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FV-L200B1
User’s Guide Rev. 1.01
3.2.2 Pulse Width Trigger Mode (Non-Reset)
Note 1: The camera does NOT switch to normal mode when the long exposure mode is selected.
This timing chart shows with the long exposure mode selected.
Note 2: The internal VD signal does not reset by the trigger signal.
The video output signal is sent out at the next internal VD timing.
Note 3: The exposure time is controlled by the pulse width of the trigger signal as depicted.
Note 4: The FVAL signal does not output when the exposure by the trigger signal does not exists.
3.2.3 Exposure Timing
Notes: The trigger signal equal to or shorter than 30 CLK is removed by the filtering system.
Input trigger signal has to be more than 31 CLK pulse width.
The exposure starts 101 CLK after the rising edge of the trigger signal.
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 modeTrigger mode
T1'
SUB
SG
(127 CLK)
Trigger signal
Exposure time
Exposure time: T1' = T1 + 127 CLK
T1
30 CLK
Filtering *Note.1