PHD User Guide
25
7.5.1.
Video input capabilities
The following table provides specifications for the video inputs.
Video Input Specifications
Parameters
Min
Nom
Max
Unit
Input voltage range
-5.6
5.6
V
Input resistance
75
Ω
Capacitance at pin
65
100
pF
7.6. Real Time Clock
The Standard PHD70 (not the reduced memory version) supports a Real Time Clock (RTC).
The RTC values can be set and read using the corresponding API calls outlined in the PHD API Manual.
The RTC values are maintained during power down by a super-capacitor mounted in the PHD70.
The following table provides specifications for the RTC.
Real Time Clock Specifications
Parameters
Min
Nom
Max
Unit
Setting retention time
32
81
Hrs