7i92 PDM and a Spindledriver board that need 5v
- hitchhiker
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02 Aug 2025 12:53 #332665
by hitchhiker
7i92 PDM and a Spindledriver board that need 5v was created by hitchhiker
hi i get a issue...
i have an very old servo driver that needs a 5+ pdm signal about 10khz.
my card i use is a 7i92.. the pdm output is sinking on the 7i92.. correct?
what is the best way to convert it?
thanks
i have an very old servo driver that needs a 5+ pdm signal about 10khz.
my card i use is a 7i92.. the pdm output is sinking on the 7i92.. correct?
what is the best way to convert it?
thanks
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- andypugh
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03 Aug 2025 18:14 #332742
by andypugh
Replied by andypugh on topic 7i92 PDM and a Spindledriver board that need 5v
I think that the 7i92 has bare IO pins, and in output mode I would expect them to be pulled-up to 5V when "on"
I would suggest testing with a multimeter.
I would suggest testing with a multimeter.
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- PCW
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03 Aug 2025 19:48 #332753
by PCW
Replied by PCW on topic 7i92 PDM and a Spindledriver board that need 5v
The 7I92 outputs can be sourcing or sinking depending output polarity
But they are push-pull 3.3V outputs. They will swing to 5V if they have
no load as they have 4.7K pullups to 5V.
But they are push-pull 3.3V outputs. They will swing to 5V if they have
no load as they have 4.7K pullups to 5V.
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