[sdiy] CCD321 Analog Shift Register

[Thomas Laskowski]

Hello,

For 1000 stages, wouldnt that only allow for 0.1 second of delay at 10khz
not 1 second?

If so, then it it way too expensive. 

Thomas

On Wed, 22 Aug 2001, Atom 'Smasher' wrote:

> expensive.... i once picked up an MXR analog delay for less than that.
> (and a few DOD analog delays for ~WAY~ less)
> 
> anyway, i'm not sure if my math is right....
> 
> dual 455 stage = 910 stages  (?)
> (we can round this to 1000 stages?)
> 
> so, 1000 stages @ 10KHz clock = 1.0sec delay ???
> 		@ 20KHz clock = 0.5sec delay ???
> 		@ 40KHz clock = 0.25sec dealy ???
> 
> what determines the max (usable) frequency?
> 
> also, a quick search of http://www.fairchildsemi.com/ dosen't come up with
> anything for that part number.... that's not encouraging.
> 
> 
> ============================================================
> > Took a look through a 1985 Fairchild CCD Imaging databook and saw this:
> > the CCD321 - a dual 455-stage analog shift register in a 16-pin ceramic
> > package - one version is intended for audio use. Requires 3 clocks, and
> > sample rate is spec'd for 10 KHz to 20 MHz. This chip is still in
> > production, and may be obtained from www.fairchildimaging.com at 120
> > dollars US a pop. Anyone ever try one of these for audio?
> 
> 
> 	...atom
> 
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