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TPA2011D1: Pop sound occurred when audio play ends.

Mark Liao
Prodigy 40 points
Part Number: TPA2011D1


We repeat an audio file by media payer, Pop sound occurred when audio play ends.

How to fix it?

Thank you.

  • 0
    TI__Guru** 111285 points

    Hi Mark,

    What is your audio source? Is the input of TPA2011D1 connected to the analog output from a PC?
    Pop can be caused by impedance mismatch or current transients at the input, perhaps the PC is transitioning the analog output to Hi-Z such that there is a transient at the input of TPA2011D1.
    If there is a sleep signal or similar you may use that to control the EN pin on TPA2011D1.

    Best regards,
    -Ivan Salazar
    Applications Engineer