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Forum Post: RE: TLV320AIC3254 Not getting Mic Data through I2S

Hi Don,

We are able to bring-up LINE IN and Mono Jack MIC with the configuration I am attaching in the post. But with this

we are observing lot of noise even when we are not playing anything via LINE-IN or Mono Mic and when we start

playing we get more noise as we increase the volume.

Now need help to reduce the Noise , please provide the configuration we have to use to reduce the noise.

Note:

1. we are using 16Khz , 16bit ,Stereo with MCLK =BCLK=512Khz .

2. Attached excel sheet have the working configuration. We use either Line In or Mono MIC but not both together.(Please visit the site to view this file)


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