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Original question:

TPA3123D2: About the delay of the mute pin

TPA3123D2: there is a problem with the demo board output of tpa3123d2

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Intellectual 2245 points
Part Number: TPA3123D2

Hi team

MPN;TPA3123dD2 

 Detailed description: when Ti demo board is used for debugging, there are several problems:

1.24v power supply and 4 Ω load. When the output power reaches more than 20W, the output will have the same sound source as the input source (the connected cement resistance is not a speaker), and those below 20W are normal;

2. The same frequency sound as the input source will appear when no-load, and it will be found that the smaller the gain is, the smaller the sound will be; The question now is, do you know where the sound comes from?

Best Regards,
William