[sdiy] Electret microphone

Bert Schiettecatte bert at percussa.com
Mon Aug 15 10:41:49 CEST 2005


Hi All,

I'm trying to find a good, simple, reliable electret microphone
amplifier circuit. The microphone I have here is 

http://rocky.digikey.com/WebLib/Horn/WEB%20DATA/EM6050P-44.PDF

I have a 3.3V supply and I need to get the signal into the range of my
ADC (which works between GND and 3.3V). I have been looking around for
circuits but there are so many and the only circuit I've prototyped up
to now is based on the LM386 (which only works from 4V and up). 

Thanks for helping!
Bert




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