A 1-V 5.2-GHz 27.5-mW fully-integrated CMOS WLAN synthesizer

A 1-V 5.2-GHz CMOS frequency synthesizer for WLAN 802.11a transceivers is implemented in a 0.18-/spl mu/m standard CMOS technology. A novel design technique is proposed to achieve a 1-V 5.2-GHz low-power programmable frequency divider for the synthesizer. At a 1-V supply, the synthesizer measures a phase noise of -136 dBc/Hz at a 20-MHz frequency offset and a spurious tone of less than -80 dBc while dissipating 27.5 mW and occupying a total core area of 1.03 mm/sup 2/.

[1]  Ting-Ping Liu,et al.  A 6.5 GHz monolithic CMOS voltage-controlled oscillator , 1999 .

[2]  H. Samavati,et al.  5-GHz CMOS wireless LANs , 2002 .

[3]  Pengfei Zhang,et al.  A direct conversion CMOS transceiver for IEEE 802.11a WLANs , 2003, 2003 IEEE International Solid-State Circuits Conference, 2003. Digest of Technical Papers. ISSCC..

[4]  Michiel Steyaert,et al.  A 1.75-GHz/3-V Dual-Modulus Divide-by-128/129 Prescaler in 0.7-μM CMOS , 1996, ESSCIRC '95: Twenty-first European Solid-State Circuits Conference.

[5]  Edgar Sánchez-Sinencio,et al.  A 5-GHz prescaler using improved phase switching , 2002, 2002 IEEE International Symposium on Circuits and Systems. Proceedings (Cat. No.02CH37353).

[6]  HongMo Wang.  A 1.8 V 3 mW 16.8 GHz frequency divider in 0.25 /spl mu/m CMOS , 2000 .

[7]  Shen-Iuan Liu,et al.  A 900-MHz 1-V CMOS frequency synthesizer , 2000, IEEE Journal of Solid-State Circuits.

[8]  Ting-Ping Liu.  A 6.5 GHz monolithic CMOS voltage-controlled oscillator , 1999, 1999 IEEE International Solid-State Circuits Conference. Digest of Technical Papers. ISSCC. First Edition (Cat. No.99CH36278).

[9]  Jan Craninckx,et al.  A 1.75-GHz/3-V dual-modulus divide-by-128/129 prescaler in 0.7-/spl mu/m CMOS , 1996 .

[10]  Torsten Lehmann,et al.  1-V power supply CMOS cascode amplifier , 2001 .

[11]  Howard C. Luong,et al.  A 2-V 1.8-GHz fully-integrated CMOS dual-loop frequency synthesizer , 2000 .