Data Translation DT3162, User Manual

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Video Input Signals
4
Video Input Sources
The DT3162 accepts one of three AC-coupled monochrome video
input sources. You specify the video source (VideoSource0,
VideoSource1, or VideoSource2) through software.
Pin C1 of connector J1 on the DT3162 is provided for video source 0.
Pin C2 of connector J1 on the DT3162 is provided for video source 1.
Pin C3 of connector J1 on the DT3162 is provided for video source 2.
You can access these signals using either the EP332 cable or the
Camera Interface Module.
Brightness and Contrast
The DT3162 provides programmable brightness and contrast settings.
Brightness allows you to move the entire grayscale range of the
image up or down to make the image lighter or darker. Contrast
affects the amplitude of the input signal and allows you to emphasize
or de-emphasize the difference between light and dark values.
Values for brightness range from 0 to 255, in increments of 1. Values
for contrast range from 0 to 99, in increments of 1.
You can use software to automatically adjust the image settings for
the board’s current environment by selecting recalibration.
Recalibration is useful if the board has experienced temperature
changes or the degradation of components over time, or if you want
to calibrate the image settings of all DT3162 boards used in the same
environment.
If you wish, you can also use software to restore the image settings to
their factory-default calibration values.