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TLV320AIC3204: RF noise reduction on ADC and CMRR

Part Number: TLV320AIC3204


Hello Audio team,

We are using the TLV320AIC3204 in a microphone application. We have noticed quite some RF noise on the PGA input. We tried a differential mic on the diff. input but we still get quite some noise.

We measured a CMRR of ~42dB can you confirm this?

Do you have other ways to reduce RF noise while using this device?

Thank you and best regards,

Ambroise