How to measure timing jitter in an Oscillator using Cadence?

[faraday_3]

Could anyone please tell me how to measure timing jitter in an Oscillator in Cadence? For question, assume it's a 5 stage voltage controlled ring oscillator. Freq is 1Ghz.

Regards,
Faraday(who struggles in CMOS!)

 

[sunking]

Timing Jitter

refer to openbook about spectreRF