STC-GE83A
STC-GEC83A
User Guide
15
Rev 1.01
3. Exposure Timing with the Negative Polarity Trigger Signal
Note 1: The trigger signal will be removed by the filtering if the pulse width of the input trigger signal is less than 30 CLK.
Please input a trigger signal with more than 31 CLK pulse width.
Note 2: The exposure will start 110 CLK after the rising edge of the trigger signal.
D. Edge Preset Trigger Mode (Trigger input while the image is out)
In this trigger mode, the camera exposure starts at the rising edge of the trigger pulse. The exposure duration time is preset by
the DIP Switch settings.
If trigger signal input is required while the image is out, then it is necessary to disable the trigger signal mask with the
communication.
To avoid generating additional noise on the image, it is necessary to set the
“H reset” at the exposure start mode.
1. Timing
Note 1: The video output will be V reset by the next internal HD signal immediately after the exposure is finished.
Note 2: The exposure time is set by the preset electronic shutter speed.
Input Trigger signal
Exposure time
T1'
SUB
SG
Exposure time: T1' = Preset exposure time
Filtering *Note.1
30CLK
Trigger signal
(With Photocoupler delay)
Less than
60 useconds
Exposure
time
Max. 1H
Internal VD
CCD exposure
Trigger signal
(Rising edge)
Video out
*Note. 1
*Note. 2
FVAL
