How to convert period CV to pitch CV

[Tim Walters]

At 5:11 PM 12/19/96, Mark Smart wrote:
>What is needed is a circuit to perform a 1/x function on the CV (this is
>the part I don't know how to do) and then a linear/exponential converter to
>make it 1 V/octave.
>
>Any suggestions on the 1/x part?

The Analog Devices multiplier chips (AD533, AD534) can also be configured
as dividers [actually, I'm not certain about the 533, you might want to
check the data sheet, which you can download from their web site].  So you
could put a constant voltage on the numerator side and the CV on the
denominator.

The 533 is considerably cheaper but requires trimming; the 534 is pre-trimmed.


-----------------------------
"This is digitally conceived New-Pagan vomit.  And I've never tasted vomit
this good." --yet another review of my CD, this time in _Sonar Map_

Tim Walters  --  walters at digidesign.com  --  http://www.slip.net/~coredump