一种低功耗快速启动24MHz晶体振荡器电路的设计  

Design of a Low-power Fast-start 24MHz Crystal Oscillator Circuit

作　　者：马侠 代建宾 田也 MA Xia;DAI Jianbin;TIAN Ye(Juquan Optoelectronics Technology(Shanghai)Co.,Ltd.,Shanghai 200131,China)

机构地区：[1]钜泉光电科技(上海)股份有限公司,上海200131

出　　处：《集成电路应用》2024年第5期30-33,共4页Application of IC

摘　　要：阐述一种低功耗快速启动24MHz晶体振荡器电路,该电路通过对晶体输出管脚振荡幅度的峰值检测,将检测结果和一个参考电压进行比较,实现对晶体振荡器的偏置电流动态调整,从而达到控制晶体振荡器振荡幅度的目的。仿真和测试结果表明,该晶体振荡器启动时间小于1ms,整个电路消耗的电流可以控制在260μA以内。This paper describes a low-power fast-start 24MHz crystal oscillator circuit,which achieves the purpose of controlling the oscillation amplitude of the crystal oscillator by detecting the peak value of the oscillation amplitude of the output pin of the crystal and comparing the detection result with a reference voltage to achieve the dynamic adjustment of the bias current of the crystal oscillator.Simulation and test results show that the start-up time of the crystal oscillator is less than 1mS,and the current consumption of the whole circuit can be controlled within 260μA.

关 键 词：电路设计 振荡器 低功耗 快速启动 动态调整 

分 类 号：TN402[电子电信—微电子学与固体电子学]