Doepfer

hello dieter,
...too confusing...
please, if you want a poll about the analogue shift
register module, tell me in detail how this poll
should be.
then i assume, i'll have to delete the current poll
about the same module, right?
regards,
bakis.







--- Dieter Doepfer <hardware@doepfer.de> wrote:

> > the analog shift register module is some sort of
> > a sample&hold module, but with more than one
> stage.
> > like a s&h module, it has a signal input and a
> clock
> > input, but a separate output for each stage.
> > on the first clock pulse, the first stage (or
> cell)
> > is filled with the value present at the signal
> input.
> > on the next clock pulse the second stage is
> filled,
> > then the third and so on ...  when all stages are
> filled
> > and the next clock pulse arrives, the module
> starts
> > filling the first stage again and so on.
> >
> > best wishes
> >
> > ingo
> 
> But that's exactly the function of the T&H section
> of the A-152 ...
> 
> I think it's a bit more complicated and I'd agree to
> Florian's description
> with some corrections:
> 
> If I'm not mistaken 8 S&H's and switches are
> required for a 4 stage analog
> shift register (similar to the BBDs) as you need a n
> additional slave S&H
> for each stage. This is required to have the
> analogue value available to
> forward it to the following stage as the preceeding
> S&H already is
> "reloaded" from the stage before. A bit confusing
> but I think I'm right.
> 
> The principle of the analog shift register would be
> this:
> 
> 
> MSH1 -> SW11 -> SSH1 -> SW12 -> MSH2 -> SW21 -> SSH2
> -> SW22 -> MSH3 ... and
> so on
> 
> with
> MSH = main S&H of the stage
> SSH = slave S&H of the stage
> SWxy = switch
> 
> The switches SWx1 and SWx2 have to be triggered with
> opposite phase: all
> switches SWx1 are triggered simultaneously at the
> falling edge of the clock
> signal to pass on the voltage of the main S&H (MSH)
> to the slave S&H (SSH).
> All switches SWx2 are triggered simultaneously at
> the rising edge of the
> clock signal to pass on the voltage of the
> preceeding slave S&H to the next
> main S&H.
> 
> How about a poll for such a module. Sounds
> interesting.
> 
> Best wishes
> Dieter Doepfer
> 
> 
> 


Bakis Siros
Parallel Worlds / Polariton
Athens-Greece
[Doepfer_a100] group owner
http://www.shimarecords.co.uk
http://www.ward12.com


		
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