A dual-mode direct-conversion CMOS transceiver for Bluetooth and 802.11b

Abstract

A dual-mode direct-conversion transceiver integrates the transmitter of 0dBm output power and the receiver for both Bluetooth with -87dBm sensitivity and 802.11b with -86dBm sensitivity in a single chip with all building blocks shared for low cost and low power solution. Fabricated in 0.25/spl mu/m CMOS process, die size is 8.4mm/sup 2/ including pads and current consumption in RX is 50 mA for Bluetooth and 65mA for 802.11b.