[sdiy] digital delay, was ...

[jhaible at debitel.net]

> Can anyone say WHY BBDs are so noisy. It must be the physics of the chip,
> right? But why would a string of capacitors be inherently noisy? Perhaps an
> understanding of the mechanism would suggest something new.

The charge must be transfered from stage to stage.
I guess it's just the noise that's adding up from
one stage to the next.

I cannot think of *any* active circuit that wouldn't create
considerable noise if you run your signal thru a chain
of 4000 of them ...

JH.

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