Title :
A 5-GHz CMOS VCO for IEEE 802.11a WLAN application
Author :
Li Zhang ; Zhihua, Wang ; Hongyi, Chen
Author_Institution :
Inst. of Microelectron., Tsinghua Univ., Beijing, China
Abstract :
A fully-monolithic 5 GHz CMOS LC-VCO fabricated in 0.25-μm IP5M CMOS technology is presented in this paper. The tuning range of the VCO is from 4.82 GHz to 6.288 GHz, about 26.4%. The measured phase noise of 4.82 GHz is -119dBc/Hz at 1 MHz offset from the carrier. It meets the requirements for IEEE 802.11a WLAN standard. The current dissipation of the VCO is 4.92-mA from the 2.5 V power supply. In this paper, the on-chip two-turn octagon spiral inductor and on-chip bias-Ts are presented.
Keywords :
CMOS integrated circuits; IEEE standards; microwave oscillators; phase noise; voltage-controlled oscillators; wireless LAN; 0.25 micron; 2.5 V; 4.82 to 6.288 GHz; 4.92 mA; 5 GHz; CMOS LC-VCO; IEEE 802.11a; IP5M CMOS technology; WLAN application; current dissipation; on-chip two-turn octagon spiral inductor; phase noise; tuning range; voltage controlled oscillators; CMOS process; CMOS technology; Inductors; MOS devices; Phase measurement; Phase noise; Pollution measurement; Tail; Voltage-controlled oscillators; Wireless LAN;
Conference_Titel :
Solid-State and Integrated Circuits Technology, 2004. Proceedings. 7th International Conference on
Print_ISBN :
0-7803-8511-X
DOI :
10.1109/ICSICT.2004.1436793
