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TAS5805M: TAS5805M POP noise

Darren Yang
Expert 2000 points
Part Number: TAS5805M
Other Parts Discussed in Thread: TAS5805

Hi Sir

when the TAS5805M is power ON，it will happen pop noise，could you help provide some suggestions for us to debug it,tks!

  • 0
    TI__Expert 6295 points

    hi, Darren,

     is this happening when do device power on or it is do HIZ-> play setting? please let us know startup sequence and when pop happening?

    Regards

    Linda

  • 0
    TI__Genius 9995 points

    Hi Darren,

    Firstly, please check whether customer follow our power on sequence on page 43 of the datasheet.

    Usually, when TAS5805 is powered on, it would not begin to play before the initialization. After the initialization and sequence is followed, TAS5805 will enter to play mode from Hiz, which should not have obvious pop issue. Please check the sequence and then scope the differential outptu waveform with Ch1 (output_P- output_N) to me for debugging.

    Regards,

    Alix Wan.