Design techniques to combat process, temperature and supply variations in Bluetooth RFIC

A fully integrated Bluetooth RF transceiver with sensitivity up to -85 dBm with /spl plusmn/2 dB process variation has been achieved. The sensitivity only varies /spl plusmn/1 dB from 2.7 to 3.3V and /spl plusmn/1.5 dB from -40 to +90/spl deg/C. This RFIC is fabricated using a 0.35/spl mu/m CMOS process and can withstand a maximum input power of +5 dBm for 0.1% BER.