NDLI: A /spl Delta//spl Sigma/ fractional-N frequency synthesizer with a multi-band PMOS VCOs for 2.4 and 5GHz WLAN applications

Content Provider	IEEE Xplore Digital Library
Author	Rogers, J.W.M. Cavin, M. Dai, F. Rahn, D.
Copyright Year	2003
Description	Author affiliation: Carleton Univ., Ottawa, Ont., Canada (Rogers, J.W.M.)
Abstract	This paper presents a fully integrated multi-band frequency synthesizer architecture. The synthesizer is a /spl Delta//spl Sigma/ based fractional-N frequency synthesizer with three on-chip LC tuned VCOs to cover the entire frequency bands specified in IEEE802.11b, and 802.11a WLAN standards. The synthesizer includes a /spl Delta//spl Sigma/ shaper, a dead-zone-free phase frequency detector and a fully differential charge pump. The measured in-band phase noise is lower than -93dBc/Hz and the VCO out of band phase noise is -120dBc/Hz at 1MHz offset.
Sponsorship	IEEE SSCS Infieon Technol. ATMEL Tower Semiconductor LTD
Starting Page	651
Ending Page	654
File Size	357881
Page Count	4
File Format	PDF
ISBN	0780379950
DOI	10.1109/ESSCIRC.2003.1257219
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-09-16
Publisher Place	Portugal
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Frequency synthesizers Voltage-controlled oscillators Wireless LAN Charge pumps Diodes Phase noise Phase frequency detector Inductors Varactors Voltage
Content Type	Text
Resource Type	Article

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A /spl Delta//spl Sigma/ fractional-N frequency synthesizer with a multi-band PMOS VCOs for 2.4 and 5GHz WLAN applications