A 10 GHz frequency synthesiser for 802.11a in 0.18 /spl mu/m CMOS [transceiver applications]

This work presents a fully integrated frequency synthesiser for 802.11 standard. The synthesiser uses a 10 GHz VCO and a 16/17 dual modulus prescaler based on phase switching. The power consumption is 77 mW from a 1.8 V supply. The die size is only 0.43 mm/sup 2/ in a 0.18 /spl mu/m digital five metal CMOS process. The in-band phase noise is below -90 dBc/Hz at 100 kHz, meeting the requirements.