一种占空比可调的两相非重叠时钟发生器  

A two-phase non-overlapping clock generator with adjustable duty cycle

作　　者：张学敏[1] 王卫东[1] 

机构地区：[1]桂林电子科技大学信息与通信学院,广西桂林541004

出　　处：《电路与系统学报》2013年第1期427-431,共5页Journal of Circuits and Systems

摘　　要：本文通过调谐压控振荡器输出信号的占空比,直接产生了两相非重叠时钟信号。这一设计集振荡信号发生与非重叠时钟产生于一身,突破了传统标准电路的设计思路。本项工作获得了20%～80%的信号占空比可调范围,同时还实现了两相信号之间不重叠时间间隔的可调谐。利用SMIC 0.18μm 1P6M CMOS工艺,所需电源电压为1.8V,整个电路仅需30个晶体管。A two-phase non-overlapping clock generator from duty cycle adjustable CMOS voltage controlled oscillator（VCO） is proposed.This circuit combines oscillator signal generation and non-overlapping clock which is different from conventional standard circuit.Fabricated in SMIC 0.18μm 1P6M CMOS process with 1.8V supply voltage,a pair of two-phase non-overlapping clock signals may be obtained with tunable duty cycle range from 20% to 80%.The non-overlapping time between the two clock signals is adjustable.30 transistors are used for the whole circuit.

关 键 词：不重叠时钟发生器 压控振荡器(VCO) 可调占空比 宽频率范围 

分 类 号：TN492[电子电信—微电子学与固体电子学]