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A 3.8-5.5-GHz Multi-Band CMOS Frequency Synthesizer for WPAN/WLAN Applications
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- Issue Date
- 2006-09
- Citation
- IEEE Custom Integrated Circuits Conference (CICC) 2006, pp.377-380
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- 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-μm CMOS process technology. © 2006 IEEE.
- KSP Keywords
- 2.4 GHz, 5 GHz, CMOS process technology, Frequency synthesizer, Gate Width, LC voltage controlled oscillator(LC-VCO), Multi-mode, UWB applications, WLAN applications, cross-coupled, divide-by-2