questions about model files and simulator - RF Cafe Forums
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Post subject: questions about model files and simulator
Unread postPosted: Sat May 29, 2004 9:58 am
Joined: Mon May 24, 2004 11:30 pm
Hi..How are you? I want to design a 2.4G LC-VCO based PLL as an interest (no tape out).So I have several questions about model files and simulator.
1) There are inductor,varator and resistance in my circuit. If I want to simulate this circuit, Must the model file include inductor,varator and resistance parameters besides PMOS NMOS parameters?
2) If I use mixed-mode files(not RF process model and there are only PMOS and NMOS parameters in my model) to simulate my circuit, what will the simulator do? The simulator will act the inductors,varators as ideal component?
3) How to get free RF model files as practice?
4) What is the difference between HSPICE and SpectreRF(or @DS)? In my company,HSPICE the main simulator.but I know SpectreRF(or @DS) is the dominant simulator in RFIC. At a word, HSPICE is not suitable for what frequency range?
Thank you very much.