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Principles of Operation
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Video Input Signals
This section describes the following aspects of the supported input
signals:
• Video signal types,
• Video input sources,
• Brightness and contrast settings,
• Pixel clock,
• Triggers, and
• Look-up tables (LUTs).
Video Signal Types
The DT3162 can acquire monochrome images from following types of
standard, monochrome, composite video input signals:
• RS-170/RS-343
−
Standard for 60 Hz monochrome video signals.
A video frame consists of 525 lines, 480 lines of which are visible.
• CCIR
−
Standard for 50 Hz monochrome video signals. A video
frame consists of 625 lines, 575 lines of which are visible.
Note:
Refer to
for more information on the differences
between the RS-170 and CCIR specifications and the values defined
by the DT3162 board.
In addition, the DT3162 can acquire monochrome images from
nonstandard sources, such as variable-scan, slow-scan,
asynchronous/reset, and high-resolution cameras. These
nonstandard video sources must provide their own control signals.
Содержание DT3162
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Страница 39: ...29 A Specifications ...
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Страница 57: ...47 C RS 170 and CCIR Specifications and the DT3162 RS 170 Specification 48 CCIR Specification 52 ...
Страница 66: ...Appendix C 56 ...
Страница 67: ...57 D Values for Use with the DT Active Monochrome Frame Grabber Control ...
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