A 3.8-5.5-GHz Multi-Band CMOS Frequency Synthesizer for WPAN/WLAN Applications

In this paper, we present a 3.8-5.5 GHz multi-band CMOS frequency synthesizer for WLAN and UWB applications. In the multi-band frequency synthesizer, both new multi-mode prescaler and adaptive multi-band LC VCO are proposed. The proposed multi-mode prescaler produces six modes of divide-by-2/3, 4/5,...

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Hauptverfasser:	Ja-Yol Lee, Kwidong Kim, Jongkee Kwon, Seung-Chul Lee, Jongdae Kim, Sang-Heung Lee
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	1f noise Adaptive arrays CMOS process Counting circuits Filters Frequency synthesizers Phase frequency detector Transceivers Voltage-controlled oscillators Wireless LAN
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creator	Ja-Yol Lee Kwidong Kim Jongkee Kwon Seung-Chul Lee Jongdae Kim Sang-Heung Lee
description	In this paper, we present a 3.8-5.5 GHz multi-band CMOS frequency synthesizer for WLAN and UWB applications. In the multi-band frequency synthesizer, both new multi-mode prescaler and adaptive multi-band LC VCO are proposed. The proposed multi-mode prescaler produces six modes of divide-by-2/3, 4/5, 8/9, 16/17, 32/33, and 64/65. In the adaptive multi-band LC VCO, the gate width of cross-coupled MOS array is tuned to calibrate oscillation amplitude and alleviate 1/f flicker noise of MOS. The multi-band frequency synthesizer represents -121 dBc/Hz at 5 MHz offset from 5.24 GHz carrier. The multi-band frequency synthesizer consumes a total current of 26mA at 1.2 V, and is manufactured in 0.13-mum CMOS process technology
doi_str_mv	10.1109/CICC.2006.320953
format	Conference Proceeding
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subjects	1f noise Adaptive arrays CMOS process Counting circuits Filters Frequency synthesizers Phase frequency detector Transceivers Voltage-controlled oscillators Wireless LAN
title	A 3.8-5.5-GHz Multi-Band CMOS Frequency Synthesizer for WPAN/WLAN Applications
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