Version 1.0 rev 14 Aug 2019
51
Balor
4.10.5
g
lobal
s
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- 100% d
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c
ycle
i
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Global Shutter - 100% Duty Cycle maximizes the frame rate achievable for a given exposure time by starting the next
exposure as soon as the current exposure finishes. This, however, reduces the flexibility of the acquisition sequence as
the exposure time and the cycle time are same. The minimum exposure time is also limited to the time is takes to read
out both the Reference and Signal frames.
In this scenario, the exposure begins by pulsing the Charge Transfer. A signal frame is read out but discarded. The
reference frame is also 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 is pulsed HIGH to transfer charge from all pixels in the sensor, this also starts
the next exposure. The signal frame is then read out.
Figure 22: Global Shutter - 100% Duty Cycle Internal Triggering.
Table 14: Global Shutter - 100% Duty Cycle Internal Triggering Parameters - cycle time dependency on exposure.
Parameter
Minimum
Maximum
Exposure
2 Frame + 27 Rows
3600 s
Cycle Time (1/Frame Rate)
Exposure
Exposure
