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ADAU1761 pops at power down

Question asked by pburkert Employee on Aug 6, 2014
Latest reply on Aug 7, 2014 by JohnTo

Hi,

 

We are dealing with pops and could use some guidance.

 

We currently mute LHPM & RHPM before power-down but we do not change HPMODE bit as suggested in the datasheet. We do not change HPMODE bit because our application always uses headphones and should never need to switch to line output.  However, does switching to HPMODE=0 reduce power-down pops by disabling the headphone circuitry?

 

Thanks,

 

Phil

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