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PCM1754: Left justified format at certain frequency

Prodigy 440 points

Replies: 3

Views: 75

Part Number: PCM1754

Hello team,

I would like to ask a question about an audio DAC.

My customer are wondering if PCM1754 can function properly in left justified format under the following conditions:

  • AK4352: 18bit Left justified
  • LRCLK: 44.1KHz Sampling frequency
  • MCLK: 11.2896MHz
  • BCLK: 2.8224MHz

Looking at page 15 of the datasheet, it seems to be fine. It would be helpful if you could check if it works properly.

I am looking forward to hearing from you.

Best Regards,
Ryotaro Fukui

  • Hi Fukui-san,

    The PCM1754 only supports two audio formats:

    The PCM1754 only has a single FMT pin to configure the device, so it cannot support the left-justified format.

    The PCM1753 features an SPI interface that allows the device to be configured and supports more formats, including left-justified.

    You could consider using the PCM1753 and just leaving the device in the default configuration, in which case you could use LJ mode.

    Thanks,

    Paul

  • In reply to Paul_Frost:

    Hello Paul-san,

    Thank you all for the quick response. The customer was satisfied with the answer, and decided to use the PCM1753.

    The question is now closed. Thank you all for your help.

    Best Regards,
    Ryotaro Fukui

  • In reply to Ryotaro Fukui:

    PCM1753 사용 시 Clock Polarity, Clock Phase는 어떻게 설정해야 합니까?