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LM49352: I2S audio interface with more 32 bit clocks per sample

Marc Smaak
Prodigy 20 points

Part Number: LM49352

We want to use this codec in 16 & 24 bit data width mode using I2S interfacing

The device will be I2S slave for both Tx and Rx directions.

Our I2S master always generates 32 bit clocks per sample (64 for stereo) even if using only 24 or 16 bits data width. Would the device know how to handle this or does it always need an equal number of bit clocks compared to the data width. 

  • 0
    TI__Guru 64125 points

    Hello,

    The device will be expecting the number of BCLK pulses based on the data formatting selected and the datasheet does not make mention of a 32-bit mode of operation.

    There was another thread on the forum from a few years back which seemed to indicate this worked so if you're willing to try it out and report back we can continue to support you from there.

  • 0 in reply to Collin Wells
    Prodigy 20 points

    Hi Collin, Thanks for your fast reply. We will test if it works and report back. Just wanted to know on forehand since our design is also new ;-)