1、 IEC 61019-2 Edition 2.0 2005-05 INTERNATIONAL STANDARD NORME INTERNATIONALE Surface acoustic wave (SAW) resonators Part 2: Guide to the use Rsonateurs ondes acoustiques de surface (OAS) Partie 2: Guide demploi IEC 61019-2:2005-05(EN-FR) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2005 IEC, Ge
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19、on ou si vous avez des questions contactez-nous: csciec.ch. IEC 61019-2 Edition 2.0 2005-05 INTERNATIONAL STANDARD NORME INTERNATIONALE Surface acoustic wave (SAW) resonators Part 2: Guide to the use Rsonateurs ondes acoustiques de surface (OAS) Partie 2: Guide demploi INTERNATIONAL ELECTROTECHNICAL
20、 COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE U ICS 31.140 PRICE CODE CODE PRIX ISBN 978-2-8322-1340-7 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication fr
21、om an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 61019-2 IEC:2005 CONTENTS FOREWORD . 3 INTRODUCTION . 5 1 Scope . 6 2 Normative references . 6 3 Technical considerations 6 4 Fundamentals of SAW resonators. 7 4.1 Basic s
22、tructure 7 4.2 Principle of operation 7 5 SAW resonator characteristics 8 5.1 Reflector characteristics 8 5.2 SAW resonator characteristics. 10 5.3 Spurious modes 14 5.4 Substrate materials and their characteristics . 15 5.5 Available characteristics 17 6 Application guide 19 6.1 Oscillator circuits
23、 and oscillation condition 19 6.2 Practical remarks for oscillator applications . 21 7 Checklist of SAW resonator parameters for drawing up specifications 22 Bibliography 25 61019-2 IEC:2005 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ SURFACE ACOUSTIC WAVE (SAW) RESONATORS Part 2: Guide to the use
24、 FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in th
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32、mittees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn
33、to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be
34、 held responsible for identifying any or all such patent rights. International Standard IEC 61019-2 has been prepared by IEC technical committee 49: Piezoelectric and dielectric devices for frequency control and selection. This second edition cancels and replaces the first edition published in 1995.
35、 This edition constitutes a technical revision. The main changes with respect to the previous editon are listed below: at the end of 5.1, the edge reflector has been added. Its reference literature has been inserted in the bibliography; in Table 1, the propagation properties of LiNbO 3(64 Y) have be
36、en added; in Table 3, the clause and subclause numbers have been corrected in order to be consistent with IEC 61019-1 (2004) which has replaced IEC 61019-1-1 (1990) and IEC 61019-1-2 (1993). 4 61019-2 IEC:2005 This bilingual version (2014-02) corresponds to the monolingual English version, published
37、 in 2005-05. The text of this standard is based on the following documents: FDIS Report on voting 49/714/FDIS 49/723/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. The French version of this standard has not bee
38、n voted upon. IEC 61019 consists of the following parts, under the general title Surface acoustic wave (SAW) resonators Part 1: Generic information Part 2: Guide to the use Part 3: Standard outlines and lead connections This publication has been drafted in accordance with the ISO/IEC Directives, Par
39、t 2. The committee has decided that the contents of this publication will remain unchanged until the maintenance result date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed; withdrawn; repl
40、aced by a revised edition, or amended. 61019-2 IEC:2005 5 INTRODUCTION This part of IEC 61019 gives practical guidance to the use of SAW resonators which are used in telecommunications, radio equipments and consumer products. IEC 61019-1 can be referred to for general information, standard values an
41、d test conditions. The features of these SAW resonators are small size, light weight, adjustment-free and high stability. In addition, the operating frequency of SAW resonators extends to the VHF and UHF ranges. This part has been compiled in response to a generally expressed desire on the part of b
42、oth users and manufacturers for a guide to the use of SAW resonators, so that the resonators may be used to their best advantage. To this end, general and fundamental characteristics have been explained in this guide. 6 61019-2 IEC:2005 SURFACE ACOUSTIC WAVE (SAW) RESONATORS Part 2: Guide to the use
43、 1 Scope SAW resonators are now widely used in a variety of applications: VCR RF-converters, CATV local oscillators, measuring equipment, remote control and so on. While SAW resonators are also applied to narrow bandwidth filters, the scope of this part of IEC 61019 is limited to SAW resonators for
44、oscillator applications It is not the aim of this guide to explain theory, nor to attempt to cover all the eventualities which may arise in practical circumstances. This guide draws attention to some of the more fundamental questions, which should be considered by the user before he places an order
45、for a SAW resonator for a new application. Such a procedure will be the users insurance against unsatisfactory performance. Standard specifications, such as those of the IEC of which this guide forms a part, and national specifications or detail specifications issued by manufacturers, will define th
46、e available combinations of resonance frequency, quality factor, motional resistance, parallel capacitance, etc. These specifications are compiled to include a wide range of SAW resonators with standardized performances. It cannot be over-emphasized that the user should, wherever possible, select hi
47、s SAW resonators from these specifications, when available, even if it may lead to making small modifications to his circuit to enable the use of standard resonators. This applies particularly to the selection of the nominal frequency. 2 Normative references The following referenced documents are in
48、dispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 61019-1:2004, Surface acoustic wave (SAW) resonators Part 1: Generic specification IEC
49、 61019-3:1991, Surface acoustic wave (SAW) resonators Part 3: Standard outlines and lead connections 3 Technical considerations It is of prime interest to a user that the resonator characteristics should satisfy particular specifications. The selection of oscillating circuits and SAW resonators to meet such specifications should be a matter of agreement between user and manufacturer. Resonator characteristics are usually exp
