Table of Contents

FOREWORD <br>PREFACE<br>CHAPTER III: GUIDE TO THE USE OF QUARTZ CRYSTAL <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;UNITS FOR FREQUENCY CONTROL AND SELECTION<br>Clause<br>1 Introduction <br>2 The quartz crystal unit as an electronic component <br>&nbsp;&nbsp;2.1 General <br>&nbsp;&nbsp;2.2 The equivalent electrical circuit of a quartz <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;crystal unit<br>&nbsp;&nbsp;2.3 Modes of vibration as a function of frequency<br>&nbsp;&nbsp;2.4 Frequency versus temperature characteristics<br>&nbsp;&nbsp;2.5 Crystal unit parameters <br>&nbsp;&nbsp;2.6 Crystal unit enclosures <br>3 The crystal unit as a circuit component <br>&nbsp;&nbsp;3.1 General <br>&nbsp;&nbsp;3.2 Oscillators, basic concept <br>&nbsp;&nbsp;3.3 Oscillators, practical considerations <br>&nbsp;&nbsp;3.4 Frequency stability <br>&nbsp;&nbsp;3.5 Use in filter applications<br>4 Factors affecting cost and availability of quartz <br>&nbsp;&nbsp;crystal units<br>&nbsp;&nbsp;4.1 Introduction<br>&nbsp;&nbsp;4.2 Crystal unit frequency<br>&nbsp;&nbsp;4.3 Crystal unit enclosures<br>&nbsp;&nbsp;4.4 Frequency tolerances<br>&nbsp;&nbsp;4.5 AT-cut. Temperature coefficient cost aspects<br>&nbsp;&nbsp;4.6 Ageing<br>&nbsp;&nbsp;4.7 Environmental<br>&nbsp;&nbsp;4.8 General testing considerations<br>5 Technical data to accompany order form<br>&nbsp;&nbsp;5.1 Check list of crystal unit parameters to be <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;specified in article sheet<br>&nbsp;&nbsp;5.2 Mandatory requirements<br>&nbsp;&nbsp;5.3 Optional requirements<br>6 Terms and definitions<br>&nbsp;&nbsp;6.1 General terms<br>&nbsp;&nbsp;6.2 Electrical properties <br>&nbsp;&nbsp;6.3 Operational properties<br>7 Bibliography

Abstract

Draws attention to some of the more fundamental questions which should be considered by the user before he places his order for a unit for a new application, and in so doing will, it is hoped, help ensure against unsatisfactory performance, unfavourable cost and non-availability.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Electrotechnical Committee
Pages
ISBN
Committee	TC 49