I'm working on a black-box piece of electronics which has a cylindrical "condenser microphone" with a main body diameter of 4 mm and height of 1.5 mm
I want to replace the condenser mic (black box) with a MEMS mic without redesigning the board.
Does anyone have a guess for the mic impedance (capacitive for a condenser mic) and/or volume-to-voltage-curve of similarly sized components? Any way to verify this with just a multimeter?
Is there any MEMS mic of good quality that has a form factor that could be a drop-in replacement for a cylindrical mic that's 4 mm diameter x 1.5 mm height, plus pins? I imagine the MEMS mic would thus either need to be passive (unlike most MEMS mics which are powered), or would need to have a jumper wire go to it from a power rail.
Thanks! Beginner here working on a black box system so I hope I'm asking the right questions.