OTA VCF theory help

[Harry Bissell]

not having the schematic in fromt of me, I'd say there is a huge resistive
divider on each input... like 50-100K input and about 220 ohms or so to
ground. Almost ALL OTA
filters do this.

H^)

Hess Hodge wrote:

> Hello,
> I have been looking at the ASM-1 state-variable filter and I have a few
> questions.
>
> My main question is this: How does the filter design handle the fact that
> the input signals are "large".  What I mean is, from what I understand
> about the ota is that it only transconducts for a small differential
> voltage range, outside that range the output current will saturate to the
> max (or min) allowed by the Ibias current.
>
> I hope someone out there has some spare time to help me out with this!
> (I also hope that my question makes sense)
>
> Thanks a bunch,
> Hess