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Texas Instruments MC-780PIx manuel d'utilisation

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Table des matières du manuel d’utilisation

  • Page 1

    MC-780PIx CCD Camera User ’ s Guide SOCU006 July 1998 Printed on Recycled Paper[...]

  • Page 2

    IMPORT ANT NOTICE T exas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify , before placing orders, that information being relied on is current and complete. All product[...]

  • Page 3

    Information About Cautions and Warnings iii Read This First Preface Read This First About This Manual This User ’s Guide describes the characteristics and operation of the MC-780PIA and MC-780PIH CCD V ideo Camera Modules. How to Use This Manual Use this manual for technical data, operating characteristics, and general fa- miliarization with the [...]

  • Page 4

    If Y ou Need Assistance iv If Y ou Need Assistance . . . If you want to . .. Contact T exas Instruments at . . . Visit TI online World Wide W eb: http://www .ti.com Receive general information World Wide W eb: http://www .ti.com/sc/docs/pic/home.htm or assistance North America, South America: (214) 644–5580 Europe, Middle East, Africa Dutch: Engl[...]

  • Page 5

    Running Title—Attribute Reference v Chapter Title—Attribute Reference Contents 1 Overview 1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 Main Features 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

  • Page 6

    Contents vi 4.2 Random Shutter (Fixed V Sync) 4-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3 Random Shutter (V Sync Reset) 4-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4 VI Mode Shutter 4-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

  • Page 7

    Illustrations vii Contents Figures 2–1 Rear Panel 2-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2 External Synchronization T erminal Resistance Switch SW4 2-4 . . . . . . . . . . . . . . . . . . . . . . . . . 2–3 Gain Mode Switch SW2 2-5 . . . . . . [...]

  • Page 8

    T ables viii T ables 2–1 Shutter Speed Control Switch SW1 2-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2 External Synchronization T erminal Resistance Switch SW4 2-4 . . . . . . . . . . . . . . . . . . . . . . . . . 2–3 Mode Switches SW3 2-4 . . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 9

    1-1 Overview Overview This User ’s Guide describes the operation and characteristics of the MC-780PIA and MC780PIH video cameras. This chapter gives an overview of the cameras and their features. Please read and keep this document as a reference. T opic Page 1.1 Main Features 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 10

    Main Features 1-2 Overview 1.1 Main Features The MC-780PIA and MC-780PIH are black-and-white video cameras that use fixed-sensor charge-coupled devices (CCDs). The following paragraphs de- scribe some of the main features of the cameras. 1.1.1 High Image Quality With 380,000 image-sensing elements, the CCDs reproduce very detailed images. 1.1.2 Mod[...]

  • Page 11

    Other Features 1-3 Overview 1.2 Other Features Long life span, high reliability Low distortion, high precision image High near infrared sensitivity Quick starting[...]

  • Page 12

    1-4 Overview[...]

  • Page 13

    2-1 Nomenclature and Use of Each Component Nomenclature and Use of Each Component This chapter describes the location and use of components, connectors, and controls. T opic Page 2-1 Mounting System 2-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Rear Panel Switches and T erminals 2-3 . . . . . . . [...]

  • Page 14

    Mounting System 2-2 Nomenclature and Use of Each Component 2.1 Mounting System The following paragraphs describe the mounting system for the camera modules. 2.1.1 Focus Ring C-Mount type lens and optical equipment are installed. If there is difficulty fo- cusing with the lens, fine adjustments can be made by loosening the two screws located on the [...]

  • Page 15

    Rear Panel Switches and T erminals 2-3 Nomenclature and Use of Each Component 2.2 Rear Panel Switches and T erminals This paragraph explains the functions of the rear panel switches and termi- nals. Figure 2–1 shows their locations. Changing Switch Settings Always disconnect power when changing the switch settings. Figure 2–1. Rear Panel (SW1) [...]

  • Page 16

    Rear Panel Switches and T erminals 2-4 Nomenclature and Use of Each Component T able 2–2. External Synchronization T erminal Resistance Switch SW4 Switch Position T erminal Resistance V alue Left 75 Ω Center 100 k Ω Right 150 Ω Figure 2–2. External Synchronization T erminal Resistance Switch SW4 Center Left Right Note: When outputting int[...]

  • Page 17

    Gain V ariable V olume Control VR1 2-5 Nomenclature and Use of Each Component T able 2–5. Gain Mode Switch SW2 Switch No. Gain Mode Left AGC Center Fixed Right V ariable Figure 2–3. Gain Mode Switch SW2 Center Left Right 2.2.5 Gain V ariable V olume Control VR1 When variable gain is selected with gain mode switch SW2 in the right position, gain[...]

  • Page 18

    DC IN/SYNC T erminal 2-6 Nomenclature and Use of Each Component The odd fields are low and the even fields are high for the pin 1 field index output. The pin 5 image signal is provided for auto-iris use so it cannot be con- nected to a monitor . The dc voltage output from pin 6 is the same as the input voltage. 2.2.8 DC IN/SYNC T erminal This termi[...]

  • Page 19

    Internal Switches 2-7 Nomenclature and Use of Each Component 2.3 Internal Switches Remove the camera cover to set the internal switches. Viewing the camera from the front, the switches are located on boards in the center and the left. The center board is called the clock board, and the left board is called the pro- cess board. Figure 2–5 shows th[...]

  • Page 20

    Internal Switches 2-8 Nomenclature and Use of Each Component T able 2–9. Option Output Switch S1 Switch Position Output Signal Upper Shutter monitor output Lower Pixel clock output Figure 2–7. Option Output Switch S1 Upper Lower 2.3.3 Gamma Switch SW1 Gamma switch SW1 changes the gamma characteristics as listed in T able 2–10 and shown in Fig[...]

  • Page 21

    Internal Switches 2-9 Nomenclature and Use of Each Component 2.3.5 Outline Emphasis Circuit ON/OFF Switch SW2 Switch SW2 controls the outline emphasis circuit on the MC-780PIH. Do not move this switch on the MC-780PIA. The outline emphasis circuit makes the image easier to see by emphasizing the image outline when the camera is used for surveillanc[...]

  • Page 22

    2-10 Nomenclature and Use of Each Component[...]

  • Page 23

    3-1 Using the External SYNC Mode Using the External SYNC Mode The camera can be synchronized externally by inputting an external sync sig- nal. When using external sync, set the clock board’s sync signal input/output switch (SW1) to the external sync signal in (upper switch position) and switches 3 and 4 to the mode switch (SW3), located on the r[...]

  • Page 24

    External Sync With Interlace 3-2 Using the External SYNC Mode 3.1 External Sync With Interlace On the rear panel, set switch 5 of mode switch SW3 to ON. 3.1.1 External Sync Signal Input Conditions HD signals: 15.734 kHz ± 1% (63.5 µ s ± 1%) VD signals: 262.5 H Phase In Figure 3–1, when the last VD transition is between 47.42 µ s ahead and 16.[...]

  • Page 25

    External Sync With No Interlace 3-3 Using the External SYNC Mode 3.2 External Sync With No Interlace On the rear panel, set switch 5 of mode switch SW3 to OFF . 3.2.1 External Sync Signal Input Conditions HD signals: 15.734 kHz ± 1% (63.5 µ s ± 1%) VD signals: 244 ~ 1021 H, (see Notes 1, and 2) Phase Figure 3–2. External Sync With No Interlace[...]

  • Page 26

    3-4 Using the External SYNC Mode[...]

  • Page 27

    4-1 Using the Shutter Modes Using the Shutter Modes This chapter describes the various shutter modes and how to use them. T opic Page 4.1 Continuous Shutter 4-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2 Random Shutter (Fixed V Sync) 4-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4[...]

  • Page 28

    Continuous Shutter 4-2 Using the Shutter Modes 4.1 Continuous Shutter On the rear panel mode switch SW3, set switch 1 to ON and switch 2 to OFF . Use the shutter speed control switch SW1 to set the shutter speed. Figure 4–1 shows the continuous shutter speed control timing. Figure 4–1. Continuous Shutter Speed-Control Timing 249 µ s (PIA) 142 [...]

  • Page 29

    Random Shutter (Fixed V Sync) 4-3 Using the Shutter Modes 4.2 Random Shutter (Fixed V Sync) On the rear panel mode switch SW3, set switch 1 to ON and switch 2 to OFF . Use the shutter speed control switch SW1 to set the shutter speed. The random shutter operates only when the shutter command has been added, so continuous shutter is the normal opera[...]

  • Page 30

    Random Shutter (V Sync Reset) 4-4 Using the Shutter Modes 4.3 Random Shutter (V Sync Reset) On the rear panel mode switch SW3, set switch 1 to OFF and switch 2 to ON. Use the shutter speed control switch SW1 to set the shutter speed. Figure 4–3 shows the random shutter speed control timing with V sync reset. The random shutter operates only when [...]

  • Page 31

    VI Mode Shutter 4-5 Using the Shutter Modes 4.4 VI Mode Shutter On the rear panel mode switch SW3, set switches 1 and 2 to ON. At this point there will be no image output. When an external VI command is input, expo- sure will occur for the period of the command. This mode is only for non-inter- lace. The image quality may be lower due to timed expo[...]

  • Page 32

    Precautionary Items 4-6 Using the Shutter Modes 4.5 Precautionary Items Observe the following precautions when operating the electronic shutter . The CCD for this camera uses the frame transfer method. At shutter speeds of 1/500, 1/1000, and 1/1500 second, the exposure period and the transfer period conflict with the readout period. There is black [...]

  • Page 33

    5-1 Initial Settings Initial Settings This chapter describes the modes of operation and the initial switch settings. T opic Page 5-1 Modes and Initial Switch Settings 5-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Chapter 5[...]

  • Page 34

    Modes and Initial Switch Settings 5-2 Initial Settings 5.1 Modes and Initial Switch Settings With this unit it is possible to switch the operating modes to suit the intended use. All mode settings can be set with switches. T able 5–1 summarizes the modes and initial switch settings. T able 5–1. Modes and Initial Switch Settings Function Initial[...]

  • Page 35

    6-1 Precautions for Use Precautions for Use T opic Page 6-1 Precautions for Use 6-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2 Maintenance 6-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Chapter 6[...]

  • Page 36

    Precautions for Use 6-2 Precautions for Use 6.1 Precautions for Use 6.1.1 Power Source The camera operates on +12 V . Use a stable ripple- and noise-free power source. 6.1.2 Heat Reduction T o keep the temperature inside the camera from rising in some situations (such as when operating the camera inside a tightly sealed case) it may be necessary to[...]

  • Page 37

    Maintenance 6-3 Precautions for Use 6.2 Maintenance Use a blower to remove dirt or dust adhering to the CCD glass cover . Wiping the glass forcefully can damage the glass or create static electricity that can damage the CCD. Use a soft, dry cloth to clean dirt off the exterior . If it is extremely dirty , use a small amount of a neutral detergent o[...]

  • Page 38

    6-4 Precautions for Use[...]

  • Page 39

    7-1 Specifications Specifications This chapter lists the specifications for the cameras. T opic Page 7-1 Image System 7-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2 Optical Elements and Other Specifications 7-3 . . . . . . . . . . . . . . . . . . . . . . Chapter 7[...]

  • Page 40

    Image System 7-2 Specifications 7.1 Image System T able 7–1 lists the image system specifications for the MC–780PIA; T able 7–2 lists specifications for the MC–780PIH. T able 7–1. MC–780PIA Image System Specifications Item Specification Imager Frame T ransfer Method CCD (TI manufactured CCD TC241-30) Effective Pixel Count 754 × 484 (ho[...]

  • Page 41

    Optical Elements and Other Specifications 7-3 Specifications 7.2 Optical Elements and Other Specifications T able 7–3 lists other specifications common to the two cameras. T able 7–3. Optical Elements and Other Specifications Item Specification Lens Mount C-mount Flange back 17.526 mm (can be fine adjusted) Synchronization System Internal/Exter[...]

  • Page 42

    7-4 Specifications[...]

  • Page 43

    8-1 Exterior Dimensions Exterior Dimensions This chapter lists exterior dimensions. T opic Page 8-1 Exterior Dimensions 8-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Chapter 8[...]

  • Page 44

    Exterior Dimensions 8-2 Exterior Dimensions 8.1 Exterior Dimensions Figure 8–1 shows the exterior dimensions for the camera. The following notes apply: 1) unit:mm 2) Since the focus ring is adjustable, this is the middle value (1.2 mm). 3) The TI logo for the camera cover is a sticker with one adhesive side. 4) The shape and designation may chang[...]

  • Page 45

    Exterior Dimensions 8-3 Exterior Dimensions Figure 8–1. Exterior Dimensions Optical Center 44 22 48 27 DC 12 V 500 mA VIDEO OUT LENS DC IN/ SYNC 40 11 2 93 13 8 79 14 14 23 10 4–M2.6–4.5 2–M4–5 U1/4–2OUNC–6 15 15 22 79 10 15 15 22 4–M2.6–4.5 FRONT BACK SIDE TOP BOTTOM[...]

  • Page 46

    8-4 Exterior Dimensions[...]

  • Page 47

    9-1 Other Issues Other Issues This chapter discusses cable and connector issues. T opic Page 9-1 Connectors 9-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Chapter 9[...]

  • Page 48

    Connectors 9-2 Other Issues 9.1 Connectors We do not sell cable connectors. They can be obtained from appropriate de- partments of Hirose Electrical Co. Main Business Office Gotanda I-S Building, 10th Floor 1-1 1 Osaki 5-chome, Shinagawa-ku, T okyo 141 T elephone: (03)3492-2162 Fax: (03)3490-9229 Osaka Business Office 2-22 T ai deramachi, Kita-ku, [...]

  • Page 49

    IMPORT ANT NOTICE T exas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify , before placing orders, that information being relied on is current and complete. All product[...]