BOBCAT HD-SDI
Hardware User’s Manual
Imperx, Inc.
Rev. 1.4
6421 Congress Ave.
6/2/2014
Boca Raton, FL 33487
+1 (561) 989-0006
46 of 175
camera timing has a flag for odd and even frames. Each strobe can be assigned to
every frame, only odd frames, only even frames, or the strobe can be disabled. The
actual strobe signal can be mapped to the corresponding camera outputs – please refer
to the “I/O Control” section.
CAUTION NOTE
During Standard triggering mode the odd/even frame flag resets with each new trigger.
In this case, if the number of frames is set to 1 the strobe will be present only in
“Every Frame” and “Odd Frames”.
VCCD
STROBE 1
Frame Time
Position Strobe 1
Position Strobe 2
STROBE 2
Duration
Figure 2.7 – Strobe pulse positioning.
2.6.
GAIN and OFFSET
2.6.1.
Analog Domain – manual control
The camera has dual analog signal processors (or Analog Front End – AFE),
one per channel. It features one dual processor, each containing a differential
input sample-and-hold amplifier (SHA), digitally controlled variable gain
amplifier (VGA), black level clamp and a 14-bit ADC. The programmable
internal AFE registers include independent gain and black level adjustment.
There are 1024 possible gain levels (
gcode
0 to 1023) and 1024 offset (clamp)
levels (
ocode
0 to 1023). Figure 2.8 shows the relationship between the video
