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PCM4222

tom cryan
Prodigy 10 points
Other Parts Discussed in Thread: PCM4222

Hi I am using the PCM4222  TDM slave mode and the is a one BCK period delay on the data, the FMT1 and FMT0 are set correct( if you set them both Hi you get another delay). In master mode the data is correct - no delay. The data is also correct in double speed mode (slave) - no delay.

I need a solution to transmit the data in slave mode at normal speed sampling mode with no delay

Thanks

Tom

  • 0
    TI__Guru 57800 points

    Hi, Tom,

    Welcome to E2E, Thanks for your interest in our products!.

    Thanks for your post, my colleague expert in this device has been notified and will provide his comments in the next couple of days. 

    Best Regards,

      -Diego Meléndez López
       Audio Applications Engineer

  • 0 in reply to Diego Melendez
    TI__Mastermind 27850 points
    Hi Tom,

    Are you able to get a capture of all 3 clock lines and the data? Are you using a processor that outputs a 1 bit pulse or a 50% duty cycle LRCK? Since the issue does not happen in master mode, only slave mode, it might be due to a synchronization issue with the clocks. Could you explain more about the clock source when the PCM4222 is in slave mode?

    Justin