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about PCM9211

user5907410
Prodigy 20 points
Other Parts Discussed in Thread: PCM9211, SRC4392

HI,

      Now i use the pcm9211, I want that  SPDIF IN(RXIN0) and Mainoutput out,. Can whether the SPDIF is 44.1k or 48k, 96k. the mainoutput out LRCK always 96K?how to 

config it?

thanks!

  • 0
    TI__Guru**** 189401 points

    Hi, Ryan,

    Welcome to e2e and thanks for your interest in our products. 

    I apologize, but I don't quite follow your question. Can you try explaining it a different way so I can understand what you are looking for?

    d2

  • 0 in reply to Don Dapkus
    TI__Expert 5555 points

    Ryan,

    it sounds like your talking about maintaining 96kHz output from the Main Output, even though the input may change between 44.1kHz, 48kHz and 96kHz.

    This functionality would require a sample rate converter (SRC), a sample rate converter interpolates samples between your incoming data rate and your desired output rate.

    The PCM9211 does not contain an integrated sample rate converter. You would need an external SRC to reclock and interpolate the output of the S/PDIF receiver to your desired rate.

    The SRC4392 integrated an SRC and S/PDIF receiver, but sadly lacks an integrated ADC.

    Your other alternative is to use an SRC41xx device after the PCM9211.

    Thanks again

    Dafydd Roche

  • 0 in reply to Dafydd Roche
    Prodigy 20 points

    Thank you for your reply,  i get it.   thanks