Nominal Gain
The nominal gain is the one that causes a full-scale response at the digitizer output when the luminance part of the applied video signal is exactly 0.7 V.
The table below fully defines the nominal gain condition:
Analog video signal |
Condition |
Digitized value |
|
8-bit digitizer |
10-bit digitizer |
||
Black |
Luminance level is equal to blanking level |
0 |
0 |
White |
Luminance level is 0.7 V above blanking level |
255 |
1023 |
To establish the gain of all camera taps to the nominal value, set the GainCtl parameter to 0DB and all involved GainTrim<1,2,3> parameters to zero.
An alternative way is to set the GainCtl parameters to LIN, the Gain parameter to 1000 and all involved GainTrim<1,2,3> parameters to 0.