一种具有自动幅值控制的C类LC压控振荡器电路设计  

Design of Class-C LC Voltage-Controlled Oscillator With Automatic Amplitude Control

作　　者：盛旭阳 林敏[1] 

机构地区：[1]上海大学特种光纤与光接入网重点实验室,上海200444

出　　处：《工业控制计算机》2024年第9期129-130,133,共3页Industrial Control Computer

摘　　要：由于芯片制造和应用过程中存在工艺、电压和温度(Process Voltage Temperature,PVT)的变化导致的射频LC压控振荡器(Voltage-Controlled Oscillator,VCO)设计中的鲁棒性问题,提出了一种具有自动幅值控制环路(Automatic Amplitude Control,AAC)的C类LC压控振荡器(Class-C LC VCO)电路。仿真结果表明,所提出的电路设计能确保振荡器单端振幅峰峰值在任意PVT变化下,大于设定下限,且振幅峰峰值大于600 mV时,C类LC压控振荡器于工作频率频偏100 kHz处最小优值(FoM)为182 d Bc/Hz。For RF VCO design robustness issues due to process,voltage and temperature variations,a class-C LC voltage-controlled oscillator with automatic amplitude control is proposed in this paper.The simulation results show that the proposed circuit ensure that the peak-to-peak amplitude can be stably greater than any set level during PVT variation,and when the peak-to-peak amplitude is greater than 600 mV,the minimum FoM of class-C LC voltage-controlled oscillator at 100 kHz offset of operating frequency is 182 dBc/Hz.

关 键 词：C类LC压控振荡器 自动幅值控制 高鲁棒性 

分 类 号：TN752[电子电信—电路与系统]