Title :
A 3.8-5.5-GHz Multi-Band CMOS Frequency Synthesizer for WPAN/WLAN Applications
Author :
Lee, Ja-Yol ; Kim, Kwidong ; Kwon, Jongkee ; Lee, Seung-Chul ; Kim, Jongdae ; Lee, Sang-Heung
Author_Institution :
Electron. & Telecommun. Res. Inst.
Abstract :
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
Keywords :
1/f noise; CMOS integrated circuits; flicker noise; frequency synthesizers; personal area networks; wireless LAN; 0.13 micron; 1.2 V; 1/f flicker noise; 26 mA; 3.8 to 5.5 GHz; 5 MHz; 5.24 GHz; UWB; WLAN; WPAN; adaptive multi band LC VCO; calibrate oscillation amplitude; cross coupled MOS array; multi mode prescaler; multiband CMOS frequency synthesizer; 1f noise; Adaptive arrays; CMOS process; Counting circuits; Filters; Frequency synthesizers; Phase frequency detector; Transceivers; Voltage-controlled oscillators; Wireless LAN;
Conference_Titel :
Custom Integrated Circuits Conference, 2006. CICC '06. IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
1-4244-0075-9
Electronic_ISBN :
1-4244-0076-7
DOI :
10.1109/CICC.2006.320953
