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ssm3302 pop click issue

Question asked by LukasDiginn on Nov 22, 2015
Latest reply on Nov 26, 2015 by LukasDiginn

Hello,

 

 

I need help with class d amplifier: ssm3302. I've build a prototype board with this amplifier. Every turning off and on ssm3302 using sdnl and sdnr causes a very bad click effect on speakers.

The audio input is connected with uda1330 dac, output speakers are 4ohm 5W, input voltage 12v.

 

Here is a schematic of audio and power block (please use it only for your reference):

http://www.diginn.pl/ftp/ssm/ssm.zip

Any help and sugestions will be apreciated.

 

Best regards,

Lukasz

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