Author Topic: [duplicate, please delete]  (Read 668 times)

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Offline werediverTopic starter

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[duplicate, please delete]
« on: March 25, 2021, 03:26:23 pm »
Sorry for posting a duplicate message (original), the forum said there was an error posting, so I did it again. Oops :palm:

The original text follows.

I think about building a microphone with a (semi-) decent ECM cartridge (maybe AOM-5024L-HD-R) and a preamp-compressor (probably SSM2166 or SSM2167) for use with a computer (a laptop).

Both the ECM and the preamp require power, and I'm not sure a typical computer TRRS socket is designed to supply enough current (the mentioned ECM operates at about 500 uA, while SSM2166 declares 7.5 mA [2.3 mA for SSM2167] consumption). A USB socket must be somewhere nearby, but using it for power only would yield an ugly device.

At this point I'm looking at a simple to use USB audio ADC / codec and virtually the only thing I found so far is TI PCM29xx family of products, most of which are 2 in / 2 out devices, which feels like an overkill.

My main question is:
  • Could you recommend a more minimalistic IC I can use for a single channel microphone?
I'm also a bit concerned about whether SSM2166/SSM2167 will output good quality sound. If you don't think it will and can recommend a better preamp-limiter IC or circuit, I'd appreciate that too.

Thank you for your time.
« Last Edit: March 25, 2021, 03:30:33 pm by werediver »
 


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