Title :
A 5 GHz fast-switching CMOS frequency synthesizer
Author :
Xiaomin Yang ; Wu, T. ; McMacken, J.
Author_Institution :
Univ. of Central Florida, 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. And 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; phase locked loops; voltage-controlled oscillators; wireless LAN; 0.25 micron; 3.3 V; 30 mW; 5 GHz; PLL; VCO tuning range; bandwidth; buffer amplifier; fast-switching CMOS frequency synthesizer; gain; locking time; phase noise; power consumption; wireless LAN; Bandwidth; CMOS technology; Energy consumption; Frequency synthesizers; Phase locked loops; Phase noise; Power supplies; Tuning; Voltage-controlled oscillators; Wireless LAN;
Conference_Titel :
Microwave Symposium Digest, 2002 IEEE MTT-S International
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-7803-7239-5
DOI :
10.1109/MWSYM.2002.1011689
