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Silly question on DAC resolution

Hanns
Expert 1005 points
Ive been successfully using the tas57xx evm boards with i2s input for some time now. My question is, what is the DAC resolution on these boards? I cant seem to find this info in the datasheets. Thank you!
  • 0
    Expert 1335 points

    Hi Hans

    From what I know about these devices the I2S data is converted into a PWM signal directly which is effectively the D/A conversion process. The DAC resolution will be the resolution of the PWM. If there is no truncation of the I2S data then the PWM signal will be able to represent every data bit of the data  being pumped in. So the DAC resolution will be the no of data bits in the packet. Do you think this explains your question?

    BR

    Manjula

  • 0 in reply to Manjula Ellepola
    Expert 1005 points

    Hello Manjula

    That was pretty much what I was hoping to hear and yes, that answers my question perfectly well.

    Might one perhaps even say that the combination speaker and human ear do the final DAC of the PWM signal?

    Thank you for your reply.

    Hanns