A direct-conversion single-chip radio-modem for Bluetooth

A fully-integrated radio-modem using a direct-conversion receiver architecture achieves -83 dBm sensitivity at 0.1% BER, +40 dBm IIP2, and -5 dB and -40 dB adjacent and alternate channel blocking C/I, respectively. The radio consumes 39 mA in receive and 37 mA in transmit mode with a 2.7 V supply. The 19.5 mm/sup 2/ chip uses a 0.35 /spl mu/m 27 GHz f/sub T/ SOI BiCMOS process.