A wide tuning range-163 FOM CMOS quadrature ring oscillator for inductorless reconfigurable PLL

S. Lingala, R. K. Pokharel, A. Tomar, H. Kanaya, K. Yoshida

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

This paper presents the design and implementation of a quadrature voltage-controlled ring oscillator with the improved figure of merit (FOM) using the four single-ended inverter topology. A new topology to prevent the latch-up in single ended ring oscillators is proposed. The design is implemented in 0.18 μm CMOS technology and the measurement results show a FOM of -163.8 dBc/Hz with the phase noise of -125.8 dBc/Hz at 4 MHz offset from the carrier frequency of 3.62 GHz. It exhibits a frequency tuning range from 1.23 GHz to 4.17 GHz with coarse and fine frequency sensitivity of 1.08 MHz/mV and 120 kHz/mV, respectively.

Original languageEnglish
Title of host publication2010 International Symposium on Signals, Systems and Electronics, ISSSE2010 - Proceedings
Pages253-256
Number of pages4
DOIs
Publication statusPublished - Dec 24 2010
Event2010 International Symposium on Signals, Systems and Electronics, ISSSE2010 - Nanjing, China
Duration: Sep 17 2010Sep 20 2010

Publication series

NameConference Proceedings of the International Symposium on Signals, Systems and Electronics
Volume1

Other

Other2010 International Symposium on Signals, Systems and Electronics, ISSSE2010
Country/TerritoryChina
CityNanjing
Period9/17/109/20/10

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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