[sdiy] SSM2164 VCA

[David G. Dixon]

Dave,

Disregard my last email package.  I've decided to redesign the circuit.
Stay tuned.

Cheers,
Dave

David G. Dixon
Professor
Department of Materials Engineering
University of British Columbia
309-6350 Stores Road
Vancouver, B.C. V6T 1Z4
Canada
 
Tel 1-604-822-3679
Fax 1-604-822-3619
 
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> -----Original Message-----
> From: synth-diy-bounces at dropmix.xs4all.nl [mailto:synth-diy-
> bounces at dropmix.xs4all.nl] On Behalf Of David Ingebretsen
> Sent: Monday, March 15, 2010 2:16 AM
> To: 'SDIY DIY'
> Subject: [sdiy] SSM2164 VCA
> 
> I just built a VCA, design by Marc Bareille. Very nice, but already I can
> see I would like to change a couple of things. He based his around a
> SSM2164
> and a linearization method in the July 25, 2002 edition of EDN, page 90,
> http://www.edn.com/contents/images/72502di.pdf
> 
> This tidbit makes it very easy to make a linear or exponential VCA with
> very
> few components.
> 
> Marc's site:
> 
> http://m.bareille.free.fr/modular1/quadvca/quadvca.htm
> 
> 
> I've been looking around at other's VCA designs, but I've yet to see
> another
> one based on the 2164; why? The chip isn't dirt cheap, $6.00 at DigiKey
> for
> a DIP package but certainly not prohibitive. The wiring seems straight
> forward enough even for me to deal with. Marc's design is very straight
> forward, but like I said, I'd like to mix things up a bit.
> 
> Why don't people use the 2164 for VCAs?
> 
> David
> 
> 
> 
> David M. Ingebretsen M.S., M.E.
> Collision Forensics & Engineering, Inc.
> 2469 East Fort Union Blvd. STE 114
> Salt Lake City, UT 84121
> www.CFandE.com
> 
> 801 733-5458 Office
> 801 842-5451 Cell
> 
> dingebre at CFandE.com
> dingebre at 3dphysics.net
> 
> 
> 
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