How to connect MEMS microphone to a LINUX processor

Josef Alt

Other Parts Discussed in Thread: TLV320AIC3254, TLV320AIC3106, TLV320AIC3111, TLV320ADC3140, TLV320AIC3100

My customer needs to connect a MEMS microphone (I2S) to a processor (iMX.8) running LINUX. Can you please suggest a device, ideally Linux driver support is available as well.

Thanks Josef

over 6 years ago

0 Yordan Kovachev over 6 years ago

TI__Guru**** 161600 points

Hi Josef,

iMX.8 devices are not supported on this forum. Typically a microphone would be connected to an audio codec which is connected to the SoC through McASP, (I2S) or McBSP depending on the interfaces supported on each side.

Best Regards,
Yordan

0 Josef Alt over 6 years ago in reply to Yordan Kovachev

TI__Intellectual 1795 points

Hi Yordan,

well I am looking for advise which TI audio codecs we recommend for such application. Ideally it has Linux support. The type of SoC is not relevant for this question. I should not have mentioned it to avoid confusion.

Best Regards

Josef

0 Yordan Kovachev over 6 years ago in reply to Josef Alt

TI__Guru**** 161600 points

Hi Josef.

Sorry for the delayed response. Not sure why this is marked as DSP question. I will notify the audio experts.

Best Regards,
Yordan

0 Steve-Wilson over 6 years ago in reply to Yordan Kovachev

TI__Mastermind 30250 points

Yordan,

There are a few options for codecs with a linux driver.

TLV320AIC3254 (and its derivatives - 3256, 3204,3206, etc...)

TLV320AIC3106 (and its derivatives-3105,3104,3101,etc,,,)

TLV320AIC3111 (and its derivatives - 3110,3120,3100, etc,,)

I've only seen you mention a microphone, not a DAC So if you don't need the DAC or you would like to pair the ADC with a digital input class D amp, the new TLV320ADC3140 would be a great choice

best regards,

-Steve Wilson

0 Josef Alt over 6 years ago in reply to Steve-Wilson

TI__Intellectual 1795 points

Thanks Steve,

actually there is a loudspeaker as well, I had another e2e post. It seems the TMS320AIC3100 ist the best solution for this industrial design.

Thanks

Josef

0 Steve-Wilson over 6 years ago in reply to Josef Alt

TI__Mastermind 30250 points

Josef,

Great, The TLV320AIC3100 is a derivative of the AIC3111 as mentioned above.

best regards,

-Steve Wilson

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How to connect MEMS microphone to a LINUX processor