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8
Radiometric measurement
Figure 8.6 Frame synchronization—IWR mode.
8.7.1 Sync In
8.7.1.1 General
The Sync In signal is supplied to the camera by connector 4 in Figure 5.3 Camera back
panel description., page 11. The minimum pulse width is 300 ns.
The Sync In setup is described in section 6.4.7 Synchronizing the camera to an external
signal, page 24.
8.7.1.2 Characteristics
Name
Amplitude
High-state minimum voltage
Low-state maximum voltage
Polarity
Maximum frequency
1
Minimum pulse width
Impedance
Protection
Connector type
1. Some cameras also have a minimum frequency (unspecified). Contact your FLIR representative for more
information.
2. Example: If the detector is working at 100 in full frame, then the maximum frequency will be 100.
8.7.1.3 Chronogram
#T810207; r. AA/43061/43086; en-US
Value
Rising-edge TTL, 0/+5 V
>3.5 V
<0.5 V
User selectable
Maximum frame rate of the camera for a given de-
tector configuration
2
300 ns
User selectable. 50 Ω/10 MΩ
Voltage peaks (500 V/<1 ns)
Overvoltage (15 V)
Reversed polarity
Coaxial BNC jack
41
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