文档介绍：Digital Frequency
Synthesis
Demystified
DDS and Fractional-N PLLs
Bar-Giora Goldberg
a volume in the Demystified series
Eagle Rock, VA
Library of Congress Cataloging-in-Publication Data
Goldberg, Bar-Giora.
Digital frequency synthesis demystified / Bar-Giora Goldberg.
p. cm.
“A volume in the Demystified series.”
Includes bibliographical reference and index.
ISBN 1-878707-47-7 (pbk. : alk. paper)
1. Frequency synthesizers--Design and construction. 2. Phase
-locked loops. 3. Digital electronics. I. Title.
1999
486--dc21 99-34856
CIP
Copyright © 1999 by LLH Technology Publishing.
All rights reserved. No part of the book may be reproduced, in any form or
means whatsoever, without written permission from the publisher. While
every precaution has been taken in the preparation of this book, the publisher
and author assume no responsibility for errors or omissions. Neither is any lia-
bility assumed for damages resulting from the use of the information contained
herein.
Printed in the United States of America
10 9 8 7 6 5 4 3 2 1
Cover design: Sergio Villareal
Developmental Editing: Carol Lewis
Production: Kelly Johnson
Eagle Rock, VA
To Moshe, Shoshana, Pnina, Amit, and Dror
This is a blank page.
Contents
Prefaces xi
Symbols xv
Chapter 1. Introduction to Frequency Synthesis 1
1-1 Introduction and Definitions 1
1-2 Synthesizer Parameters 5
1-2-1 Frequency Range 6
1-2-2 Frequency Resolution 6
1-2-3 Output Level 7
1-2-4 Control and Interface 7
1-2-5 Output Flatness 7
1-2-6 Output Impedance 7
1-2-7 Switching Speed 7
1-2-8 Phase Transient 8
1-2-9 Harmonics 9
1-2-10 Spurious Output 10
1-2-11 Phase Noise 10
1-2-12 Standard Reference 13
1-3 Auxiliary Specifications 13
1-4 Review of Synthesis Techniques 13
1-4-1 Phase-Locked Loop 14
1-4-2 Direct Analog Synthesis 21
1-4-3 Direct Digital Synthesis 26
1-parative Analysis 35
1-6 Conclusion 37
References 38
Ch