Title :
A 5 GHz fast-switching CMOS frequency synthesizer
Author :
Xiaomin Yang ; Wu, T. ; McMacken, J.
Author_Institution :
Central Florida Univ., Orlando, FL, USA
Abstract :
A 5 GHz PLL-based frequency synthesizer for wireless LAN applications is presented in this paper. The proposed PLL is designed using 0.25 /spl mu/m CMOS technology with 3.3 V power supply. The enlarged VCO tuning range gives extra bandwidth to achieve a reduced locking time. The buffer amplifier provides additional gain to compensate the smaller VCO output amplitude level. The phase noise at 1 MHz offset is -120 dBc/Hz, and the power consumption is 30 mW.
Keywords :
CMOS analogue integrated circuits; circuit tuning; frequency synthesizers; high-speed integrated circuits; integrated circuit design; integrated circuit noise; phase locked loops; phase noise; voltage-controlled oscillators; wireless LAN; 0.25 micron; 3.3 V; 30 mW; 5 GHz; CMOS technology; PLL-based frequency synthesizer; VCO output amplitude level compensation; bandwidth; buffer amplifier; enlarged VCO tuning range; fast-switching CMOS frequency synthesizer; phase noise; power consumption; power supply voltage; reduced locking time; wireless LAN applications; Bandwidth; CMOS technology; Energy consumption; Frequency synthesizers; Phase locked loops; Phase noise; Power supplies; Tuning; Voltage-controlled oscillators; Wireless LAN;
Conference_Titel :
Radio Frequency Integrated Circuits (RFIC) Symposium, 2002 IEEE
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-7803-7246-8
DOI :
10.1109/RFIC.2002.1012096
