how to set up transient & pss analysis of VCO in cds?

Status
Not open for further replies.

pigkiller

Member level 4
Joined
May 28, 2003
Messages
70
Helped
1
Reputation
2
Reaction score
0
Trophy points
1,286
Location
Hangzhou
Activity points
590
Since i wanna simulate a diff vco,I have referred to the diff vco example in the spectreRF user's guide & connected one current pulse to the reference port,but the fundemental freq i have got differ from the freq i designed.If i changed the rise time of the current pulse,different fundemental freq i got,so how can i?
who can tell me how to set up the right scheme vco simulation in cds?transient & pss both,thx
 

You could use differential output as the positive and negative output in the PSS setting
 

Re: how to set up transient & pss analysis of VCO in cds

That means there is something wrong with your circuit.
 

Status
Not open for further replies.
Cookies are required to use this site. You must accept them to continue using the site. Learn more…