mems microphone at 5V

Thread Starter

South

Joined Apr 7, 2017
35
Hi,

I am just wondering if a mems analog microphone can be interfaced with a 5 volt (or higher) supply?

South
 

Ian0

Joined Aug 7, 2020
10,002
Hi,

I am just wondering if a mems analog microphone can be interfaced with a 5 volt (or higher) supply?

South
They are usually 3.3V, but you can use a LDO regulator off 5V. That would have the extra advantage of creating a nice quiet supply for it.
Ones with digital outputs can be interfaced directly to 74HCT running off 5V, and ones with analogue outputs can be capacitively coupled.
 
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