ADAU1966A I2S Multiplexing


        I have a special need now .

        I need to make a multi-channel audio product .

        I want to know how many analog audio channels can I output if I input one channel  I2S to adau1966a. (for example ,DSDATA1 input)

        Because I want to get multichannel audio, but I don't know what to do now,

        (1)  The first way is to turn all the I2S into multi-channel, but I don't know how to do it. 

        (2)  The second  Looking for a DAC with single I2S and multiple analog audio 

        I want to be able to control the on-off operation of each path independently.

        Could the experts of ADI please give me a good proposal?   I would appreciate it if you could help me.


No Data
  • Hello terryyuan,

    Yes, you certainly can distribute the I2S as shown. 

    It is usually not a good idea to add capacitance to ground on the clock and data lines. C168, C169... can cause some issues with the waveform and the rise times. So I would not stuff those capacitors unless you find you need them.

    I like having individual control of each output from within the DSP but if using only two channels of output and splitting them to go to all 16 outputs works for your application then I guess it is fine. It is your choice. 

    Dave T.


No Data