who can tell me how to simulate differential vco in cadence?

[pigkiller]

Since i wanna simulate diff vco in cds,both transient & pss analysis.
but i can't find any ossilation.
who can tell me if i want simulate diff vco,an additional pulse sourse is really a must?
anyone can give me a scheme to show me how to set up simulations of vco in cds.thanks in advance!

 

[colombo2]

Re: who can tell me how to simulate differential vco in cade

Put initial conditions on the output terminals. pick them such that they are of the form Vdd+delta and Vdd-delta

 

[hanjiemy]

LC VCO? Ring? which typy?