一种提供5位频带切换控制的5GHz压控振荡器  

A 5GHz voltage-controlled oscillator with 5-bit calibration

作　　者：毛懿鸿[1] 周健军[1] 莫亭亭[1] 

机构地区：[1]上海交通大学微电子学院,上海200240

出　　处：《信息技术》2008年第5期61-63,共3页Information Technology

摘　　要：设计了一种提供5位频带切换控制的5GHz电容电感压控振荡器,采用NMOS-PMOS交叉耦合结构,并且为消除电流源的闪烁噪声而应用电阻偏置调节工作电流。电路采用TSMC RF0.18μm CMOS工艺进行仿真,仿真结果显示,在1.8V电源电压下,在偏离中心频率1MHz处的相位噪声为-120.8dBc/Hz,调谐范围为24.6%,功耗仅为2.3mW。This paper introduces a 5-GHz LC voltage-controlled oscillator with 5-bit calibration for coarse tuning. Cross-coupled CMOS architecture and a resistor tail biasing are apphed to this design for better phase noise, power and settling time performance. Simulation in Cadence SpectreRF using TSMC 0.18μm CMOS process shows that the phase noise is - 120.8dBe/Hz at 1MHz frequency offset. The tuning range is 24.6%, and power consumption is 2.3mV from a 1.8V supply.

关 键 词：压控振荡器 相位噪声 频率切换 

分 类 号：TN432[电子电信—微电子学与固体电子学] TN722