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DIX4192: Reference clock

John Scott94
Prodigy 20 points
Part Number: DIX4192

Hi,

If the DIR reference clock is 24.576 MHz, will the DIR be able to lock onto AES3 input signals that are either 48 Khz or 44.1 Khz? Will it lock to any AES3 signal between 20 Khz and 216 KHz?

Thanks,

John

  • 0
    TI__Guru 57800 points

    Hi, John,

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

    I think the device should operate as expected under the described conditions, I have notified my colleague so he can provide more information about this. He will contact you back after July 4th Holiday.

    Best Regards,

      -Diego Meléndez López
       Audio Applications Engineer

  • 0 in reply to John Scott94
    TI__Expert 5645 points
    Hi John,
    Sorry for the delayed response.

    The DIR reference clock may be any common audio system clock rate, such as 11.2896 MHz, 12.288 MHz, 22.5792 MHz, or
    24.576 MHz. In addition to the MCLK and RXCKI clock sources, the DIR core recovers a master clock from the AES3-
    encoded input data stream. This clock is suitable for use as a master or system clock source in many applications. The recovered master clock output, RXCKO (pin 12), may be used as the master or reference clock source for the audio serial ports and the DIT, as well as external audio devices.

    DIR should lock to any AES3 signals between 20 to 216kHz. Thanks.