Camera Operation
Falcon 4 Camera User's Manual
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GPIO [2 : 1]. General purpose inputs are isolated by an opto-coupler input with a time
programmable debounce circuit.
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Software trigger: An exposure trigger is sent as a control command via the command
channel. Software triggers cannot be considered time accurate due to communications
latency and sequential command jitter.
Internal Frame Rate
The frame rate is dependent on the number of rows in read, and the summing mode. Frame rate
takes priority over exposure time. Maximum exposure time can be increased by lowering frame
rate.
I/O Block Diagram
The following diagram describes the Input / Output features of the camera and how they are
related.
Figure 13 I/O Module Block Diagram
Opto-Coupled Inputs
The camera provides two sets of opto-isolated input signals. These can be used as external trigger
sources. The signals should be in range from 2.4 V to 24 V, 5 V typical. See lineDetectionLevel
feature.
The delay between signals at the I/O pin and the internal timing core is a function of the signal
swing and the typical latency @ 5V swing is 3.5 µs.
Preliminary
