evertz 7814UDX-4K Series, Руководство пользователя

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7814UDX-4K Series
HD/3G/UHD Up/Down/Cross Converters
Revision 1.2
Page - 9
When a particular GPIO is configured to be a GPI, the following interface shall apply (Figure 2-2):
GPI
GND
GPI
Command
to
internal
circuit
3.6 K
+ 5
VDC
Figure 2-2 : GPI Input Circuitry
When a particular GPIO is configured to be a GPO, the interface shown below shall apply. The GPO is
active low with internal pull up (10k Ohm) resistors to +5V. When the output goes low, it is able to sink up
to 10mA. When high, the signal will go high (+5V).
Do not draw more than 100
µ
A from the output.
Figure 2-3 shows the circuit for the general-purpose output.
From Internal
Circuit
+ 5 Volts
GND
GPO
10 ohm
10 K
Figure 2-3 : GPO Output Circuitry