No.11S031-03
18
STC-CL500E/CLC500E
Users guide Rev. 1.3
3.2.2 Pulse width trigger mode (Non-Reset)
Note.1: The camera does NOT switch to the normal mode when the long exposure mode is set.
Note.2: The video output is going to be V reset by the internal VD signal after the exposure is finished.
Note.3: The exposure time sets by the pulse width of the trigger signal.
Note.4: FVAL signal does NOT output if NO exposure with the trigger signal while the trigger mode.
3.2.3 Pulse width trigger mode (Exposure timing)
Note.1: The trigger signal is removed by the filtering if the pulse width of the input trigger signal is smaller than
30 CLK.
Please input the trigger signal has more then 31 CLK pulse width.
Note.2: The exposure is going to start 198 CLK after the rising edge of the trigger signal.
T1'
SUB
SG
(741 CLK)
Trigger signal
Exposure time
Exposure time: T1' = T1 + 741 CLK
T1
30 CLK
Filtering *Note.1
Exposure
time
Sweep charges
Automatically switch to the normal
mode if the pulse width of the
trigger signal is more than
500 mseconds.
*Note. 1
Camera mode
Internal VD
CCD exposure
Trigger signal
（
Positive
）
Video out
*Note. 3
FVAL
*Note. 4
Next VD
*Note. 2
Next VD
Normal mode
Normal mode
Trigger mode
