purpose, a STROBE output pulse is generated within the camera. The STROBE output pulse
allows an external strobe light to be turned on during the exposure period. Since the duration of the
exposure is a user-programmable setting, the start-time (relative to the vertical timing of the
camera) and the duration of the STROBE output pulse also vary, depending upon the shutter
setting.
The strobe output pulse is generated to coincide with the exposure period. It is asserted (rising
edge) after the last "charge dump" pulse in each frame. It goes low at the next CCD readout pulse
(see above diagram). The strobe light can be activated at any time during the HIGH duration of the
strobe output pulse.
7.2.3 Reset & Shutter
In some applications, it is necessary to synchronize the camera to an external event. In order to
allow flexibility, two camera RESET methods are provided: TTL and differential.
INPUT 1 –
CC1+ / INPUT 1 +
CAMERA RESET
(INTERNAL SIGNAL)
VRST_INT
(TTL)
+ 5V
(LVDS differential input
from frame grabber board)
VRST_INT (TTL)
INPUT 1 +
CC1- / INPUT 1 –
Figure 7.2-2: Asynchronous Reset
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