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TAS5825M: power on and no audio

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Prodigy 30 points
Part Number: TAS5825M


hi  team 

We encountered a problem before that there was no audio output after 6% power amplifier was powered on. Some colleagues suggested changing the capacitance of the 7th pin to 2.2uF, and then we could solve the problem. Is there any such solution?

  • 0
    TI__Mastermind 20541 points

    Hi

    thank you for your question.

    "after 6% power amplifier was powered on"

    do you mean 6% power amplifier will have no sound after power on?

    how many pcs amplifier you confirmed?

    we usually use 1uF at pin7. changing 2.2uf can solve your problem, can you tell me the rated voltage of the capacitor you use?

    is that possible the actual capacitance decreased during start up?

    about no audio during power up, we have encounter some other root cause.

    that is because the inductor used by LC filter has too small saturation current and rated current so that the OC been triggered.

    can you help confirm the ox68, 70, 71, 72, 73 registers to confirm what error happened during start up?

    thanks.

    jess