论文信息 - Process Variation Compensation Technique for Voltage-controlled Ring Oscillator

Process Variation Compensation Technique for Voltage-controlled Ring Oscillator

A voltage-controlled ring oscillator with process variation compensation circuits is designed using 0.25 µm CMOS technology. The simulation results show that the proposed ring oscillator increases the guaranteed frequency tuning range by 12% compared to a conventional ring oscillator. Copyright © 2007 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

[1] Beomsup Kim,et al. A low-noise, 900-MHz VCO in 0.6-/spl mu/m CMOS , 1999 .

[2] A. Maxim,et al. A low-jitter 125-1250-MHz process-independent and ripple-poleless 0.18-/spl mu/m CMOS PLL based on a sample-reset loop filter , 2001 .

[3] Daniel P. Foty,et al. MOSFET Modeling With SPICE: Principles and Practice , 1996 .