A 5.8 GHz fully integrated low power low phase noise CMOS LC VCO for WLAN applications
- 25 June 2003
- proceedings article
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
A fully integrated low power and low phase noise 5.8 GHz VCO is designed and fabricated in standard 0.24 /spl mu/m single-poly, 5-metal digital CMOS process. The VCO-core draws 2 mA of current from a 2.5 V supply. Measured phase noise at 1 MHz offset from the center frequency is -112 dBc/Hz. It has a tuning range of 810 MHz with low phase noise performance throughout the tuning range. It meets the requirements for IEEE802.11a WLAN standard. Low power and low phase noise have been achieved simultaneously by the use of np complementary cross-coupled topology. The novel orientation of the inductor pair used in the design minimizes the effect of any unwanted common-mode magnetic coupling that may arise from other on-chip inductors in an integrated environment.Keywords
This publication has 7 references indexed in Scilit:
- A 2.6 GHz/5.2 GHz CMOS voltage-controlled oscillatorPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Concepts and methods in optimization of integrated LC VCOsIEEE Journal of Solid-State Circuits, 2001
- Fully integrated 5.35-GHz CMOS VCOs and prescalersIEEE Transactions on Microwave Theory and Techniques, 2001
- A -94 dBc/Hz@100 kHz, fully-integrated, 5-GHz, CMOS VCO with 18% tuning range for Bluetooth applicationsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2001
- Design issues in CMOS differential LC oscillatorsIEEE Journal of Solid-State Circuits, 1999
- A 1.8-GHz low-phase-noise CMOS VCO using optimized hollow spiral inductorsIEEE Journal of Solid-State Circuits, 1997
- BER sensitivity of OFDM systems to carrier frequency offset and Wiener phase noiseIEEE Transactions on Communications, 1995