[sdiy] LM13600 VCA

[Sowa Roman]

I like to use SSM2164 too, although I haven't figured out yet
a proper way to thermally compensate them, i.e. the expo part.
Small NTC in series with controll input helps a little, but
it's not perfect at all.
And when I want linear control, I use discrete transistor VCA.
Or LM13700.
I'm only affraid that they will discontinue it saying, that
their amplifiers with digital control (also from SSM2xxx
family) are easier to use. They did that with SSM2044
if I remember correctly.

Roman

""-----Original Message-----
""From: Buck Buchanan [mailto:voltagecontrolled at home.com]
""Sent: Wednesday, January 16, 2002 7:55 PM
""To: synth DIY
""Subject: Re: [sdiy] LM13600 VCA
""
""
""John Blacet wrote
""> The SSM2164 quad VCA might be a bit better in terms of noise and the
""> inputs are expo. You have to do some scaling and inverting 
""for 0-5 or
""> 10V control ranges.
""
""I would second that opinion... Personally, I've found the 2164 to be
""extremely easy to work with and almost "Plug n' Play" good 
""performance.
""
""Only problem is waiting for AD to pull the rug out and discontinue the
""part.  Anyone know if this is in the works for AD?  
""
""Not too sure about the best way to solve the linear control issue with
""the expo controlled 2164...
""
""Buck
""
""
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