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PCM1862 clock issue

Patrick Chen
Mastermind 8875 points

Hello,

         If customer would like to support 48KHz and 44.1KHz, what is better to use between 12.288MHz osc or 24.576MHz to more stable? Thank you.

BR

Patrick 

  • 0
    TI__Mastermind 28120 points
    Hi Patrick,

    The XTAL input actually has limits of 15 MHz to 35 MHz. So I would recommend a 24.576 MHz osc, if it is going into the XTAL input. Since outputting a 44.1 kHz sampling rate, or multiple of 44.1 kHz, you will need to use the PLL and will be able to do so with either a 12.288 MHz source, or a 24.576 MHz source.

    Justin