Switching Capacitor VCO

[Mikko Helin]

>
>I think this may have been covered already, but why is the 4066 being
>used instead of the 4053? Wouldn't the 4053 be a little simpler and
>leave you with a free switch for something else? Same on-resistance...
>
>- Chris

Actually the switch on my schem at http://www.uta.fi/~helin/scvco.gif
is a 4053. There's also no square out which is the Q out on 4013.
What good be done with the free switch on 4053? With two 4053's
you could build three VCO's. If we use SMD's that thing takes
not much space, too. VCO's for polyphonic synths?

-Mikko