Title :
A 1-V, 9.7mW CMOS frequency synthesizer for WLAN 802.11a transceivers
Author :
Leung, Lincoln L K ; Luong, Howard C.
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ. of Sci. & Technol., China
Abstract :
A 1-V CMOS frequency synthesizer is proposed by using a transformer-feedback VCO for low voltage and a stacked divider for low power. Implemented in 0.18-μm CMOS process, the synthesizer is operated with a 1 V supply while consuming 10mW and occupying an area of 1.28mm2. It measures a phase noise of -139dBc/Hz at an offset of 20MHz with a center frequency of 4.256GHz. The frequency tuning range of the frequency synthesizer is measured from 4.114-4.352GHz with a total number of 16 channels.
Keywords :
CMOS integrated circuits; IEEE standards; frequency synthesizers; low-power electronics; transceivers; voltage-controlled oscillators; wireless LAN; 0.18 micron; 1 V; 10 mW; 4.114 to 4.352 GHz; 9.7 mW; CMOS frequency synthesizer; WLAN 802.11a transceivers; frequency tuning; transformer feedback VCO; voltage controlled oscillator; CMOS process; Frequency measurement; Frequency synthesizers; Low voltage; Noise measurement; Phase measurement; Phase noise; Transceivers; Voltage-controlled oscillators; Wireless LAN;
Conference_Titel :
VLSI Circuits, 2005. Digest of Technical Papers. 2005 Symposium on
Print_ISBN :
4-900784-01-X
DOI :
10.1109/VLSIC.2005.1469379
