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3 x ADAU1761 serial port chain

Question asked by Kuba on Jun 22, 2012
Latest reply on Jun 22, 2012 by Kuba

Hey Guys,

Is it possible to chain 3 x ADAU1761's using the serial port: Output1-Input2, Output2-Input3, Output3-Input1 as shown in the attached block diagram? From info in datasheet I see each serial port supports TDM4 and TDM8, but I'm wondering how this would behave in a chain. Will the second chip act as a multiplexer before passing on the data to the third etc.? I'm hoping that I would be able to access digital AUX1, AUX2 and AUX3 on each DSP core.

Thanks for any input.BLOCKDIAGRAM.png