0.5V at microphone

Andy Green andy at openmoko.com
Fri Feb 15 13:03:31 CET 2008


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Hi folks -

Probing around suspiciously I find 0.5V is seen at one side the
microphone in suspend and nothing at the other.

Maybe this is caused by the AMP power you already fixed?  But I couldn't
see the path for that.

The off resistance of the microphone to 0V is 900R, if we see 0.5V
dropped it means 550uA, at 0.5V it means 225uW here.

Maybe you can post the patch to disable AMP power in suspend and I can
try again.

- -Andy
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