CV-A10 CL and CV-A70 CL
Gain settings.
AS=0, AS=1.
The video gain can be selected between manual gain (AS=0), or AGC (AS=1). Manual gain is set
by the gain level command GA=. The reference level for the AGC is set by the AGC reference
level AG=. In AGC mode the video level is kept constant by the automatic gain control circuit
within a 15 dB range. For CV-A70CL 12 dB. Together with the auto shutter function it will keep
the video output constant over a wide range of illumination. For continuous and RCT mode only.
Black level.
BL=0 through BL=255.
Black level (or set-up level) will set the video level for black.
Bit allocation.
BA=0, BA=1.
The video output in Camera Link can be selected to be 10 or 8 bits (BA=0, BA=1). For 8 bits only
the 8 most significant bits are output.
The below figures shows the bit allocations for Gamma 1.0 and Gamma 0.45
Gamma 1.
Gamma 0.45. CV-A10CL only.
CCD out Analog Signal
Digital
Out(10bit)
Digital
Out(8bit)
Black
Setup 3.6%
25mV
32LSB
8LSB
200mV 700mV 890LSB 222LSB
230mV
800mV
1023LSB
255LSB
CCD out Analog Signal
Digital
Out(10bit)
Digital
Out(8bit)
Black
Setup 3.6%,
25mV
32LSB
8LSB
200mV 700mV 890LSB 222LSB
270mV
950mV
1023LSB
255LSB
Fig. 33. Bit allocation.
Iris video output.
The iris video output in pin #4 on 12 pin HR is 700 mv
for 100% video out in Camera Link. The iris video
signal is taken before the gain circuit. It is without
sync.
The iris video signal can be used for auto iris lens
drive in continuous and RCT mode.
Do not use the auto shutter (CCD iris) function
together with an auto iris lens It may result in an
unstable regulation.
Fig. 34. Iris video output.
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