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

盛旭阳 ¹林敏¹

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作者信息

1. 上海大学特种光纤与光接入网重点实验室,上海 200444
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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 dBc/Hz.

Abstract

For RF VCO design robustness issues due to process,voltage and temperature variations,a class-C LC volt-age-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

Key words

class-C LC voltage-controlled oscillator/automatic amplitude control/high robustness

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出版年

2024

工业控制计算机

中国计算机学会工业控制计算机专业委员会江苏省计算技术研究所有限责任公司

工业控制计算机

影响因子：0.258

ISSN：1001-182X

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