WEBENCH® Tools/DIR9001: brief noise occur when stop or start playing music.

Prodigy 30 points

Replies: 4

Views: 104

Part Number: DIR9001

Tool/software: WEBENCH® Design Tools

Hi support,

I use dir9001 and pcm1794 and tpa6120 on my board and it seems all ok, but a brief noise will appear when start or stop playing,

If use oscilloscope to abserve the pin 27(error) of dir9001, will find the level will be high to low or low to high respectively.

I allready try to connect the pin 27 of dir9001 or pin 13 of pcm1794 to the mute pin 10 of pcm 1794, to aviod this noise , but no effect.

could you please give to me some advice for this issue. thanks a lot!

4 Replies