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TPA3255: TPA3255 POP noise

Kailyn Chen
Genius 9560 points
Other Parts Discussed in Thread: TPA3255

Dear,

How to avoide the POP noise of TPA3255 because  TPA3255 have no Mute/SD PIN. Our customer is going to use TPA3255 for his new design and found that it has no standby/mute pin. Could you provide some advice? Thank you very much.

Best regards

Kailyn

  • 0
    TI__Mastermind 19080 points

    Hi Kailyn,

    For the start-up, it has a Cstart pin functioning as a soft-start pin to keep balance between the OUTP/N to avoid pop noise.

    For power down, it is recommended to hold RESET# pin logic low, and then a controlled ramp down sequence would be executed to avoid the audible noise.

    Regards,

    Hao