Teledyne EV71YC1MCL2010-BA0 User Manual page 33

Analog Gain in the ADC
The only analog Gain available in the UNIIQA+ is located at the sensor level, in the ADC
converter.
This "Preamp Gain" is in fact a variation of the ramp of the comparator of the ADC.
Then 3 Values are available : x1, x2 and x4. A gain x1 in a 12 bits conversion is equivalent
to x4 in 10 bits.
electrons
FWC
x1
x2
Clamp (Black Ref)
Setting
(10bits conversion)

Preamp Gain : (GainAbs
Set the Pre-amplification Gain. This command is available in the CommCam "Gain & Offset" section.
 Read function (ASCII): "r pamp";
Returned by the camera : Integer corresponding to one of the 3 different step values :

0 : x1 (0dB)

1 : x2 (6dB)

2 : x4 (12dB)
 Write function (ASCII): "w pamp" <int> ;

Gain: (GainAbs
Set the Amplification Gain. This command is available in the CommCam "Gain & Offset" section :
 Read function (ASCII): "r gain";
Returned by the camera : Value from 0 to 6193 corresponding to a Gain range of 0dB to +8dB
calculated as following : Gain(dB) = 20.log(1+ Gain/4096).
 Write function (ASCII): "w gain" <int> ;
U M UNIIQA+ M
SER ANUAL ONOCHROME
Comparator Ramps
at different Gains
or Format
x4
1024
with GainSelector= AnalogAll)
with GainSelector= GainAll)
– R J – 05/2017
EV
x1
x2
x4
LSB
4096
(12bits conversion)
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