: Delayed T rigger Menu 8. Press Source (main) ➞ Ch1, Ch2, Ch3 , Ch4 , or DC Aux (side). NOTE . Selecting DC Aux as sour ce in BOTH the main and delayed triggering menus for ces main and delayed trigger levels to adjust in tandem. As long as their sour[...]

T riggering on W aveforms 3–1 12 TDS 500C, TDS 600B, & TDS 700C User Manual 11 . Press Level (main) ➞ Level , Set to TTL , Set to ECL , or Set to 50% (side). Level lets you enter the delayed trigger level using the general purpose knob or the keypad. Set to TTL fixes the trigger level at +1.4 V . Set to ECL fixes the trigger level at –1.3[...]

TDS 500C, TDS 600B, & TDS 700C User Manual 3–1 13 Measuring W aveforms T o make the best use of the TDS Oscilloscope when taking measurements, you need to know how to use the five types, or classes, of measurements it can take. This section describes how to take the following classes of measurements (Fig- ure 3–54 shows four measurement cla[...]

Measuring W aveforms 3–1 14 TDS 500C, TDS 600B, & TDS 700C User Manual T aking Automated Measurements The TDS Oscilloscope provides the feature Measur e for automatically taking and displaying waveform measurements. This section describes how to set up the oscilloscope to let it do the work of taking measurements for you. Because automatic me[...]

Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–1 15 T able 3–10: Measurement definitions (cont.) Name Definition Cycle RMS V oltage measurement. The true Root Mean Square voltage over the first cycle in the waveform or the first cycle in the gated region. Delay Timing measurement. The time between the MidRef crossings of [...]

Measuring W aveforms 3–1 16 TDS 500C, TDS 600B, & TDS 700C User Manual T able 3–10: Measurement definitions (cont.) Name Definition Phase Timing measurement. The amount one waveform leads or lags another in time. Expressed in degrees, where 360  comprise one waveform cycle. Period Timing measurement. T ime it takes for the first complete[...]

Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–1 17 Measurement Readout Area Figure 3–55: Measurement Readouts with Statistics T o use the automatic measurements you first need to obtain a stable display of the waveform to be measured. (Pressing AUTOSET may help.) Once you have a stable display , perform the following ste[...]

Measuring W aveforms 3–1 18 TDS 500C, TDS 600B, & TDS 700C User Manual Figure 3–56: Measure Menu  Be careful when taking automatic measurements using Extended Acquisition mode and high levels of waveform compression. The compression may remove signal attributes required by some measurements. The Remove Measrmnt selection provides explici[...]

Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–1 19 When gating is activated, vertical cursors are displayed. Use these cursors to define the section of the waveform you want the oscilloscope to measure. (This section is called the gated r egion .) Do the following steps to gate a m ea su r em e nt : 1. TDS 600B: Press MEAS[...]

Measuring W aveforms 3–120 TDS 500C, TDS 600B, & TDS 700C User Manual NOTE . Cursors ar e displayed r elative to the selected waveform. If you ar e making a measur ement using two waveforms, this behavior can be a source of confusion. If you turn off horizontal locking and adjust the horizontal position of one waveform independent of the othe[...]

Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–121 Then choose whether the References are set in % relative to High (100%) and Low (0%) or set explicitly in the units of the selected waveform (typically volts). See Figure 3–58 . Use the general purpose knob or keypad to enter the values. % is the default selection. It is [...]

Measuring W aveforms 3–122 TDS 500C, TDS 600B, & TDS 700C User Manual The delay measurement lets you measure from an edge on the selected waveform to an edge on another waveform. T o take a delay measurement, do the following steps: 1. TDS 600B: Press MEASURE ➞ Select Measrmnt (main) ➞ Delay (side) ➞ Delay T o (main) ➞ Measur e Delay [...]

Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–123 4. TDS 600B: Press MEASURE ➞ Select Measrmnt (main) ➞ Delay (side) ➞ Edges (main). 5. TDS 500C and TDS 700C: Press MEASURE ➞ Measur e (pop-up) ➞ Select Measrmnt (main) ➞ Delay (side) ➞ Edges (main). A side menu of delay edges and directions will appear . Choos[...]

Measuring W aveforms 3–124 TDS 500C, TDS 600B, & TDS 700C User Manual T o use Snapshot, obtain a stable display of the waveform to be measured (pressing AUTOSET may help). Then do the following steps: 1. TDS 600B: Press MEASURE ➞ SNAPSHOT (main). 2. TDS 500C and TDS 700C: Press MEASURE ➞ Measur e (pop-up) ➞ SNAPSHOT (main). 3. Press eit[...]

Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–125 Consider the following rules when taking a snapshot:  Be sure to display the waveform properly before taking a snapshot. Snapshot does not warn you if a waveform is improperly scaled (clipped, low signal amplitude, low resolution, etc.).  T o vary the source for takin[...]

Measuring W aveforms 3–126 TDS 500C, TDS 600B, & TDS 700C User Manual T o display measurement statistics, obtain a stable display of the waveform to be measured. Then do the following steps: 1. Press MEASURE ➞ Measur e (pop-up) ➞ Statistics (main) ➞ Statistics Min/Max or Statistics Mean/StdDev (side). Statistics Min/Max — Displays the[...]

Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–127 There are three cursor types: horizontal bar , vertical bar , and pair ed (see Figure 3–61). Horizontal Bar Cursors V ertical Bar Cursors Paired Cursors Figure 3–61: Cursor T ypes Horizontal bar cursors measure vertical parameters (typically volts). V ertical bar cursor[...]

Measuring W aveforms 3–128 TDS 500C, TDS 600B, & TDS 700C User Manual In tracking mode, you normally move both cursors in tandem using the general purpose knob. The two cursors remain a fixed distance (time or voltage) from each other . Press SELECT to temporarily suspend cursor tracking. Y ou can then use the general purpose knob to adjust t[...]

Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–129 Paired. The value after one D shows the voltage dif ference between the two X s; the other D shows the time (or frequency) difference between the two long vertical bars. The value after @ shows the voltage at the X of the selected cursor relative to ground. (See Figure 3–[...]

Measuring W aveforms 3–130 TDS 500C, TDS 600B, & TDS 700C User Manual Non-selected Cursor (Dashed V ertical Bar) Cursor Readout (Paired) Selected Cursor (Solid V ertical Bar) Position of V ertical Bar Cursors (Useful for Locating Cursors Outside the Display) Figure 3–64: Paired Cursor Menu and Readouts T o select the cursor mode and adjust [...]

Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–131  T o adjust both cursors in tracking mode, use the general purpose knob to move both cursors.  T o adjust the distance between cursors in tracking mode, press SELECT to temporarily suspend cursor tracking. Then use the general purpose knob to adjust the distance of th[...]

Measuring W aveforms 3–132 TDS 500C, TDS 600B, & TDS 700C User Manual T o find information on cursor units with video waveforms, see the TDS Family Option 05 V ideo T rigger Interface, if your oscilloscope is equipped with the video trigger option. T aking Graticule Measurements The TDS Oscilloscope provides a graticule for measuring the diff[...]

Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–133 T o measure the time of a waveform, repeat the process just described, but count the horizontal divisions and multiply by the horizontal scale factor . For example, if you count five major horizontal graticule divisions for one waveform cycle at a horizontal scale factor of[...]

Measuring W aveforms 3–134 TDS 500C, TDS 600B, & TDS 700C User Manual  V ertical displays a vertical histogram that shows how your vertical units vary in the histogram box. A vertical histogram is displayed starting at the left edge of the graticule. The size of the max bin is controlled by the Histogram Size side menu.  Horizontal disp[...]

Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–135 The TDS Oscilloscope provides you with 10 histogram measurements. T able 3–1 1 lists brief definitions of the measurements. T able 3–1 1: Measurement definitions Name Definition Mean The average of all acquired points within (or on) the histogram box. Median Half of all[...]

Measuring W aveforms 3–136 TDS 500C, TDS 600B, & TDS 700C User Manual 2. Press MEASURE ➞ Histogram (pop-up) ➞ Histogram Measrmnt (main). 3. Select a measurement from the side menu (see T able 3–1 1 on page 3–135). The Remove Measrmnt selection provides the same functions as in the Measure menu. See Remove Measur ements on page 3–1 1[...]

Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–137 Figure 3–66: Mask menu NOTE . If you select Manual, some contr ols ar e automatically adjusted; if you select Auto, a complete Autoset is performed. T o control whether an autoset is performed when a standard mask is selected, press MEASURE ➞ Measur e (main) ➞ Masks ([...]

Measuring W aveforms 3–138 TDS 500C, TDS 600B, & TDS 700C User Manual T o enable the optical reference receiver (option 3C and 4C) required by some optical standards that require a Bessel–Thompson response, press MEA- SURE ➞ Measure (main) ➞ Masks (pop-up) ➞ Mask Options (main). Then toggle Filter (side) to Enable . T o determine the [...]

Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–139 3. Y ou create or edit a mask by moving a cross-hair cursor on the display and adding or deleting points as required. T o move the cursor , turn the general purpose knob. T o change the cursor direction, press SELECT . 4. T o add a point to the mask, move the cursor to the [...]

Measuring W aveforms 3–140 TDS 500C, TDS 600B, & TDS 700C User Manual These points form the bottom of the mask These points form the top of the mask Left-most point Right-most point T op/bottom dividing line (not displayed) Figure 3–67: Creating a User Mask  T o create a mask with a concave side, create several masks to cover the same ar[...]

Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–141 T able 3–12: Standard masks SONET SDH ITU-T T1.102 Fibre channel Video Miscellaneous None None None None None None OC1/STM0 51.84 Mb/s DS–0 Sgl Single 64.4 kb/s DS1 1.544 Mb/s FC133 Optical 132.8 Mb/s 4fsc NTSC “D2” 143.18 Mb/s FDDI Halt 125 Mb/s OC3/STM1 155.52 Mb/[...]

Measuring W aveforms 3–142 TDS 500C, TDS 600B, & TDS 700C User Manual The TDS Oscilloscope lets you compensate the internal signal path used to acquire the waveforms you measure. SPC optimizes the oscilloscope capability to make accurate measurements based on the ambient temperature. Run an SPC anytime you wish to ensure that the measurements[...]

Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–143 Figure 3–68: Performing a Signal Path Compensation The TDS Oscilloscopes allow you to adjust a relative time delay for each channel. This feature lets you align the signals to compensate for the fact that signals may come in from cables of differing lengths. The oscillosc[...]

Measuring W aveforms 3–144 TDS 500C, TDS 600B, & TDS 700C User Manual Run a Probe Cal anytime you wish to ensure that the measurements you make are made with the most accuracy possible. Y ou should also run a Probe Cal if you have changed to a different probe since the last Probe Cal was performed. Some Probes Cannot Be Compensated. Some type[...]

Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–145 2. Power on the digitizing oscilloscope and allow a 20 minute warm-up before doing this procedure. 3. Press SHIFT UTILITY ➞ System (main) ➞ Cal (pop-up). 4. Look at the status label under Signal Path in the main menu. If the status does not read Pass , perform a signal [...]

Measuring W aveforms 3–146 TDS 500C, TDS 600B, & TDS 700C User Manual Figure 3–69: Probe Cal Menu and Gain Compensation Display  If gain compensation did not complete successfully , you may get a “Probe is not connected” message (examine the probe connections to the digitizing oscilloscope, be sure the probe tip is properly installed[...]

Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–147 15. Note the compensation error amount. Skip to step 20. 16. Disconnect the probe from any signal you may have connected it to. Leave the probe installed on its channel. 17. Press OK Compensate Offset (side). 18. W ait for offset compensation to complete (one to three minut[...]

Measuring W aveforms 3–148 TDS 500C, TDS 600B, & TDS 700C User Manual If you execute a successful Probe Cal on an input channel, the oscilloscope stores the compensation data it derived in nonvolatile memory . Therefore, this data is available when you turn the oscilloscope off and back on and when you change probes. When you install a probe [...]

Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–149 Figure 3–70: Re-use Probe Calibration Data Menu NOTE . If the Re-use Probe Calibration data menu is displayed, do not select OK Use Existing Data if the pr obe curr ently installed is not of the same impedance stor ed for the Pr obe Cal. For example, if the last Pr obe Ca[...]

Measuring W aveforms 3–150 TDS 500C, TDS 600B, & TDS 700C User Manual T able 3–13: Probe cal status be al 1 Ue a i T ype probe connected 2 Pro be C al ’d? 1 U s e r a ct i on Simple interface 3 TEKPROBE interface 4 No Doesn’t Matter Initialized Initialized Ye s Power off Initialized (probe data is retained) Initialized (probe data is re[...]

TDS 500C, TDS 600B, & TDS 700C User Manual 3–151 Saving W aveforms and Setups The TDS Oscilloscope can save and recall the waveforms you measure and the setups you use to measure them. It can also output or save a copy of its display screen. This section describes how to use the following features to save, recall, and document your measuremen[...]

Saving W aveforms and Setups 3–152 TDS 500C, TDS 600B, & TDS 700C User Manual T o save the current setup of the oscilloscope: 1. Press SA VE/RECALL SETUP ➞ Save Curr ent Setup (main). STOP . Befor e doing step 2 that follows, note that if you choose a setup location labeled user , you will overwrite the user setup pr eviously stor ed ther e[...]

Saving W aveforms and Setups TDS 500C, TDS 600B, & TDS 700C User Manual 3–153 NOTE . Upon power on, the oscilloscope cr eates the “wild card” file, marked in the file utilities menu by the name TEK?????.SET and by a wild car d icon as shown on the left of this page, f or s t or in g s et u ps . Se l ec t in g th is f il e in s te p 3 s to[...]

Saving W aveforms and Setups 3–154 TDS 500C, TDS 600B, & TDS 700C User Manual Executing T ek Secure accomplishes the following tasks:  Replaces all waveforms in reference memories with zero sample values.  Replaces the current front panel setup and all setups stored in setup memory with the factory setup.  Calculates the checksums of[...]

Saving W aveforms and Setups TDS 500C, TDS 600B, & TDS 700C User Manual 3–155 T o save a waveform, do the following steps: 1. Select the channel that has the waveform you want to save. STOP . Befor e doing step 2 that follows, note that if you choose a r efer ence memory location labeled active (see Figur e 3–72), you will overwrite the wav[...]

Saving W aveforms and Setups 3–156 TDS 500C, TDS 600B, & TDS 700C User Manual NOTE . Using this pr ocedur e to save an extended acquisition only saves the waveform. In this case, if the trigger position is shown at 0% or 100%, the actual position may be outside the saved waveform. 4. T o store a waveform to disk, press T o File (side). Then u[...]

Saving W aveforms and Setups TDS 500C, TDS 600B, & TDS 700C User Manual 3–157 T o select the format that the oscilloscope uses to save waveforms to a disk: TDS 600B: Press save/recall W A VEFORM ➞ Save Format (main) ➞ Internal , MathCad , or Spreadsheet (side). TDS 500C and TDS700C: Press save/recall W A VEFORM ➞ Normal or Extended (pop[...]

Saving W aveforms and Setups 3–158 TDS 500C, TDS 600B, & TDS 700C User Manual T o remove all stored reference waveforms and setups, use the feature called T ek Secure. See T o Delete All Setups and W aveforms on page 3–153. T o display a waveform in internal reference memory: Press MORE ➞ Ref1 , Ref2 , Ref3 , or Ref4 (main). (See Figure 3[...]

Saving W aveforms and Setups TDS 500C, TDS 600B, & TDS 700C User Manual 3–159 TDS 500C or TDS 700C: Press SA VE/RECALL W A VEFORM ➞ Normal (pop-up) ➞ Recall Wfm T o Ref (main) ➞ Recall From File (side). Then use the general purpose knob to select the exact file from the resulting scrollbar list. Only files with .WFM extensions are displ[...]

Saving W aveforms and Setups 3–160 TDS 500C, TDS 600B, & TDS 700C User Manual Consider the following operating characteristics when using autosave.  Autosave saves all “live” waveforms; that is, waveforms displayed in CH 1 – CH 4. T o be saved, the live waveforms must be displayed on screen.  Autosave saves each live waveform into[...]

Saving W aveforms and Setups TDS 500C, TDS 600B, & TDS 700C User Manual 3–161 3. Press File Utilities in the main menu to bring up the File Utilities side menu. (See Figure 3–74.) NOTE . The amount of fr ee space on the active disk is shown in the upper right corner of the display . The oscilloscope shows the amount in Kbytes (or in Mbytes [...]

Saving W aveforms and Setups 3–162 TDS 500C, TDS 600B, & TDS 700C User Manual T o delete a file or directory , turn the general purpose knob until it scrolls the cursor over the line marked with both the name of the file or directory to delete and the file icon or directory icon as shown to the left of this page. Then, press the side menu Del[...]

Saving W aveforms and Setups TDS 500C, TDS 600B, & TDS 700C User Manual 3–163 T o copy a file or directory , turn the general purpose knob until it scrolls the cursor over the name of the file to copy . Then, press the side menu Copy button. The file menu will reappear with the names of directories to copy to. Select a disk and directory and [...]

Saving W aveforms and Setups 3–164 TDS 500C, TDS 600B, & TDS 700C User Manual T o turn on or off the file overwrite lock, toggle the side menu Overwrite Lock button. When overwrite lock is on, the oscilloscope will not permit you to write over an existing file of the same name. An important reason to allow overwriting is to let you write file[...]

Saving W aveforms and Setups TDS 500C, TDS 600B, & TDS 700C User Manual 3–165 The oscilloscope prints hardcopies of its display in many formats, which allows you to choose from a wide variety of hardcopy devices. It also makes it easier for you to place oscilloscope screen copies into a desktop publishing system. The oscilloscope supports the[...]

Saving W aveforms and Setups 3–166 TDS 500C, TDS 600B, & TDS 700C User Manual Some formats, particularly Interleaf, EPS, TIFF , PCX, BMP , and HPGL, are compatible with various desktop publishing packages. Such compatibility means you can paste files created from the oscilloscope directly into a document on any of those desktop publishing sys[...]

Saving W aveforms and Setups TDS 500C, TDS 600B, & TDS 700C User Manual 3–167 Set Hardcopy Parameters. T o specify the hardcopy format, layout, and type of port using the hardcopy menu, do the following steps: 1. Press SHIFT ➞ HARDCOPY MENU to bring up the Hardcopy menu. 2. Press Format (main) ➞ Thinkjet , Deskjet , DeskjetC , Laserjet , [...]

Saving W aveforms and Setups 3–168 TDS 500C, TDS 600B, & TDS 700C User Manual Date/Time Stamp the Hardcopy . Y ou can display the current date and time on screen so that they appear on the hardcopies you print. T o date and time stamp your hardcopy , do the following steps: 1. Press DISPLA Y ➞ Settings (main) ➞ Display (pop-up) ➞ Readou[...]

Saving W aveforms and Setups TDS 500C, TDS 600B, & TDS 700C User Manual 3–169 Set the Date and Time. Y ou might need to set the date and time of the oscillo- scope. T o set those parameters, do the following steps: 1. Press SHIFT ➞ UTILITY ➞ Config (pop-up) ➞ Set Date & Time (main) ➞ Y ear , Day Month , Hour , or Minute (side). 2.[...]

Saving W aveforms and Setups 3–170 TDS 500C, TDS 600B, & TDS 700C User Manual Some devices, such as the T ektronix HC100 Plotter , use the GPIB interface. Many printers, such as the T ektronix HC200, use Centronics interfaces. Many hardcopy devices, including the HC100 and HC200 with option 03, provide RS-232 support. (Check the documentation[...]

Saving W aveforms and Setups TDS 500C, TDS 600B, & TDS 700C User Manual 3–171 Although not guaranteed, usually about 2.5 hardcopies can be spooled before the oscilloscope must wait to send the rest of the third copy . T o send hardcopies to a disk, do the following steps: 1. Set up the oscilloscope communication and hardware parameters as out[...]

Saving W aveforms and Setups 3–172 TDS 500C, TDS 600B, & TDS 700C User Manual T o make your hardcopies, use the procedures that follow . Connect to a Hardcopy Device. T o connect a controller with two ports between the oscilloscope and the hardcopy device, connect from the oscilloscope GPIB connector (rear panel) to the controller GPIB port a[...]

Saving W aveforms and Setups TDS 500C, TDS 600B, & TDS 700C User Manual 3–173 NOTE . If you defined another name, use it instead of “DEV1”. Also, r emember that the device addr ess of the oscilloscope as set with the IBCONF .EXE pr ogram should match the addr ess set in the oscilloscope Utility menu (typically , use “1”). 4. T ype: IB[...]

Saving W aveforms and Setups 3–174 TDS 500C, TDS 600B, & TDS 700C User Manual Communicating with Remote Instruments The TDS Oscilloscope can connect into a system environment, so that you can control it remotely or exchange measurement or waveform data between it and a computer . This subsection explains how to prepare and setup the oscillosc[...]

Saving W aveforms and Setups TDS 500C, TDS 600B, & TDS 700C User Manual 3–175  T urn on at least two-thirds of the device loads present when you use your network.  Include only one cable path between devices on your network. (See Figure 3–81.) Do not create loop configurations. GPIB Device GPIB Device GPIB Device GPIB Device GPIB Devi[...]

Saving W aveforms and Setups 3–176 TDS 500C, TDS 600B, & TDS 700C User Manual Figure 3–82: Stacking GPIB Connectors T o set up remote communications, be sure your setup will meet GPIB protocol and interface requirements just described. Then do the following procedures. Connect the Oscilloscope to the GPIB. T o connect the oscilloscope, plug[...]

Saving W aveforms and Setups TDS 500C, TDS 600B, & TDS 700C User Manual 3–177 Configure the GPIB Port. Y ou must set two important GPIB parameters: mode and address. T o set those parameters: Press SHIFT ➞ UTILITY ➞ System (main) ➞ I/O (pop-up) ➞ Port (main) ➞ GPIB (pop-up) ➞ Configure (main) ➞ T alk/Listen Address , Hardcopy (T[...]

Saving W aveforms and Setups 3–178 TDS 500C, TDS 600B, & TDS 700C User Manual See Printing a Har dcopy , on page 3–164. See the TDS Pr ogrammer Manual disk. T o Find More Information[...]

TDS 500C, TDS 600B, & TDS 700C User Manual 3–179 Determining Status and Accessing Help The TDS Oscilloscope can display the status of its internal systems. It also provides an on-line help system. This section describes how to use the following two features:  Status which displays a snapshot of system, display , trigger , waveform, and I/O[...]

Determining Status and Accessing Help 3–180 TDS 500C, TDS 600B, & TDS 700C User Manual Firmware V ersion Figure 3–85: Status Menu — System[...]

Determining Status and Accessing Help TDS 500C, TDS 600B, & TDS 700C User Manual 3–181 Displaying the Banner T o display the banner (lists firmware version, options, copyright, and patents): Press SHIFT ST A TUS ➞ Banner (main). (See Figure 3–86.) Figure 3–86: Banner Display Displaying Help T o use the on-line help system: Press HELP to[...]

Determining Status and Accessing Help 3–182 TDS 500C, TDS 600B, & TDS 700C User Manual Figure 3–87: Initial Help Screen When you press that button, the instrument changes mode to support on-line help. Press HELP again to return to regular operating mode. Whenever the oscilloscope is in help mode, pressing any button (except HELP or SHIFT), [...]

TDS 500C, TDS 600B, & TDS 700C User Manual 3–183 Using Features for Advanced Applications The TDS Oscilloscope provides powerful features for testing and digitally proces - sing the waveforms you acquire. This section describes how to use the following features:  Limit T esting — for testing the waveforms you acquire against a template y[...]

Using Features for Advanced Applications 3–184 TDS 500C, TDS 600B, & TDS 700C User Manual Figure 3–88: Comparing a W aveform to a Limit T emplate T o do the tasks just listed, do the following procedures: T o use an incoming or stored waveform to create the limit test template, first you select a source and specify a template destination. T[...]

Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–185 Figure 3–89: Acquire Menu — Create Limit T est T emplate 4. Press ± V Limit (side). Enter the vertical (voltage) tolerance value using the general purpose knob or keypad. 5. Press ± H Limit (side). Enter the horizontal (time) tolerance value using [...]

Using Features for Advanced Applications 3–186 TDS 500C, TDS 600B, & TDS 700C User Manual T o view the template you have created, press the MORE button. Then press the button corresponding to the destination reference memory you have used. The waveform appears on the display . NOTE . T o view the waveform data as well as the template envelope[...]

Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–187 2. Ensure that the side button corresponding to the desired action reads ON .  If you want to send a hardcopy command when waveform data exceeds the limits set, toggle Hardcopy if Condition Met (side) to ON . Y ou can set the hardcopy system to send t[...]

Using Features for Advanced Applications 3–188 TDS 500C, TDS 600B, & TDS 700C User Manual Y ou can also compare more than one waveform against a single template, or more than one waveform with each one compared against its own template or a common template. When setting up for such comparisons, consider the following operating characteristics[...]

Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–189 T o perform waveform math, use the More menu (Figure 3–90). The More menu allows you to display , define, and manipulate three math waveforms; the following steps explain how to create a math waveform based on a single source waveform: 1. Press MORE ?[...]

Using Features for Advanced Applications 3–190 TDS 500C, TDS 600B, & TDS 700C User Manual T o create a math waveform that requires two waveform sources, do the following steps: 1. Press MORE ➞ Math1 , Math2 , or Math3 (main) ➞ Change Math waveform definition (side) ➞ Dual Wfm Math (main). 2. T o define the first source waveform, press S[...]

Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–191 Y ou can also select whether or not you wish to average a certain math waveform; to do so, perform the following steps: 1. Press MORE ➞ Math1 , Math2 , or Math3 (main) to select the math waveform to be averaged. 2. Press A verage (side) and enter a val[...]

Using Features for Advanced Applications 3–192 TDS 500C, TDS 600B, & TDS 700C User Manual The FFT computes and displays the frequency content of a waveform you acquire as an FFT math waveform. This fr equency domain waveform is based on the following equation: X ( k ) + 1 N N 2 * 1 S n + * N 2 x ( n ) e * j 2 p nk N for : k + 0t oN * 1 Where:[...]

Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–193 Normal W aveform of an Impulse Response FFT W aveform of the Magnitude Response FFT W aveform of the Phase Response Figure 3–92: System Response to an Impulse T o obtain an FFT of your waveform, do the following steps: 1. Connect the waveform to the de[...]

Using Features for Advanced Applications 3–194 TDS 500C, TDS 600B, & TDS 700C User Manual Figure 3–93: Define FFT W aveform Menu 7. Press Set FFT V ert Scale to (side) repeatedly to choose from the following vertical scale types: dBV RMS — Magnitude is displayed using log scale, expressed in dB relative to 1 V RMS where 0 dB =1 V RMS . Li[...]

Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–195 8. Press Set FFT Window to (side) repeatedly to choose from the following window types: Rectangular — Best type of window for resolving frequencies that are very close to the same value but worst for accurately measuring the amplitude of those frequenc[...]

Using Features for Advanced Applications 3–196 TDS 500C, TDS 600B, & TDS 700C User Manual Figure 3–94: FFT Math W aveform in Math1 Once you have displayed an FFT math waveform, use cursors to measure its frequency amplitude or phase angle. 1. Be sure MORE is selected in the channel selection buttons and that the FFT math waveform is selecte[...]

Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–197 Figure 3–95 shows the cursor measurement of a frequency magnitude on an FFT . The @: readout reads 0 dB because it is aligned with the 1 V RMS level. The D : readout reads 24.4 dB indicating the magnitude of the frequency it is measuring is –24.4 dB [...]

Using Features for Advanced Applications 3–198 TDS 500C, TDS 600B, & TDS 700C User Manual 9. Read the frequency difference between the cursors from the  : readout. Read the frequency of the selected cursor relative to the zero frequency point from the @: readout. The cursor units will always be in Hz, regardless of the setting in the T ime[...]

Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–199 W aveform Recor d — the complete waveform record acquired from an input channel and displayed from the same channel or a reference memory . The length of this time domain record is user-specified from the Horizontal menu. The waveform record is not a D[...]

Using Features for Advanced Applications 3–200 TDS 500C, TDS 600B, & TDS 700C User Manual FFT s T ransform Time Records to Frequency Records. The FFT time domain record just described is input for the FFT . Figure 3–97 shows the transformation of that time domain data record into an FFT frequency domain record. The resulting frequency domai[...]

Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–201 The following topics contain information to help you display your FFT properly . Adjust for a Non-Clipped Display . T o properly display your FFT waveform, scale the source waveform so it is not clipped.  Y ou should scale and position the source wave[...]

Using Features for Advanced Applications 3–202 TDS 500C, TDS 600B, & TDS 700C User Manual T o speed up oscilloscope response when using long record lengths, you can save your source waveform in a reference memory and perform an FFT on the saved waveform. That way the DSP will compute the FFT based on saved, static data and will only update if[...]

Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–203 Whether Zoom is on or off, you can press Reset (main) ➞ Reset Live Factors or Reset All Factors (side) to return the zoomed FFT waveform to no magnifi- cation. Zoom always uses either sin(x)/x or linear interpolation when expanding displayed waveforms.[...]

Using Features for Advanced Applications 3–204 TDS 500C, TDS 600B, & TDS 700C User Manual  Filter the input to bandwidth limit it to frequencies below that of the Nyquist frequency .  Recognize and ignore the aliased frequencies. If you think you have aliased frequencies in your FFT , select the source channel and adjust the horizontal [...]

Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–205 T o measure the phase relative to most source waveforms, you need only to center the positive peak around the zero phase point. (For instance, center the positive half cycle for a sine or square wave around the zero phase point.) Use the following method[...]

Using Features for Advanced Applications 3–206 TDS 500C, TDS 600B, & TDS 700C User Manual Y ou specify the phase suppression level in dB with respect to 1 V RMS . If the magnitude of the frequency is greater than this threshold, then its phase angle will be displayed. However , if it is less than this threshold, then the phase angle will be s[...]

Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–207 The FFT windowing acts like a bandpass filter between the FFT time domain record and the FFT frequency domain record. The shape of the window controls the ability of the FFT to resolve (separate) the frequencies and to accurately measure the amplitude of[...]

Using Features for Advanced Applications 3–208 TDS 500C, TDS 600B, & TDS 700C User Manual In step 8 (page 3–195) in T o Cr eate an FFT , the four windows are listed in order according to their ability to resolve frequencies versus their ability to accurately measure the amplitude of those frequencies. The list indicates that the ability of [...]

Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–209 Leakage results when the time domain waveform delivered to the FFT function contains a non-integer number of waveform cycles. Since there are fractions of cycles in such records, there are discontinuities at the ends of the record. These discontinuities [...]

Using Features for Advanced Applications 3–210 TDS 500C, TDS 600B, & TDS 700C User Manual Rectangular Window 0 dB -20 -40 -50 Hanning Window 0 dB -20 -40 -60 -80 Hamming Window 0 dB -20 -40 -60 Blackman-Harris Window 0 dB -20 -40 -60 -80 -100 -101 FFT Window T ype Bandpass Filter 0.89 –3 dB Bandwidth Highest Side Lobe 1.28 1.28 1.28 –13 d[...]

Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–21 1 The math waveform, derived from the sampled waveform, is computed based on the following equation: Y n + ( X (n ) 1) * X n ) 1 T Where: X is the source waveform Y is the derivative math waveform T is the time between samples Since the resultant math wav[...]

Using Features for Advanced Applications 3–212 TDS 500C, TDS 600B, & TDS 700C User Manual Derivative Math Waveform Source Waveform Figure 3–101: Derivative Math W aveform Once you have displayed your derivative math waveform, you can use automated measurements to make various parameter measurements. Do the following steps to display automat[...]

Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–213 Figure 3–102: Peak-Peak Amplitude Measurement of a Derivative W aveform The settings you make for offset, scale, and position af fect the math waveform you obtain. Note the following tips for obtaining a good display:  Y ou should scale and position[...]

Using Features for Advanced Applications 3–214 TDS 500C, TDS 600B, & TDS 700C User Manual Because of the method the oscilloscope uses to scale the source waveform before differentiating that waveform, the derivative math waveform may be too lar ge vertically to fit on screen — even if the source waveform is only a few divisions on screen. Y[...]

Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–215 Whether zoom is on or off, you can press Reset (main) ➞ Reset Live Factors or Reset All Factors (side) to return the zoomed derivative waveform to no magnification. W aveform Integration The Advanced DSP Math capabilities of the TDS Oscilloscope includ[...]

Using Features for Advanced Applications 3–216 TDS 500C, TDS 600B, & TDS 700C User Manual T o obtain an integral math waveform, do the following steps: 1. Connect the waveform to the desired channel input and select that channel. 2. Adjust the vertical and horizontal scales and trigger the display (or press AUTOSET ). 3. Press MORE ➞ Math1 [...]

Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–217 Source Waveform Integral Math W aveform Figure 3–103: Integral Math W aveform Once you have displayed your integrated math waveform, use cursors to measure its voltage over time. 1. Be sure MORE is selected (lighted) in the channel selection buttons an[...]

Using Features for Advanced Applications 3–218 TDS 500C, TDS 600B, & TDS 700C User Manual Source Waveform Integral Math W aveform Figure 3–104: H Bars Cursors Measure an Integral Math W aveform 7. Press Function (main) ➞ V Bars (side). Use the general purpose knob to align one of the two vertical cursors to a point of interest along the h[...]

Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–219 13. Read the following values from the cursor readouts:  Read the integrated voltage over time between the X s of both paired cursors in volt-seconds from the  : readout.  Read the integrated voltage over time between the X of the selected curso[...]

Using Features for Advanced Applications 3–220 TDS 500C, TDS 600B, & TDS 700C User Manual Y ou may be able to avoid saturating your integral waveform if you choose a shorter record length. (Press HORIZONT AL MENU ➞ Record Length (main).) Reducing the sample rate (use the HORIZONT AL SCALE knob) with the source channel selected might also pr[...]

Appendices[...]

TDS 500C, TDS 600B, & TDS 700C User Manual A–1 Appendix A: Options and Accessories This appendix describes the various options as well as the standard and optional accessories that are available for the TDS Oscilloscope. Options T ektronix will ship the options shown in T able A–1: T able A–1: Options Option # Label Description A1 Univers[...]

Appendix A: Options and Accessories A–2 TDS 500C, TDS 600B, & TDS 700C User Manual T able A–1: Options (cont.) Option # Description Label 1M 130,000 record length Extend record length from 50,000 samples standard as follows: TDS 520C and TDS 724C: T o 250,000 samples on one channel and 130,000 on two channels TDS 540C, TDS 754C, & TDS 7[...]

Appendix A: Options and Accessories TDS 500C, TDS 600B, & TDS 700C User Manual A–3 T able A–1: Options (cont.) Option # Description Label 2D T wo probes Delete two standard probes normally shipped with the oscilloscope (Option applies only to TDS 520C, TDS 620B, and TDS 724C models.) 2F Advanced DSP math Add advanced DSP math features such [...]

Appendix A: Options and Accessories A–4 TDS 500C, TDS 600B, & TDS 700C User Manual T able A–2: Standard Accessories (Cont.) Accessory Part Number Probes: TDS 754C: Four P6139A 10X, 500 MHz Passive probes TDS 724C: T wo P6139A 10X, 500 MHz Passive probes TDS 644B: Four P6243 probes TDS 620B: T wo P6139A probes TDS 540C: Four P6139A 10X, 500 [...]

Appendix A: Options and Accessories TDS 500C, TDS 600B, & TDS 700C User Manual A–5 The following optional accessory probes are recommended for use with your oscilloscope:  P6701B Optical-to-Electrical Analog Converter: 500 to 950 nm (DC to 1 GHz, 1 V/mW)  P6703B Optical-to-Electrical Analog Converter: 1 100 to 1700 nm (DC to 1 GHz, 1 V/[...]

Appendix A: Options and Accessories A–6 TDS 500C, TDS 600B, & TDS 700C User Manual  P5100 High V oltage Passive probe, 2.5 kV , DC to 250 MHz  P5205 High V oltage differential probe, 1.3 kV (differential), DC to 100 MHz  ADA 400A differential preamp, switchable gain  AM 503S — DC/AC 50 MHz Current measurement system, AC/DC. Supp[...]

Appendix A: Options and Accessories TDS 500C, TDS 600B, & TDS 700C User Manual A–7 The optional accessories listed in T able A–4 are T ektronix software products recommended for use with your oscilloscope. T able A–4: Accessory software Software Part number W avewriter: A WG and waveform creation S3FT400 W aveStar T : Waveform capture and[...]

Appendix A: Options and Accessories A–8 TDS 500C, TDS 600B, & TDS 700C User Manual[...]

TDS 500C, TDS 600B, & TDS 700C User Manual B–1 Appendix B: Algorithms The TDS Oscilloscope can take 25 automatic measurements. By knowing how it makes these calculations, you may better understand how to use your oscillo- scope and how to interpret your results. Measurement V ariables The oscilloscope uses a variety of variables in its calcul[...]

Appendix B: Algorithms B–2 TDS 500C, TDS 600B, & TDS 700C User Manual Histogram Method — attempts to find the highest density of points above and below the waveform midpoint. It attempts to ignore ringing and spikes when determining the 0% and 100% levels. This method works well when measuring square waves and pulse waveforms. The oscillosc[...]

Appendix B: Algorithms TDS 500C, TDS 600B, & TDS 700C User Manual B–3 LowRef — the waveform low reference level. Used in fall and rise time calculations. T ypically set to 10%. Y ou can set it from 0% to 100% or to a voltage level. Mid2Ref — the middle reference level for a second waveform (or the second middle reference of the same wavef[...]

Appendix B: Algorithms B–4 TDS 500C, TDS 600B, & TDS 700C User Manual MCross1, MCross2, and MCross3 — refer to the first, second, and third   cross times, respectively . (See Figure B–1.) The polarity of the crossings does not matter for these variables, but the crossings alternate in polarity; that is, ?[...]

Appendix B: Algorithms TDS 500C, TDS 600B, & TDS 700C User Manual B–5 StartCycle — is the starting time for cycle measurements. It is a floating-point number with values between 0.0 and (  – 1.0), inclusive.  =  EndCycle — is the ending time for cycle[...]

Appendix B: Algorithms B–6 TDS 500C, TDS 600B, & TDS 700C User Manual Measurement Algorithms The automated measurements are defined and calculated as follows:  =  –  The arithmetic area for one waveform. Remember that one waveform is not necessarily equal to one cycle. For cyclical data you ma[...]

Appendix B: Algorithms TDS 500C, TDS 600B, & TDS 700C User Manual B–7 T iming measurement. The duration of a burst. 1. Find  on the waveform. This is  . 2. Find the last  (begin the search at  and search toward  ). Thi[...]

Appendix B: Algorithms B–8 TDS 500C, TDS 600B, & TDS 700C User Manual T iming measurement. The amount of time between the  and   crossings of two different traces, or two dif ferent places on the same trace. Delay measurements are actually a group of measurements. T o get a specific delay measurement, yo[...]

Appendix B: Algorithms TDS 500C, TDS 600B, & TDS 700C User Manual B–9 High HighRef LowRef Low TLF THF Fall Time Figure B–2: Fall Time 3. From  , continue the search, looking for a crossing of  . Update  if subsequent   crossings are found. When a  crossing is found, [...]

Appendix B: Algorithms B–10 TDS 500C, TDS 600B, & TDS 700C User Manual 0% (lowest) voltage reference value calculated. (See High, Low on page B–1.) Using the min-max measurement technique:  =  Amplitude (voltage) measurement. The maximum voltage. T ypically the most positive peak voltage. Examine all  [...]

Appendix B: Algorithms TDS 500C, TDS 600B, & TDS 700C User Manual B–1 1 T iming measurement. The ratio of the negative pulse width to the signal period expressed as a percentage. NegativeW idth is defined in Negative Width , below . If P eriod = 0 or undefined then return an error . NegativeDutyCycle = NegativeWidth Period 100 % Amplitude (vo[...]

Appendix B: Algorithms B–12 TDS 500C, TDS 600B, & TDS 700C User Manual T iming measurement. T ime taken for one complete signal cycle. The reciprocal of frequency . Measured in seconds.   =  –  T iming measurement. The amount of phase shift, expressed in degrees of the target wavef[...]

Appendix B: Algorithms TDS 500C, TDS 600B, & TDS 700C User Manual B–13 T iming measurement. The ratio of the positive pulse width to the signal period, expressed as a percentage. P ositiveW idth is defined in Positive Width , following. If P eriod = 0 or undefined then return an error . P ositiveDutyCycle = PositiveWidth Period 100 % Amplitud[...]

Appendix B: Algorithms B–14 TDS 500C, TDS 600B, & TDS 700C User Manual 3. From  , continue the search, looking for a crossing of  . Update  if subsequent  crossings are found. If a   crossing is found, it becomes the high rise time or  . (Use linear interpo[...]

Appendix B: Algorithms TDS 500C, TDS 600B, & TDS 700C User Manual B–15 The integration algorithm used by the oscilloscope is as follows: ŕ B A W ( t ) dt is approximated by ŕ B A W ^ ( t ) dt where: W(t) is the sampled waveform  ^ (  ) is the continuous function obtained by linear interpolation of W(t) A and B are numbers between 0.0 [...]

Appendix B: Algorithms B–16 TDS 500C, TDS 600B, & TDS 700C User Manual Measurements on Envelope W aveforms T ime measurements on envelope waveforms must be treated differently from time measurements on other waveforms, because envelope waveforms contain so many apparent crossings. Unless otherwise noted, envelope waveforms use either the mini[...]

Appendix B: Algorithms TDS 500C, TDS 600B, & TDS 700C User Manual B–17 2. If the pair >  , use the minima, else use maxima. If all pairs straddle  , use maxima. See Figure B–4. The Burst W idth measurement always uses both maxima and minima to determine crossings. Missing or Out-of-Range Samples If som[...]

Appendix B: Algorithms B–18 TDS 500C, TDS 600B, & TDS 700C User Manual[...]

TDS 500C, TDS 600B, & TDS 700C User Manual C–1 Appendix C: Packaging for Shipment If you ship the TDS Oscilloscope, pack it in the original shipping carton and packing material. If the original packing material is not available, package the instrument as follows: 1. Obtain a corrugated cardboard shipping carton with inside dimensions at least[...]

Appendix C: Packaging for Shipment C–2 TDS 500C, TDS 600B, & TDS 700C User Manual[...]

TDS 500C, TDS 600B, & TDS 700C User Manual D–1 Appendix D: Probe Selection The TDS Oscilloscope can use a variety of T ektronix probes for taking different kinds of measurements. T o help you decide what type of probe you need, this section introduces the five major types of probes: passive, active, current, optical, and time-to-voltage probe[...]

Appendix E: Probe Selection D–2 TDS 500C, TDS 600B, & TDS 700C User Manual However , their 8 pF to 12 pF (over 60 pF for 1X) capacitive loading can distort timing and phase measurements. Use high input resistance passive probes for measurements involving:  Device characterization (above 15 V , thermal drift applications)  Maximum amplit[...]

Appendix E: Probe Selection TDS 500C, TDS 600B, & TDS 700C User Manual D–3 Figure D–1: T ypical High V oltage Probes Active V oltage Probes Active voltage probes, sometimes called “FET” probes, use active circuit elements such as transistors. There are three classes of active probes:  High speed active  Differential active  Fix[...]

Appendix E: Probe Selection D–4 TDS 500C, TDS 600B, & TDS 700C User Manual Active probes offer low input capacitance (1 to 2 pF typical) while maintaining the higher input resistance of passive probes (10 k W to 10 M W ). Like Z O probes, active probes are useful for making accurate timing and phase measurements. However , they do not degrade[...]

Appendix E: Probe Selection TDS 500C, TDS 600B, & TDS 700C User Manual D–5 Use a current probe by clipping its jaws around the wire carrying the current that you want to measure. (Unlike an ammeter which you must connect in series with the circuit.) Because current probes are noninvasive, with loading typically in the milliohm to low W range,[...]

Appendix E: Probe Selection D–6 TDS 500C, TDS 600B, & TDS 700C User Manual Applications include measuring the transient optical properties of lasers, LEDs, electro-optic modulators, and flashlamps. Y ou can also use these probes in the development, manufacturing, and maintenance of fiber optic control networks, local area networks (LANs), fib[...]

TDS 500C, TDS 600B, & TDS 700C User Manual E–1 Appendix E: Inspection and Cleaning Inspect for dirt and damage on and clean the exterior of the TDS Oscilloscope. When done regularly , this preventive maintenance may prevent oscilloscope malfunction and enhance its reliability . How often to do this preventive maintenance depends on the severi[...]

Appendix E: Cleaning E–2 TDS 500C, TDS 600B, & TDS 700C User Manual Inspection. Inspect the outside of the oscilloscope for damage, wear , and missing parts, using T able E–1 as a guide. Oscilloscopes that appear to have been dropped or otherwise abused should be checked thoroughly to verify correct operation and performance. Immediately re[...]

TDS 500C, TDS 600B, & TDS 700C User Manual F–1 Appendix F: Programmer Disk The TDS Family Programmer disk is a Microsoft W indows help file that covers operating your oscilloscope using the General Purpose Interface Bus (GPIB) (optional on some oscilloscopes). The disk also includes some example programs. The program runs on a PC-compatible s[...]

Appendix F: Programmer Disk F–2 TDS 500C, TDS 600B, & TDS 700C User Manual[...]

Glossary[...]

TDS 500C, TDS 600B, & TDS 700C User Manual Glossary–1 Glossary 2 + 2 channel operation T wo-plus-two channel operation limits the simultaneous display of channels to two of the four channels provided. Channels not displayed can be used to couple a triggering signal to the oscilloscope. AC coupling A type of signal transmission that blocks the[...]

Glossary Glossary–2 TDS 500C, TDS 600B, & TDS 700C User Manual AND A logic (Boolean) function in which the output is true when and only when all the inputs are true. On the oscilloscope, that is a trigger logic pattern and state function. Area Measurement of the waveform area taken over the entire waveform or the gated region. Expressed in vo[...]

Glossary TDS 500C, TDS 600B, & TDS 700C User Manual Glossary–3 Channel/probe deskew A relative time delay for each channel. This lets you align signals to compensate for the fact that signals may come in from cables of differing length. Channel Reference Indicator The indicator on the left side of the display that points to the position aroun[...]

Glossary Glossary–4 TDS 500C, TDS 600B, & TDS 700C User Manual Digitizing The process of converting a continuous analog signal such as a waveform to a set of discrete numbers representing the amplitude of the signal at specific points in time. Digitizing is composed of two steps: sampling and quantizing. Display system The part of the oscillo[...]

Glossary TDS 500C, TDS 600B, & TDS 700C User Manual Glossary–5 General purpose knob The large front-panel knob with an indentation. Y ou can use it to change the value of the assigned parameter . Glitch positive trigger T riggering occurs if the oscilloscope detects positive spike widths less than the specified glitch time. Glitch negative tr[...]

Glossary Glossary–6 TDS 500C, TDS 600B, & TDS 700C User Manual High The value used as 100% in automated measurements (whenever high ref, mid ref, and low ref values are needed as in fall time and rise time measure- ments). May be calculated using either the min/max or the histogram method. W ith the min/max method (most useful for general wav[...]

Glossary TDS 500C, TDS 600B, & TDS 700C User Manual Glossary–7 Interleaving TDS 500B and TDS 700A Models Only: A method by which these oscilloscopes attain higher digitizing speeds. The oscilloscope applies the digitizing resources of unused channels (that is, channels that are turned off) to sample those that are in use (turned on). T able 3[...]

Glossary Glossary–8 TDS 500C, TDS 600B, & TDS 700C User Manual Mean Amplitude (voltage) measurement of the arithmetic mean over the entire waveform. Minimum Amplitude (voltage) measurement of the minimum amplitude. T ypically the most negative peak voltage. NAND A logic (Boolean) function in which the output of the AND function is complemente[...]

Glossary TDS 500C, TDS 600B, & TDS 700C User Manual Glossary–9 Oscilloscope An instrument for making a graph of two factors. These are typically voltage versus time. Peak Detect acquisition mode A mode in which the oscilloscope saves the minimum and maximum samples over two adjacent acquisition intervals. F or m a ny g litch-free signals, tha[...]

Glossary Glossary–10 TDS 500C, TDS 600B, & TDS 700C User Manual Positive width A timing measurement of the distance (time) between two amplitude points — rising-edge MidRef (default 50%) and falling-edge MidRef (default 50%) — on a positive pulse. Posttrigger The specified portion of the waveform record that contains data acquired after t[...]

Glossary TDS 500C, TDS 600B, & TDS 700C User Manual Glossary–1 1 Rise time The time it takes for a leading edge of a pulse to rise from a LowRef value (typically 10%) to a HighRef value (typically 90%) of its amplitude. RMS Amplitude (voltage) measurement of the true Root Mean Square voltage. Runt trigger A mode in which the oscilloscope trig[...]

Glossary Glossary–12 TDS 500C, TDS 600B, & TDS 700C User Manual Side menu Menu that appears to the right of the display . These selections expand on main menu selections. Side menu buttons Bezel buttons to the right of the side menu display . They allow you to select items in the side menu. Slew Rate trigger A mode in which the oscilloscope t[...]

Glossary TDS 500C, TDS 600B, & TDS 700C User Manual Glossary–13 V ertical bar cursors The two vertical bars you position to measure the time parameter of a waveform record. The oscilloscope displays the value of the active (move- able) cursor with respect to the trigger and the time value between the bars. W aveform The shape or form (visible[...]

Glossary Glossary–14 TDS 500C, TDS 600B, & TDS 700C User Manual[...]

Index[...]

TDS 500C, TDS 600B, & TDS 700C User Manual Index–1 Index Numbers 1/seconds (Hz) , Cursor menu, 3–131 2 + 2 channel operation, xiv , 1–1, 1–2, Glossary–1 20 MHz , V ertical menu, 3–17 250 MHz , V ertical menu, 3–17 A AC coupling, Glossary–1 AC line voltage, trigger input, 3–64 AC , Main T rigger menu, 3–74 Accept Glitch , Mai[...]

Index Index–2 TDS 500C, TDS 600B, & TDS 700C User Manual A verage acquisition mode, 3–30, 3–61, Glossary–2 A verage mode, Acquire menu, 3–184 A verage , Acquire menu, 3–33 A verage , More menu, 3–191 B Bandwidth, Glossary–2 Selecting, 3–17 Bandwidth , V ertical menu, 3–17 Banner , displaying, 3–181–3–182 Base , Cursor [...]

Index TDS 500C, TDS 600B, & TDS 700C User Manual Index–3 Color , 3–44 How to set, 3–44 Color Deskjet, 3–165 Color Matches Contents , Color menu, 3–47, 3–48 Color menu, 3–44 Bold , 3–45 Change Colors , 3–46 Collision Contrast , 3–48 Color , 3–46, 3–47, 3–48 Color Matches Contents , 3–47, 3–48 Hardcopy , 3–45 Hue ,[...]

Index Index–4 TDS 500C, TDS 600B, & TDS 700C User Manual D Data Source , Main T rigger menu, 3–86 Date/T ime On hardcopies, 3–168 T o set, 3–169 DC coupling, Glossary–3 DC offset, 3–201 for DC correction of FFT s, 3–201 with math waveforms, 3–201, 3–219 DC , Main T rigger menu, 3–74 Default Model(s), xiv Define Inputs , Main[...]

Index TDS 500C, TDS 600B, & TDS 700C User Manual Index–5 YT , 3–43 Display , Display menu, 3–39 Display , Status menu, 3–179 Dots, 3–39 Dots style, Display menu, 3–186 Dots , Display menu, 3–39 DPU41 1–II , Hardcopy menu, 3–167 DPU412 , Hardcopy menu, 3–167 Drives, File Utilities menu, 3–164 Dual Wfm Math , More menu, 3–[...]

Index Index–6 TDS 500C, TDS 600B, & TDS 700C User Manual Frame Length , Horizontal menu, 3–60 Frame , Display menu, 3–42 Frame , Horizontal menu, 3–60 Frequency , 2–22, 3–1 15, Glossary–4 Front Cover removal, 1–7 Front panel, 2–4 Full , Display menu, 3–42 Full , V ertical menu, 3–17 Function , Cursor menu, 3–129, 3–130[...]

Index TDS 500C, TDS 600B, & TDS 700C User Manual Index–7 Histograms, 3–133 HistoMasks , Status menu, 3–179 Hits in Box, 3–135 Holdoff, trigger , 3–66, Glossary–6 Horiz Pos , Horizontal menu, 3–22 Horiz Scale , Horizontal menu, 3–22 Horizontal Bar cursors, 3–127, Glossary–6 Control, 3–19–3–62 Menu, 3–68 Position, 3–[...]

Index Index–8 TDS 500C, TDS 600B, & TDS 700C User Manual Level , T elecom T rigger menu, 3–106 Level, T rigger , 3–68 LF Rej , Main T rigger menu, 3–74 Lightness , Color menu, 3–46 Limit T est Condition Met , Acquire menu, 3–187 Limit T est Setup , Acquire menu, 3–186, 3–187 Limit T est Sources , Acquire menu, 3–186 Limit T es[...]

Index TDS 500C, TDS 600B, & TDS 700C User Manual Index–9 Math1/2/3 , More menu, 3–191 Maximum, 3–1 15, Glossary–7 Mean, 3–1 15, 3–135, Glossary–8 Mean +– 1 StdDev , 3–135 Mean +– 2 StdDev , 3–135 Mean +– 3 StdDev , 3–135 Mean dBm, 3–1 16, B–10 MEASURE button, 3–1 17, 3–135 Measure Delay menu Create Measrmnt , 3[...]

Index Index–10 TDS 500C, TDS 600B, & TDS 700C User Manual Measure, 3–1 17, 3–124 More, 3–158, 3–189, 3–193, 3–21 1 Operation, 2–7 Pop-up, 2–8, Glossary–9 Save/Recall, 3–152 Save/Recall Acquisition, 3–156, 3–159 Save/Recall W aveform, 3–155 Setup, 2–10, 3–1 1 Status, 3–179 Utility , 3–166 Mid Ref , Measure men[...]

Index TDS 500C, TDS 600B, & TDS 700C User Manual Index–1 1 P P6205 Active Probe, 1–5 P6701A/B with calibration, A–2 P6703A/B with calibration, A–2 Packaging, C–1 Paired cursor , 3–127 PA L , Display menu, 3–42 Palette , Color menu, 3–45 Palette , Hardcopy menu, 3–167 Passive voltage probes, D–1 Pattern trigger , 3–76 How t[...]

Index Index–12 TDS 500C, TDS 600B, & TDS 700C User Manual Edge trigger , 3–72 General purpose knob, 2–6 Logic trigger , 3–79 Measurement, 3–1 16, 3–1 17 Record view , 2–6 Snapshot, 3–123 T ime base, 2–6 T rigger , 2–6, 3–71 T rigger Level Bar , 3–40 T rigger Point, 3–40 Readout, Cursor , Paired, 3–212 Readout, cursor[...]

Index TDS 500C, TDS 600B, & TDS 700C User Manual Index–13 user status, 3–152 Save/Recall W A VEFORM button, 3–155, 3–160 Save/Recall W aveform menu, 3–155 active status, 3–155 Autosave , 3–159 Delete Refs , 3–157 empty status, 3–155 File Utilities , 3–160 Ref1, Ref2, Ref3, Ref4, File , 3–158 Save Acq , 3–156 Save Format [...]

Index Index–14 TDS 500C, TDS 600B, & TDS 700C User Manual Histo/Masks , 3–179 I/O , 3–179 System , 3–179 T rigger , 3–179 W aveforms , 3–179 StdDev , 3–135 Stop After Limit T est Condition Met , Acquire menu, 3–187 Stop After , Acquire menu, 3–35, 3–187 Style , Display menu, 3–39 Switch, principal power , 1–7, 2–5 Syst[...]

Index TDS 500C, TDS 600B, & TDS 700C User Manual Index–15 T riggering on W aveforms, 3–63 T riggering, Auto mode, Incompatible with InstaV u, 3–58 T rue for less than , Main T rigger menu, 3–83 T rue for more than , Main T rigger menu, 3–83 T ype Logic , Main T rigger menu Logic , 3–81, 3–85, 3–86 Pulse , 3–97 T ype Pulse , Ma[...]

Index Index–16 TDS 500C, TDS 600B, & TDS 700C User Manual How to set up, 3–96–3–1 12 Width , Main T rigger menu, 3–92, 3–96 W indow , 3–206 Blackman-Harris, 3–195, 3–207, 3–210 characteristics of, 3–208 Hamming, 3–195, 3–207, 3–210 Hanning, 3–195, 3–207, 3–210 rectangular , 3–195, 3–207, 3–210 rectangular[...]