Voltage controlled ring oscillator with wide tuning range and fast voltage swing

N. Retdian1, S. Takagi2, N. Fujii
1Tokyo Institute of Technology, Meguro, Tokyo, Japan
2Department of Communications and Integrated Systems, Graduate School of Sciences and Engineerings, Tokyo Institute of Technology, Meguro, Tokyo, Japan

Tóm tắt

A new design of a voltage controlled ring oscillator is proposed. The proposed design allows an implementation of a low frequency ring oscillator using relatively small devices and less stages. A voltage controlled ring oscillator with tuning range from 40 Hz to 380 MHz is achieved using the proposed method. In addition, the proposed circuit enables the output voltage to swing faster than the conventional one.

Từ khóa

#Voltage-controlled oscillators #Voltage control #Ring oscillators #Tuning #Frequency #Circuits #Inverters #Delay #Equations #Variable structure systems

Tài liệu tham khảo

johns, 1997, Analog Integrated Circuit Desiqn rezayee, 2001, A three-stage coupled ring oscillator with quathature outputs, IEEE Int Symp Circuits and Systems hajimiri, 1999, The Design of Low Noise Oscillators