Connecting digital output to a PNP-compatible device
Output state
Output switch state
Input state
ON
Sinking current
Not energized
OFF
Relaxing
Pull up (energized)
Figure 23: connecting digital output to a PNP-compatible device
Pull up resistor can be calculated as follows:
R
=
V
PSU
−
V
input
I
input
,
where:
V
PSU
is power supply voltage. Must be higher than required input amplitude,
V
input is required input amplitude,
I
input is input driving current (corresponding to input amplitude).
Remember to use the appropriate resistor power rating:
P
(
R
)
>
(
V
PSU
−
V
output
)
×
I
input
XIMEA Technical Manual, Version: v230927
34
