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2.6.3.3 Global Shutter External/Software Triggering
In this section, both External and Software Trigger are described in the same diagram as the acquisition
sequence is the same. The trigger event can either from the EXT input or sent via software. While waiting on
the trigger event, the sensor is put into a “pre-scan read out cycle”. On detection of the trigger, the Global Clear
line is pulsed to clear the charge from the sensor. The exposure period then starts and lasts for the user defined
exposure time. The reference frame is read out during the exposure such that the end of the reference read out
is coincident with the end of the exposure. The Charge Transfer pulse then goes HIGH to transfer charge from
all pixels in the sensor. Finally, the signal frame is then read. The camera then returns to the “pre-scan read out
cycle” awaiting for the next trigger.
Figure 29: Global Shutter External/Software Triggering (Non Overlap Mode)
Summary of Contents for Zyla sCMOS 4.2 PLUS
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