[sdiy] Filter problem

[Sowa Roman]

Ha! 3-pole state variable. Interesting.

Have you considered using small NTC in series with control
node of SSM, i.e. pins 3,6,11 to slightly improve temperature
response?

I leave pin 1 of SSM open, i.e. R14='a lot'. According to one of
datasheet graphs it has some parameter better with R14=1M.
Can't remember if it was gain matching versus control voltage
or something like that.

Roman

__-----Original Message-----
__From: Neil Johnson [mailto:nej22 at hermes.cam.ac.uk]
__Sent: Wednesday, July 10, 2002 11:57 PM
__To: Ian Fritz
__Cc: synth-diy
__Subject: Re: [sdiy] Filter problem
__
__
__Ian,
__
__> I haven't seen your design.
__
__A draft schematic is up on the MSM page.  Comments welcome.
__
__Neil
__
__--
__Neil Johnson :: Computer Laboratory :: University of Cambridge ::
__http://www.njohnson.co.uk          http://www.cl.cam.ac.uk/~nej22
__----  IEE Cambridge Branch: http://www.iee-cambridge.org.uk  ----
__
__
__
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