Title :
A wide frequency range and adjustable duty cycle CMOS ring voltage controlled oscillator
Author :
Nguyen, Minh-Hai ; Pham, Cong-Kha
Author_Institution :
Dept. of Electron. Eng., Univ. of Electro-Commun., Chofu, Japan
Abstract :
This paper presents a voltage controlled ring oscillator (VCO) with wide tuning range and adjustable duty cycle. The circuit was designed using Rohm 0.18μm technology with 1.5V supply voltage. The simulation results show that the VCO oscillates from 300Hz up to 1.4GHz, while the duty cycle can be adjusted 20-80% independently from the oscillating frequency.
Keywords :
CMOS analogue integrated circuits; UHF oscillators; voltage-controlled oscillators; CMOS ring voltage controlled oscillator; Rohm technology; adjustable duty cycle; frequency 300 Hz to 1.4 GHz; voltage 1.5 V; wide frequency range; VCO; adjustable duty cycle; transmission gate; voltage-controlled oscillator; wide frequency range;
Conference_Titel :
Communications and Electronics (ICCE), 2010 Third International Conference on
Conference_Location :
Nha Trang
Print_ISBN :
978-1-4244-7055-6
DOI :
10.1109/ICCE.2010.5670691
