How to simulation switched capacitor filter in SPICE?

[boki]

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.

 

[Andrew Beckett]

SpectreRF is a good tool for switch cap simulation.

See

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

Andrew.

On 2 Sep 2003 00:17:34 -0700, bokiteam@ms21.hinet.net (boki) wrote:

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.

--
Andrew Beckett
Senior Technical Leader
Custom IC Solutions
Cadence Design Systems Ltd