Title :
Linear analysis and speed maximization of feed forward ring oscillators
Author :
Park, Young-Seok ; Han, Pyung-Su ; Choi, Woo-Young
Author_Institution :
Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea
Abstract :
A linear model for feed forward ring oscillators (FROs) is developed and the oscillator characteristics are analyzed using the model. The model allows the prediction of multiple oscillation modes as well as the oscillation frequency of each mode. Prediction based on the model agrees well with SPICE simulation results. Using the model, a five-stage FRO is optimized for its highest oscillation frequency. Post-layout simulation shows that 12-GHz oscillation frequency is achievable with a typical 0.18-¿m CMOS technology.
Keywords :
CMOS integrated circuits; MMIC oscillators; CMOS technology; SPICE simulation; feed forward ring oscillators; frequency 12 GHz; high oscillation frequency; linear analysis; multiple oscillation mode prediction; oscillation frequency; post-layout simulation; size 0.18 mum; Analytical models; CMOS technology; Circuit simulation; Clocks; Feeds; Frequency; Predictive models; Ring oscillators; SPICE; Semiconductor device modeling; feedforward ring oscillator; oscillation frequency maximization; oscillator analysis; ring oscillator;
Conference_Titel :
Integrated Circuits, ISIC '09. Proceedings of the 2009 12th International Symposium on
Conference_Location :
Singapore
Print_ISBN :
978-9-8108-2468-6
