一种具有低电源敏感度的高速CMOS压控振荡器  

A High Speed CMOS Voltage-Controlled Oscillator with Low Supply Sensitivity

作　　者：孙铁[1] 惠春[1] 王芸[1] 

机构地区：[1]上海交通大学微纳科学技术研究院,上海200030

出　　处：《微处理机》2007年第3期18-20,共3页Microprocessors

摘　　要：给出了一种低电源敏感度的高速CMOS压控振荡器设计,在延时单元中引入正反馈结构以补偿电源电压变化对输出频率的影响,在TSMC0.25μmCMOS工艺参数下使用Hspice仿真表明,电源变化1%引起的输出频率变化小于0.7%,整体振荡器的输出频率范围为2.01GHz-2.75GHz。A high speed CMOS voltage - controlled oscillator with low supply sensitivity is presented ; positive feedback structure is introduced into the delay cell to compensate frequency variation caused by supply voltage change. The simulation results with Hspice under 0.25μm TSMC CMOS process show that, supply sensitivity is less than 0.7% - delay/l% - supply; and the output frequency range is 2.01GHz - 2.75 GHz.

关 键 词：锁相环 压控振荡器 电源敏感度 

分 类 号：TN52[电子电信]