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SSM2529 noise issue

Question asked by TrezTan on Nov 27, 2016
Latest reply on Dec 5, 2016 by Rajeev

Hello,

 

I am working with SSM2529 but I had some problems.

 

1. When I play audio file sine (1khz_44100_mono_30s.wav) to test. After that I'm using OSCILOSCOPE to view on OUPUT pin (OUTP + OUTN) of SM2529. It's not sine wave, I see square wave (rising1111ws450.png).

 

2. When I adjust volume louder (maximum) then speaker is quite noise.

I also attach audio file and wave form which I capture from OSC.

I attach SSM2529 schematic connection. As for the load, I'm using speaker (8ohm, 2W).

 

Thank you

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