In my keenness to work with this microphone, I overlooked one major parameter - that it is meant to run at 1.8V max. I was reading data from the device and had tested it for several hours before I realised my mistake. (I was very happy with the performance of the mic to that point). I thought I might as well continue testing with the over-voltaged part ( I didn't want to waste my soldering efforts, see picture) and I wrote the one-wire interface and tested that at 3V too (AAD A mode) - again happy with the results.
My question: is it possible to run this microphone permanently at 3V? It seems to work at that voltage and it is a bit of a hassle to run it at 1.8V when you have LCDs etc. in the hardware mix.
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Hey fellow engineer! Did you end up using it with 3v supply? I'm struggling with getting the right level shifter for 3v3 on ESP32. I wonder if you had any input from TDK. So far all the level shifters I tried were an unfit not being able to translate properly 3.7MHz clock between 3v3 and 1v8.
Let me know where you landed. Thanks.
Best,
Alex.