用于蓝牙接收通道的CMOS限幅放大器和功率指示计  

A CMOS Limiting Amplifier and Received Signal Strength Indicator for Bluetooth Receiver

作　　者：王静光[1] 马德群[1] 洪志良[1] 

机构地区：[1]复旦大学专用集成电路与系统国家重点实验室,上海200433

出　　处：《应用科学学报》2005年第5期478-482,共5页Journal of Applied Sciences

基　　金：上海市"蓝牙射频芯片设计"资助项目(CX20010018)

摘　　要：介绍一种分段线性对数放大器,它可以作为蓝牙接收通道的限幅放大器和功率指示计.电路用0.35μmCMOS工艺集成在单片蓝牙射频收发芯片中.测试结果显示,在40dB的输入动态范围下,功率指示计非线性误差仅为0.5dB.A piece-wise linear logarithmic amplifier is presented. It can be used as limiting amplifier and received-signal-strength indicator （RSSI） in Bluetooth receivers. The circuit, as a part of Bluetooth RF chip, is implemented with the 0.35μm CMOS technology. 5 dB with a dynamic range of 40 dB. Measurements show that RSSI linear error is less than 0.

关 键 词：蓝牙 低功耗 分段线性对数放大器 限幅放大器 功率指示计 

分 类 号：TN722[电子电信—电路与系统]