[sdiy] HM2040 IC's

[George Hearn]

> the VCADSR, is it full analog or is it CPU based, and is it designed to be
a
> close replacement of anything like the SSM2056 or CEM3312?

Full Analogue.  It can be used very much like the CEM3312 or SSM2050 etc.
The design is quite different to many other VCADSR's schematics available on
the web and gets very good performance in terms of offset and CV feed
through.  The only caveat is that for best performance a capacitor with high
insulation resistance and low dielectric absorption needs to be used for the
timing cap.  Most film or ceramic NPOs (ideal) can be used.  George

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