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Joined: 12/13/2016(UTC) Posts: 30  Location: PA Thanks: 2 times
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I'm supplying 5.25VDC to the Vd pin of the output header of my Cronus, and I see approximately 5V master clock signal output (very nicely shaped). My question: is the 5V master clock signal normal (I sort of expected that the output buffers will be fed from a local 3.3V regulator, and expected a 3V signal) or the regulator feeding the output buffers is not doing its job and my board is going to die at any moment now? Thank you. Andrey Edit: A strange thing has happened: I didn't change anything, but at some point it went to the expected 3.2V (and the rise time went from 3 ns to about 5 ns)... The waveform is about the same. Strange, but I can live with that. Edited by user Wednesday, March 29, 2017 2:14:53 AM(UTC)
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~3.2V is normal - 5V would never be normal - it would mean that the VREG was not regulating or shorted etc..
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 1 user thanked Russ White for this useful post.
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