40 NED
XCM4040SAT4 UME-0002-04
4.10 Setting Gain
The camera can adjust the analog gain (x1 to X11.2 in 21 steps) and the
digital gain.
As the diagram below indicates, increasing the gain setting
increases the slope of the camera’s response curve and results in a higher
camera output for a given amount of light.
Analog gain can be changed by sending the ”gax” command.
Digital gain can be changed by sending the “gdx” command.
Figure 4-10-1 PGA Gain Adjustment
Gain and noise values are proportionally related.
Adjust amount of gain in accordance with the requirements of your camera
system.
Ｆｓ
Output
Fs : Saturation Output
Gain a
Volume
of Light (lx
・
s)
(a<b<c)
Gain b
Gain c
