[sdiy] CV dispatcher : analog or digital ?

[patchell]

    I am using a circuit I took right out of the analog devices
non-linear handbook.

    You will find the circuit, somewhere, in this schematic
http://www.silcom.com/~patchell/smb1/smb.pdf.  Each function fitter uses
2 quad opamps and 1/2 of an OTA.


jbv wrote:

> Dear [sdiy] list,
>
> Here's a problem I've had in mind for a while.
> The project could be called "CV dispatcher" and follows
> the rules described in the following schemo :
>
>     http://perso.wanadoo.fr/jbv.silences/DIY/CV.jpg
>
> In brief : there's 1 CV input and several CV outputs.
> A "peak" of 0v to 1v (and back to 0v) appears on one of
> the outputs according to the interval (1 to 2v, 2 to 3v, etc.)
> of the CV input.
>
> I can do that with a simple ADC -> uC -> DAC -> S&H.
> But I was wondering how this could be done the analog way...
> Lots of op-amps I guess...
>
> Which version would be the easiest (in terms of design,
> number of components, cost, PCB room...) ?
>
> Thanks.
>
> jbv

--
 -Jim
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