A LOW POWER 2.4 GHz RF TRANSCEIVER FOR ZIGBEE APPLICATIONS

摘要

This paper presents a low power RF transceiver for 2.4 GHz ZigBee applications. The current reused inductor-less-load balun low noise amplifier (LNA) with quadrature mixer is proposed for area and power saving for low-IF receiver. The transmitter adopts power efficient power amplifier (PA) to improve transmitting efficiency. This RF transceiver is implemented in 0.18 μm CMOS technology. The receiver achieves 6.5 dB noise figure (NF) and 20 dB conversion gain. The transmitter delivers maximum +3dBm output power with PA efficiency of 30%. The receiver and transmitter front-end dissipate 1.9mW and 5.3mW at 1.8V supply, respectively. The whole die area is 0.95 mm~2.