I am very thankful for your reply...Read a lot of posts by you and Andrew in various topics and a fan of your knowledge and work..
I got the correct graph yesterday when I changed errpreset to 'moderate' and putting tstab as 60n..but the values of phase noise was aroung -140dbc/hz at 1Mhz offset...I was surprised as to how it could be so low...
Today,after reading your post,I changed errpreset to 'conservative' & the simulation is failing..the output logs had few warnings-
C0.dsx.dnwx:breakdown voltage exceeded
C0.dsx.dnwx:junction current density exceeds 'imax'
and after that the error came-
maximum number of iterations reached.Simulations failed to converge.you can try to increase tstab and harms.
I increased the tstab from 60n to 100n and the harmonics from 10 to 20...the simulation still fails...
Also, thanks for the urls you posted...it helps just knowing that people are there to help amateurs like me...