VRmagic USB Camera, User Manual

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5.4.2 Strobe Output
Passive Strobe Output (potential-free)
The camera switches an external current between Strobe Out + and Strobe Out – us-
ing a potential-free, opto-coupled output transistor. The voltage difference between
Strobe Out + and Strobe Out – must be positive (3...24 V). The output transistor is
capable of switching currents of up to 100 mA. The voltage drop across it will never
fall below 1 V.
Passive Strobe Output
Str
StrobeOut -
3.3V
...24V
1V
drop
Fig. 18: Passive Strobe Output
Active Strobe Output (TTL)
At the active strobe out is a TTL compatible strobe signal referenced to GND. Active
strobe out can sink or source currents of up to 20 mA.
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