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Original question:

TAS2560: noise of TAS2560

TAS2560: TAS2560 noise issue

Jimmy Lai
Expert 6845 points
Part Number: TAS2560

Dear Team,

Thanks for your great support!

https://e2e.ti.com/support/audio-group/audio/f/audio-forum/1118623/tas2560-noise-of-tas2560/4169425#4169425

At present, after playback, I mute all PWR_CTRL_1(0x07) and set the device power down, there will still be noise 

Do you have any recommend on this?

Many Thanks,

Jimmy

  • 0
    TI__Guru** 102355 points

    HI Jimmy,

    What value are you writing to register 0x07? Are you setting bits 7-6 to 00?
    If the device is powered down, there should be no PWM at the output of the amplifier, can you confirm that?
    If there is noise with device powered down, then noise should be coming from some other source. If you're using the same schematic as the one from the linked e2e thread, can you try by removing F3108 and F3109 and check again for the noise, this should completely isolate the amplifier from the output.

    Best regards,
    -Ivan Salazar
    Applications Engineer