AnsweredAssumed Answered

ADAU1701 is influenced by 4G signal

Question asked by henry-tang on Jul 21, 2017
Latest reply on Jul 28, 2017 by TylerK

Hi ADI Expert,


One customer found ADAU1701 will be influenced and hear noise when there's mobile phone using 4G internet to download streaming music nearby.


And it has same phenomenon can be reproduced using ADAU1701 evaluation board. 


We do some experiments :

1. Add shielding 

2. Add 10pF NPO cap at ADAU1701's power pin.



Noise is reduced after add shielding but we still can hear it, do you have any suggestions how to avoid it?


Thanks very much!