I don't understand. He says the jitter on the digital output is due to the fact it has to reconstruct the clock from the asynchronous data it is being fed. OK, but why does he say the point is moot when using the digital out? Doesn't the digital data stream also get its clock from the same reconstruction. I understand if the data is reclocked by the DAC, the DAC he mentions upsamples so I assume it has to have its own clock, but not all DACs do that.
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