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LMV1012: when work with MIC, there is a lot of ground noise.

Part Number: LMV1012

Dear TIs,

when we use LMV1012-15 as a MIC signal amplifier as attachment? it come out a big groud noise, could you kindly help to tell us why? how to aviod this issue?

thanks a lot!Click here to play this audio clipClick here to play this audio clip