Design of High-Performance CMOS Voltage-Controlled Oscillators

  • Liang Dai
  • Ramesh Harjani

Table of contents

  1. Front Matter
    Pages i-xix
  2. Liang Dai, Ramesh Harjani
    Pages 1-7
  3. Liang Dai, Ramesh Harjani
    Pages 9-26
  4. Liang Dai, Ramesh Harjani
    Pages 27-37
  5. Liang Dai, Ramesh Harjani
    Pages 39-53
  6. Liang Dai, Ramesh Harjani
    Pages 55-86
  7. Liang Dai, Ramesh Harjani
    Pages 87-106
  8. Liang Dai, Ramesh Harjani
    Pages 107-148
  9. Liang Dai, Ramesh Harjani
    Pages 149-151
  10. Back Matter
    Pages 153-158

About this book

Introduction

Design of High-Performance CMOS Voltage-Controlled Oscillators presents a phase noise modeling framework for CMOS ring oscillators. The analysis considers both linear and nonlinear operation. It indicates that fast rail-to-rail switching has to be achieved to minimize phase noise. Additionally, in conventional design the flicker noise in the bias circuit can potentially dominate the phase noise at low offset frequencies. Therefore, for narrow bandwidth PLLs, noise up conversion for the bias circuits should be minimized. We define the effective Q factor (Qeff) for ring oscillators and predict its increase for CMOS processes with smaller feature sizes. Our phase noise analysis is validated via simulation and measurement results.
The digital switching noise coupled through the power supply and substrate is usually the dominant source of clock jitter. Improving the supply and substrate noise immunity of a PLL is a challenging job in hostile environments such as a microprocessor chip where millions of digital gates are present.

Keywords

CMOS Phase Potential analog analog circuit design circuit communication microprocessor model modeling simulation tables

Authors and affiliations

  • Liang Dai
    • 1
  • Ramesh Harjani
    • 2
  1. 1.Prominent Communications, Inc.San DiegoUSA
  2. 2.Department of Electrical and Computer EngineeringUniversity of MinnesotaMinneapolisUSA

Bibliographic information

  • DOI https://doi.org/10.1007/978-1-4615-1145-8
  • Copyright Information Kluwer Academic Publishers 2003
  • Publisher Name Springer, Boston, MA
  • eBook Packages Springer Book Archive
  • Print ISBN 978-1-4613-5414-7
  • Online ISBN 978-1-4615-1145-8
  • Series Print ISSN 0893-3405
  • About this book