Hello!
Ok, I see you're a new member.
This forum is to share ideas & exchange know-how and not a platter for getting your designs done!!

I've seen this happen too often when people just post their problems without giving it much thought on their own, worse even just posting specs to be met for the final design!  :o

I'd recommend you (and this goes for all newbies) first come up with your design approach and the roadblocks you face in meeting some spec or simulation issues. Then, search with keywords over here (oftentimes, your question may have been raised by someone else before). If you still have some queries, post the topic addressing the specific question in mind not throwing around your whole problem to the forum!

Please bear in mind several talented designers take out precious time from their schedule to answer queries here.

I hope you apprecitae this.

-topquark

I did find papers relevant to Gm-C filter design but i could not find any material that covers the design aspect of Gm-C filters. I previously worked on Switched Caps and found Allen & Holberg to be an useful text ... But i couldn't find any for Gm-C filters ...

I have another question ... .I found people in my class using the Filter Design Toolbox of Matlab to obtain transfer functions for the filters. From my observation i find that its a toolbox for Digital filters like IIR / FIR ... Can that be used to design an analog filter ? Though it sound silly ... i am just curious to know what it is ...

just getting the poles and zeros right, you can do that in Matlab or even on an Excel spreadsheet (phasor method is the easiest math i think) as for books on the topic? Not too much that I am aware of, some journal papers are about it. You got to develop a transconductor (think differential OTA or similar) and then a bi-quad (4 transconductors and 2 capacitors) and then you need a tuning method (I tune the -6db point using a stepping and comparison method), and you are done.