EN 60862-2:2012
(Main)Surface acoustic wave (SAW) filters of assessed quality - Part 2: Guidelines for the use
Surface acoustic wave (SAW) filters of assessed quality - Part 2: Guidelines for the use
IEC 60862-2:2012 gives practical guidance on the use of SAW filters which are used in telecommunications, measuring equipment, radar systems and consumer products. IEC 60862-1 should be referred to for general information, standard values and test conditions. This part of IEC 60862 includes various kinds of filter configuration, of which the operating frequency range is from approximately 10 MHz to 3 GHz and the relative bandwidth is about 0,02 % to 50 % of the centre frequency. It is not the aim of this standard to explain theory, nor to attempt to cover all the eventualities which may arise in practical circumstances. This standard draws attention to some of the more fundamental questions, which should be considered by the user before he places an order for a SAW filter for a new application. Such a procedure will be the user's insurance against unsatisfactory performance. This edition includes the following significant technical changes with respect to the previous edition: - Clause 3 'Terms and definitions' has been deleted to be included in the next edition of IEC 60862-1; - the tapered IDT filter and the RSPUDT filter have been added to the clause of SAW transversal filters. Also DART, DWSF and EWC have been added as variations of SPUDT; - the balanced connection has been added to the subclause of coupled resonator filters; - recent substrate materials have been described; - a subclause about packaging of SAW filters has been added.
Oberflächenwellenfilter (OFW-Filter) mit bewerteter Qualität - Teil 2: Leitfaden für die Anwendung
Filtres à ondes acoustiques de surface (OAS) sous assurance de la qualité - Partie 2: lignes directrices d'utilisation
La CEI 60862-2:2012 indique des lignes directrices concernant l'emploi pratique des filtres à OAS pour l'utilisation dans les télécommunications, dans les équipements de mesure, les systèmes radars et les produits de grande consommation. Il convient de se reporter à la CEI 60862-1 pour les informations générales, les valeurs normalisées et les conditions d'essais. Cette partie de la CEI 60862 englobe les divers types de configuration de filtre dont la gamme de fréquences de fonctionnement s'étend approximativement de 10 MHz à 3 GHz et la largeur de bande relative est d'environ 0,02 % à 50 % de la fréquence centrale. Cette norme n'a pas pour but de développer des notions théoriques ni de couvrir tous les cas qui peuvent se poser en pratique. Cette norme attire l'attention sur certaines questions plus fondamentales qu'il convient que l'utilisateur examine avant de commander un filtre à OAS pour une nouvelle application. Une telle procédure servira de garantie à l'utilisateur en cas de fonctionnement non satisfaisant. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: - l'Article 3 'Termes et définitions' a été supprimé en vue d'être inclus dans la prochaine édition de la CEI 60862-1; - le filtre à TID conique et le filtre à TUDMR ont été ajoutés à l'article des filtres transversaux à OAS. De même, les DART, DWSF et EWC ont été ajoutés en tant que variantes de TUDM; - la connexion symétrique a été ajoutée au paragraphe des filtres à résonateurs couplés; - les matériaux récents pour substrats ont été décrits; - un paragraphe relatif à l'emballage des filtres à OAS a été ajouté.
Filtri za površinske akustične valove (SAW) ocenjene kakovosti - 2. del: Navodilo za uporabo
Ta del standarda IEC 60862 določa praktične napotke za uporabo radiofrekvenčnih (SAW) filtrov, ki se uporabljajo na področju telekomunikacij, merilne opreme, radarskih sistemov in potrošniških proizvodov. Standard IEC 60862-1 naj bi se uporabljal za splošne informacije, standardne vrednosti in preskusne pogoje. Radiofrekvenčni filtri se zdaj pogosto uporabljajo za različne namene, kot so TV, satelitske komunikacije, optične komunikacije, mobilne komunikacije itd. Radiofrekvenčni filtri imajo različne specifikacije, kljub temu pa jih je mogoče razvrstiti v nekaj temeljnih kategorij. Ta del standarda IEC 60862 zajema različne vrste konfiguracij filtrov s frekvenčnim območjem delovanja od približno 10 MHz do 3 GHz in relativno pasovno širino približno od 0,02 % do 50 % srednje frekvence. Cilj tega standarda ni pojasniti teorijo, niti poskusiti zajeti vseh morebitnih primerov, do katerih lahko pride v praktičnih okoliščinah. Ta standard opozarja na nekatera bolj temeljna vprašanja, o katerih bi moral razmisliti uporabnik, preden naroči filter za površinske akustične valove za novo aplikacijo. S tem se bo zavaroval pred nezadovoljivo izvedbo. Standardne specifikacije iz skupine standardov IEC 60862 ter nacionalne ali podrobne specifikacije, ki so jih izdali proizvajalci, opredeljujejo razpoložljive kombinacije nazivne frekvence, pasovne širine za prepuščanje, valovanja, oblikovnega faktorja, izhodne impedance itd. Te specifikacije so sestavljene tako, da vključujejo širok razpon filtrov za površinske akustične valove s standardiziranimi zmogljivostmi. Zelo pomembno je, da uporabnik, kadar je le mogoče, svoje filtre za površinske akustične valove izbere med temi specifikacijami, če so na voljo, čeprav bo zato moral nekoliko spremeniti tokokrog, da bo omogočil uporabo standardnih filtrov. To velja zlasti za izbiro nazivne frekvence.
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2012
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Surface acoustic wave (SAW) filters of assessed quality - Part 2: Guide to the use
Oberflächenwellenfilter (OFW-Filter) mit bewerteter Qualität - Teil 2: Leitfaden für die
Anwendung
Filtres à ondes acoustiques de surface (OAS) sous assurance de la qualité - Partie 2:
Guide d'utilisation
Ta slovenski standard je istoveten z: EN 60862-2:2012
ICS:
31.160 (OHNWULþQLILOWUL Electric filters
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 60862-2
NORME EUROPÉENNE
August 2012
EUROPÄISCHE NORM
ICS 31.140 Supersedes EN 60862-2:2002
English version
Surface acoustic wave (SAW) filters of assessed quality -
Part 2: Guidelines for the use
(IEC 60862-2:2012)
Filtres à ondes acoustiques de surface Oberflächenwellenfilter (OFW-Filter)
(OAS) sous assurance de la qualité - mit bewerteter Qualität -
Partie 2: lignes directrices d'utilisation Teil 2: Leitfaden für die Anwendung
(CEI 60862-2:2012) (IEC 60862-2:2012)
This European Standard was approved by CENELEC on 2012-06-11. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the CEN-CENELEC Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the CEN-CENELEC Management Centre has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60862-2:2012 E
Foreword
The text of document 49/933/CDV, future edition 3 of IEC 60862-2, prepared by IEC/TC 49
"Piezoelectric, dielectric and electrostatic devices and associated materials for frequency control,
selection and detection" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN 60862-2:2012.
The following dates are fixed:
(dop) 2013-03-11
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2015-06-11
standards conflicting with the
document have to be withdrawn
This document supersedes EN 60862-2:2002.
EN 60862-2:2002:
- Clause 3 “Terms and definitions” has been deleted to be included in the next edition of
EN 60862-1;
- the tapered IDT filter and the RSPUDT filter have been added to the clause of SAW transversal
filters. Also DART, DWSF and EWC have been added as variations of SPUDT;
- the balanced connection has been added to the subclause of coupled resonator filters;
- recent substrate materials have been described;
- a subclause about packaging of SAW filters has been added.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 60862-2:2012 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 60862 Series NOTE Harmonised as EN 60862 Series (not modified).
IEC 60862-1:2003 NOTE Harmonised as EN 60862-1:2003 (not modified).
IEC 61019-2:2005 NOTE Harmonised as EN 61019-2:2005 (not modified).
IEC 60862-2 ®
Edition 3.0 2012-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Surface acoustic wave (SAW) filters of assessed quality –
Part 2: Guidelines for the use
Filtres à ondes acoustiques de surface (OAS) sous assurance de la qualité –
Partie 2: Lignes directrices d’utilisation
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XB
ICS 31.140 ISBN 978-2-88912-074-1
– 2 – 60862-2 © IEC:2012
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Technical considerations . 8
4 Fundamentals of SAW transversal filters . 9
4.1 Frequency response characteristics . 9
4.2 Weighting methods . 10
4.3 Filter configurations and their general characteristics . 13
4.3.1 General . 13
4.3.2 Bidirectional IDT filters . 14
4.3.3 Unidirectional IDT (UDT) filters . 15
4.3.4 Tapered IDT filters . 22
4.3.5 Reflector filters . 23
4.3.6 RSPUDT filters . 27
5 Fundamentals of SAW resonator filters . 30
5.1 Classification of SAW resonator filters . 30
5.2 Ladder and lattice filters . 30
5.2.1 Basic structure . 30
5.2.2 Principle of operation . 31
5.2.3 Characteristics of ladder and lattice filters . 32
5.3 Coupled resonator filters . 35
5.3.1 General . 35
5.3.2 Transversely coupled type . 36
5.3.3 Longitudinally coupled type . 36
5.3.4 Other characteristics of coupled resonator filters . 36
5.3.5 Balanced connection . 41
5.4 Interdigitated interdigital transducer (lIDT) resonator filters . 45
5.4.1 Configuration . 45
5.4.2 Principle . 45
5.4.3 Characteristics . 45
6 Application guidelines . 46
6.1 Substrate materials and their characteristics . 46
6.2 Application to electronics circuits. 50
6.3 Availability and limitations . 52
6.4 Input levels . 53
6.5 Packaging of SAW filters . 54
7 Practical remarks. 56
7.1 General . 56
7.2 Feed-through signals . 56
7.3 Impedance matching condition . 57
7.4 Miscellaneous . 57
7.4.1 Soldering conditions . 57
7.4.2 Static electricity . 57
8 Ordering procedure . 58
60862-2 © IEC:2012 – 3 –
Bibliography . 61
Figure 1 – Frequency response of a SAW filter . 10
Figure 2 – Applicable range of frequency and relative bandwidth of the SAW filter and
the other filters . 11
Figure 3 – Schematic diagram showing signal flow through a transversal filter . 11
Figure 4 – Basic configuration of a SAW transversal filter . 12
Figure 5 – Frequency response of the SAW transversal filter shown in Figure 4, where
f is the centre frequency and N is the number of finger pairs of the IDT . 12
Figure 6 – Apodization weighting obtained by apodizing fingers . 13
Figure 7 – Withdrawal weighting obtained by selective withdrawal of the fingers . 13
Figure 8 – Series weighting obtained by the dog-leg structure . 13
Figure 9 – Split-finger configuration . 14
Figure 10 – Typical characteristics of a SAW IF filter for radio transmission equipment
(nominal frequency of 70,0 MHz) . 17
Figure 11 – Typical characteristics of a frequency asymmetrical SAW filter (nominal
frequency of 58,75 MHz for TV-IF use) . 17
Figure 12 – SAW three-IDT filter . 18
Figure 13 – Typical frequency response of a 900 MHz range SAW filter for
communication (mobile telephone use) . 18
Figure 14 – Schematic of the IIDT (multi-IDT) filter . 19
Figure 15 – Multi-phase unidirectional transducer . 19
Figure 16 – Single-phase unidirectional transducers . 20
Figure 17 – Frequency characteristics of a filter using multi-phase unidirectional
transducers . 21
Figure 18 – Frequency characteristics of a filter using single-phase unidirectional
transducers . 21
Figure 19 – Tapered IDT filter . 22
Figure 20 – Frequency response of a 140 MHz tapered IDT filter . 22
Figure 21 – Various reflector filter configurations . 24
Figure 22 – Z-path filter configuration .
...
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