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PCM1792: PCM1792 issue

user4943688
Prodigy 10 points
Part Number: PCM1792

hello，Now I use the PCM1792 meet some questions as follows，could you help to give some suggestion how to solve it

1, I use the PCM1792 as decoding. PCM1792 front-end signal is MP3, wav format audio decoder chip.
2, I use the MCU to send the signal to control PCM1792 mute.
3, the front of the song or the next song, PCM1792 will send a shock sound，How to solve this Sound？

  • 0
    TI__Mastermind 46290 points
    Hello,

    The primary Applications Engineer for this device is currently out of office, returning tomorrow. One of us should be able to reply to your query tomorrow or at least provide an update for an estimated answer given the proximity to the US Thanksgiving Holidays by that time.

    Thank you for your patience.
  • 0 in reply to Kevin Duke
    TI__Guru 53373 points
    Hi,

    Thanks for using the e2e forums! Does changes the attenuation rate selection improve the pop noise? slowing the rate of the mute functionality by changing the ATS field of register 19 to LRCK/8. In addition, it may be useful to capture the mute/unmute event with an oscilloscope. Perhaps you have a digital crosstalk issue feeding into the supplies or output pins.

    Let me know if that fixes your issue.

    Thanks!
    Paul