A novel CMOS Current-Steering Amplifier based Ring Oscillator with the Waveform Shaping Circuit

摘要：

Oscillator is a major part of many electronic systems. Its applications are from microprocessor clock generation to the nest bee phone carrier synthesis. This paper describes a voltage controlled ring oscillator used in ICs as inner clock source, and uses a three-stage current-steering amplifier (CSA) structure as the oscillation circuit. This VCO circuit has many advantages, such as simple structure, high operating frequency, good linearity relationship between controlling voltage and frequency, and wide frequency band. The oscillator circuit is simulated with Singapores Chartered Company 0.35μm N-well mixed signal CMOS process by Hspice software. Signals with good waveform and tuning frequency from 3～625MHz are obtained. The circuit is easy to be integrated and with low power consumption.

关键词： ring oscillator voltage controlled oscillator (VCO) current-steering amplifier based oscillator (CSA) waveform shaping circuit

作者: Liu Yili Fu Xiansong Niu Pingjuan Yang Guanghua Gao Tiecheng

作者单位: School of Information and Communication Engineering, Tianjin Polytechnic University, Tianjin, P.R.China, 300160

会议类型: 国际会议

会议名称: 2010 2nd International Conference on Signal Processing System(2010年信号处理系统国际会议 ICSPS 2010)

会议地点: 大连

会议语种:英文

页码: 2077-2080

在线出版日期: 2010-07-05（万方平台首次上网日期，不代表论文的发表时间）