VCC-G20S20B
Rev.900-740-33
©2014 CIS Corporation. All rights reserved.
12
Trigger Input
Discharge
Read OUT
Exposure Time
Exposure = Trigger Width + 5
μ
s
Exposure Time
4.4
9.4
±0.035
μ
s
±0.035
μ
s
Pulse width trigger shutter mode 2 (Sync Non-Reset Type)
With trigger input, images at any timing can be captured with setting exposure time by trigger pulse width.
Signals are read out after waiting for the external VD (single) input so that the video output signals are read
out at the controlled timing. The down edge phase of external HD/VD signals should be matched. The time
frame to input an external single VD after trigger input is fallen, should be set between 150
μ
s to 100ms.
Exposure time = 9
μ
s
～
250ms (Actual Time= Trigger pulse width + 5
μ
s.)
Conditions: Trigger input pulse width = 4
μ
s
～
250ms, Positive Logic
Caution 1: When the next trigger is input before the completion of video signals output for the prior trigger,
the image could be improper.
Caution 2: Smear or blooming could occur when strong incident light is extensively illuminated, with setting
the electric shutter at high speed. To avoid this smear or blooming, lower the volume of incident light or use
a stroboscopic light source to adjust the light volume.
Caution 3: Please refer to the timing chart below for the actual time when exposure starts after trigger is
input, and the actual time when exposure completes at pulse width trigger shutter mode.
Trigger Input
Trigger Pulse Width
：
4
μ
s
～
250ms.
Read Out Signal
Exposure Time
Only Trigger Pulse Width.
External HD
External VD Input
(Single Pulse)
Wait Time
150
μ
s
100ms (Max)
Video Output
Video Active Period
8
10
1040
WEN Output
