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Pop Noise when Power Up ADAU1772

Question asked by henry-tang on Jan 18, 2017
Latest reply on Feb 2, 2017 by henry-tang

Dear ADI support Team,

 

I found there's pop noise when I power on ADAU1772's evaluation board.

 

According to datasheet, it specify that we have to be sure to mute the outputs to avoid any pops when the IC is powered down or change register.

 

However, it can't be muted before power up and the pop noise I heard shows up when power up this evaluation board.

 

Is there any way to prevent this power up pop noise? Thanks!

 

Henry Tang

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