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A 1-V 5.2-GHz CMOS synthesizer for WLAN applications

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2 Author(s)
Leung, G.C.T. ; Dept. of Electr. & Electron. Eng., Hong Kong Univ. of Sci. & Technol., China ; Luong, H.C.

A 1-V CMOS frequency synthesizer designed for WLAN 802.11a is presented. Novel circuit designs are demonstrated in the system for low-voltage applications including design of voltage-controlled oscillator and design of programmable divider. Implemented in a 0.18-μm CMOS process and operated at 1-V supply voltage, the synthesizer measures phase noise of -136 dBc/Hz at a frequency offset of 20 MHz and spur performance of less than -80 dBc at an offset of 11 MHz. The synthesizer dissipates 27.5 mW from a single 1-V supply and occupies a chip area of 1.03 mm2.

Published in:

Solid-State Circuits, IEEE Journal of  (Volume:39 ,  Issue: 11 )