This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

  • TI Thinks Resolved

TPA3245: POP noise

Expert 3530 points

Replies: 1

Views: 119

Part Number: TPA3245

Hi team,

When customers use TPA3245, they find that the power amplifier will output POP noise when control 18pin (RESET) is low level.

Now the situation is that when the system works normally, it just controls RESET pin and sets RESET pin high or low. When set low, the sound of POP will appear; when set high, the sound of POP will be lower than when set low.

Any suggestion will be appreciated.The schematic is attached:3245AMP.pdf

Best Regards,
Amy

Best Regards,
Amy Luo

  • Hi Amy,

    I need understand what stage causes the pop noise. May you try to short TP18 and TP17 to see if the pop noise still show up?  If yes, then that is TPA3245 prblem. If not, that is other stage's prblem.

    Dylan

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.