multiplier filter

terry michaels 104065.2340 at compuserve.com
Sat Apr 10 15:20:46 CEST 1999


Message text written by Paul Perry
>thanx for this terry!

would be more repeatable/accurate than the usual
'unmatched' OTA jobs.

paul perry melbourne australia
<

Actually, I don't think it would be as good for musical purposes, because
the MC1495 multiplier has a voltage input, with probably several millivolts
of input offset.  That may cause errors when the filter is set to low
frequencies, and is the same problem you run into with linear VCOs.  The
linearity is very good, though.

Because the OTA is current controlled, rather than voltage controlled, you
can accurately apply a very wide range of control current.



More information about the Synth-diy mailing list