TDM for 16 audio channels. What's the best way?


We have an application that requires 16 independent bidirectional audio channels, and I'd prefer to do it with as few wires as possible.

I see that the AD1938 can handle up to 8 inputs and 16 outputs in daisy-chain mode so in theory we could do it with four of those,but I read int he data sheet they're set up as two differential stereo inputs, does that mean they can't be used independently?

I know there are other codecs with TDM, so we could potentially do it with 8 stereo codecs, but I'm not sure the topology of that and how we'd wire them up

I'm wondering the best way to go about this.



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