A Wide Range CMOS Tunable Receiver for Cordless Telephone Applications

A fully integrated receiver in a 0.13μm CMOS technology including on-chip Power Amplifier (PA) for digital cordless telephone standards is presented. The implemented frequency synthesizer shows robustness against PA coupling, excellent phase noise performance and fast settling time. The frequency tuned LNA and IF-filter is designed to cover the frequency bands from 1.8GHz to 2.5GHz. The fully integrated receiver deploys a low Intermediate Frequency (IF) architecture with a very low noise, low current consumption front-end and a complex band pass filter for channel selection. The measured receiver sensitivity level is P_0.1% = -96dBm. The transceiver uses I_TX = 35mA in transmit mode and I_RX = 25mA in receive mode from a regulated VTRX=1.5V supply. The transceiver is developed as a part of a complete System-on-Chip (SoC) cordless phone.