[sdiy] Using analog for physical modeling

[Chris Muir]

On Sep 18, 2011, at 12:55 PM, aankrom wrote:

> Quantization & its error aside, BBD's are truly analog. An actual analog voltage is passed through the chain of capacitors at each stage. At no time is the information transformed into 1' & 0's. That's a good enough definition of analog for me.


Well, BBDs are a sampled system, albeit one where the samples are stored in an analog fashion. They have all the same issues as other sampled systems, with the added problems of drooping analog samples. This is veering into a philosophical "what is _true_ analog" discussion, I guess.

– C

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