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

Luciano Severino de Paula; Eric Fabris; Sergio Bampi; Altamiro Amadeu Susin

doi:10.1109/ISVLSI.2007.6

IEEE Computer Society Annual Symposium on VLSI (ISVLSI '07)

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

Year: 2007, Pages: 467-470

DOI Bookmark: 10.1109/ISVLSI.2007.6

Authors

Luciano Severino de Paula, Federal University of Rio Grande do Sul - UFRGS
Eric Fabris, Federal University of Rio Grande do Sul - UFRGS
Sergio Bampi, Federal University of Rio Grande do Sul - UFRGS
Altamiro Amadeu Susin, Federal University of Rio Grande do Sul - UFRGS

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

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

Authors

Abstract

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