Title :
A dual-path three-stage VCO with wide tuning range
Author :
Yang, Wen-Rong ; Jiang, Wei-yang
Author_Institution :
Shanghai Univ., Shanghai
Abstract :
In this paper, a full integrated high-speed ring VCO is designed. The VCO consists of three stages, each of which is composed of a fast path and a slow path while the outputs of both paths are summed. Since the 0.25 um CMOS technology and 3.3 v voltage supply, the VCO has a wide operating frequency ranging from 800 MHz to 2.1 GHz with a high gain of 1.08 GHz/V PLL and frequency synthesizer will be the potential applications.
Keywords :
CMOS integrated circuits; UHF integrated circuits; UHF oscillators; frequency synthesizers; phase locked loops; tuning; voltage-controlled oscillators; CMOS technology; UHF oscillators; frequency 800 MHz to 2.1 GHz; frequency synthesizer; phase locked loops; ring oscillators; size 0.25 mum; tuning range; voltage 3.3 V; voltage-controlled oscillators; CMOS technology; Delay; Frequency synthesizers; Interpolation; Linearity; Ring oscillators; Tail; Tuning; Voltage; Voltage-controlled oscillators;
Conference_Titel :
ASIC, 2007. ASICON '07. 7th International Conference on
Conference_Location :
Guilin
Print_ISBN :
978-1-4244-1132-0
Electronic_ISBN :
978-1-4244-1132-0
DOI :
10.1109/ICASIC.2007.4415687
