[note] Electret Condenser Microphone

By Peiqi_SU / November 17, 2012 / PCOM / 2 Comments

I may use a electret condenser microphone for my final project. Here is an introduction from what I learned today.

Below is a typical electret microphone preamp circuit. The resistor (I use 10k) sets the gain and output impedance. The audio signal appears at the output, after a DC-blocking capacitor.

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