A High Swing Low Power CMOS Differential Voltage-Controlled Ring Oscillator

Author

De Paula, Luciano Severino ; Fabris, Eric ; Bampi, Sergio ; Susin, Altamiro Amadeu

Author_Institution

Fed. Univ. of Rio Grande do Sul, Porto Alegre

fYear

2007

fDate

9-11 March 2007

Firstpage

467

Lastpage

470

Abstract

This paper presents a two-stage CMOS differential voltage-controlled ring oscillator (VCO). The VCO is intended to operate as a frequency synthesizer in a PLL to generate local oscillator frequency (LO) for an acquisition system, providing in-phase/Q-phase outputs. This work proposes a differential VCO design that has a wide operating frequency tuning range with low power consumption, better phase-noise performance and good linearity between the frequency and control voltage. Simulation results verify the theoretical development and address the layout design. The circuit was designed and simulated in 0.18mum IBM CMOS technology

Keywords

CMOS integrated circuits; circuit tuning; frequency synthesizers; integrated circuit layout; low-power electronics; phase locked loops; voltage-controlled oscillators; 0.18 micron; IBM CMOS technology; acquisition system; differential voltage-controlled ring oscillator; frequency synthesizer; frequency tuning range; in-phase/Q-phase outputs; layout design; local oscillator frequency; low power CMOS oscillator; phase locked loop; CMOS technology; Circuit optimization; Circuit simulation; Energy consumption; Frequency synthesizers; Local oscillators; Phase locked loops; Ring oscillators; Tuning; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI, 2007. ISVLSI '07. IEEE Computer Society Annual Symposium on

Conference_Location

Porto Alegre

Print_ISBN

0-7695-2896-1

Type

conf

DOI

10.1109/ISVLSI.2007.6

Filename

4208963