AnsweredAssumed Answered

Voice Noise can be heard when using ADAU1961

Question asked by henry-tang on Oct 31, 2017
Latest reply on Nov 1, 2017 by DaveThib

Hi ADI Expert,


When I use Micphone and ADAU1961 to record voice, I found there's noise can be recorded as attachment (test1.wav).

Even I disconnect micphone and ADAU1961, the noise is still there and can be record and heard.

This noise will become smaller if I changed change cap at LINP/LINN from 0.1uF to 10uF as datasheet reference schematic.


I would like to ask whether there's any thing I can change to minimize this noise? thanks very much!