本文提出了一种适用于IEEE 802．15．4标准的2.4GHz免认证ISM频段的全集成CMOS射频收发机．接收机采用低中频结构以降低功耗、提高灵敏度，发射机则采用直接上变频结构以降低设计复杂度和功耗．芯片采用0.18μm 1P4M CMOS工艺以及MIM电容制造，供电电压1.8V ．测试结果显示，在误包率为1％时，接收机灵敏度达到了-97dBm ，发射机输出至100Ω差分天线端口的最大输出功率为＋3dBm ．接收模式和发射模式下的电流功耗分别为17mA和19mA ，芯片面积3.3mm ×2.8mm ．%A highly integrated CMOS transceiver was presented for 2 .4GHz unlicensed ISM (Industrial ,Scientific and Medi-cal ) band compatible to the IEEE 802 .15 .4 Standard .Low-IF topology was adopted in the receiver for low power consumption and high sensitivity while direct up-conversion in transmitter for low complexity .The transceiver chip has been fabricated in a 0 .18μm 1P4M CMOS (Complementary Metal Oxide Semiconductor ) technology with MIM (Metal-Insulator-Metal ) capacitors and supplied by a single 1 .8V .The experimental results show that the receiver achieves a sensitivity of -97dBm for PER(Packet Error Rate) of 1% and the transmitter provides a max power output of +3dBm into 100Ω differential antenna port .This transceiver dissipates 17mA in receive mode and 19mA in transmit mode and occupies an area of 3 .3mm × 2 .8mm .
展开▼
