🚀 go-pugleaf

In article <578F02gn10.z01@JUTS.ccc.amdahl.com> kls30@DUTS.ccc.amdahl.com
writes:
>Does anyone know who makes good quality VCAs (voltage controled amps).
>I'd like to do a few things with and equalizer.
>
>Basically I plan to take an off-the-shelf 16 band equalizer with seperate
>adjustments for frequency for left and right and make a daughter board to
>convert it into a vocorder.

In this case where the absolute sonic purity isn't at stake...:-)  I 
would suggest the PMI SSM-2122.  It has two pretty good VCA's in a 16
pin package.  You will have to take into account the law of operation
for the control of the VCA's.

Also take a look at the National semi LMC835.  It is a digitally
controlled equalizer.  It is a "dual 7 band" but the sections can be
cascaded for 14 bands.  The only draw back is that the part is a
digital step attenuator.  It steps in 1 dB increments.  If you make a
large change in the setting you will get zipper noise.

This usually isn't a problem unless you do it with no signal to mask
the zips.

-- 
Chris Christensen                  The opinions I express are my own,
chrisc@gold.gvg.tek.com            and sometimes they are wrong!
916-478-3419 FAX 916-478-3887      After all, I AM only human.