Setup for crystal oscillator simulations

[mircea]

Hi,
What simulations should be performed on a crystal oscillator, based on a negative impedance circuit design (besides dc, ac, transient, pnoise)? What is the setup for those simulations (what stimuli should be applied)?
Thanks

 

[alok_ky]

Crystal Osc

first and foremost is that..it must start up.

othere are normal simulations as its output frequency content...etc etc