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Original question:

[FAQ] PCM9211: Simultaneous conversion of S/PDIF to I2S AND Analog line-in to I2S audio streams

PCM9211: Audio forum

shin chol choi
Intellectual 370 points
Part Number: PCM9211


Hi

I don't want to use mux switch.

It has two input spdif and BT module i2s. No two inputs come in at the same time.


Can the main  output and MPIO_B outputs be tied together with high impedance?

  • 0
    TI__Mastermind 23050 points

    Hi Shin,

    I'm not sure if I have understood correctly, but why not just change between DIR and AUXIN1 routing to the main output port? You can't have two devices actively driving the same lines so you are going to have to do some programming of the device to switch the input source, and this is better done through the Main Output port MUX.

    Best,

    Zak