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Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it.

Re: a decent paper indeed

Oh, certainly not by default indeed. Prior to reading that
article I had assumed that all upsamplers would be high-order
filters, i.e. conceptually identical to oversampling filters.

The paper opens the possibility that at least some upsamplers
have a slower roll-off, and the following track about this
helping spread out DNL is an interesting one.

But it still doesn't offer a plausible mechanism for delta-sigma
DACs. And neither does it for dCS's RingDAC, which is by itself
a cluster of statistically-averaging current sources and hence
should need no other tricks to reduce its DNL below thermal
noise effects.

TNT Audio Netzine



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