ahgu
Full Member level 3

When I remove the microphone completely, I measure the noise at the input terminal of the OPAMP, the measurement is 1mv. And when the mic is on, it only adds 2-3 mV , therefore the noise is big for my circuit. I hear a lot of static.
How can I design the mic amp to have higher SNR? how many stage do I need?
I guess I need a good power regulator also.
thanks
Ahgu
How can I design the mic amp to have higher SNR? how many stage do I need?
I guess I need a good power regulator also.
thanks
Ahgu