How to simulation switched capacitor filter in SPICE?

Hi, All:
How to simulation switched capacitor filter in SPICE?
The switch is working at time-domain, the result I want is frequency domain,
If I get the result from timm-domain and do fft, is that result correct?

Thanks a lot.
Boki.

 

SpectreRF is a good tool for switch cap simulation.

See

http://www.designers-guide.com/Analysis/sc-filters.pdf

Andrew.

 

Dear Andrew,
We have this program in our server, but.. could you please
tell me how to start it ... ( command ), something like icde / icfb /
layout ...

Thanks a lot!
Boki.

 

I let the exact answer to Andrew. But on the long run, you can learn a
lot of things by reading the documentation. You can do that from the
command line by typing at the prompt : cdsdoc&
or click on help in any "cadence" window (the help is at the upper right).
HTH

 

Boki:
In analog artist, select spectre.

From the schematic:
Tools->Analog Environment
Setup->Simulator
Select spectre
set up analysis and netlist and run

spectre can be run command line with command spectre
see spectre -h