OTA VCF theory help

[patchell]

    If you look at the schematic you will notice that there is a resistor
attenuator on the input.  This knocks the 5-10 volts down into the 30 mV
range or so.

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

--Jim
-----------------------------------------------------------------
Visit:http://www.silcom.com/~patchell/
-----------------------------------------------------------------