[sdiy] PLL-controlled VCO

[Andrew Wyld]

Hi there,

I am wondering if it is possible to use an arbitrarily weird VCO in a PLL.
Basically I want to use a square wave from a computer (specifically a
horribly cannibalized Commodore 64) to drive an analogue VCO, making a
drift-free synth that can be sequenced and controlled completely from the
computer console, but still sounds like an analogue synth.

I'm figuring I can do this if I do some kind of horrible gating operation on
the VCO.  What would people suggest I read up on / look up on the net / etc?

Thanks!

Andrew Wyld

postmaster at ripe-fruit.co.uk
http://www.ripe-fruit.co.uk/

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