IEC 60958-1:2008
(Main)Digital audio interface - Part 1: General
Digital audio interface - Part 1: General
IEC 60958-1:2008 describes a serial, uni-directional, self-clocking interface for the interconnection of digital audio equipment for consumer and professional applications. It provides the basic structure of the interface. Separate documents define items specific to particular applications. The interface is primarily intended to carry monophonic or stereophonic programmes, encoded using linear PCM and with a resolution of up to 24 bits per sample. This third edition cancels and replaces the second edition published in 2004 and constitutes a technical revision. It includes the following significant technical changes with respect to the previous edition: Electrical and optical requirements are removed from IEC 60958-3; they are specified in IEC 60958-1.
Interface audionumérique - Partie 1: Généralités
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IEC 60958-1
Edition 3.0 2008-09
INTERNATIONAL
STANDARD
Digital audio interface –
Part 1: General
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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International Standards for all electrical, electronic and related technologies.
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IEC 60958-1
Edition 3.0 2008-09
INTERNATIONAL
STANDARD
Digital audio interface –
Part 1: General
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
U
ICS 33.160.01 ISBN 978-2-88910-350-8
– 2 – 60958-1 © IEC:2008(E)
CONTENTS
FOREWORD.4
1 Scope.6
2 Normative references .6
3 Terms and definitions .6
4 Interface format .8
4.1 Structure of format .8
4.1.1 Sub-frame format.8
4.1.2 Frame format.9
4.2 Channel coding .9
4.3 Preambles .10
4.4 Validity bit .11
5 Channel status .11
5.1 General .11
5.2 Applications.11
5.3 General assignment of the first and second channel status bits.12
5.4 Category code.12
6 User data .14
6.1 General .14
6.2 Applications.14
6.2.1 Professional use.14
6.2.2 Consumer use .14
7 Electrical requirement.14
7.1 Consumer application.14
7.1.1 General .14
7.1.2 Timing accuracy .14
7.1.3 Unbalanced line.15
7.2 Professional application .18
8 Optical requirements .18
8.1 Consumer application.18
8.1.1 Optical specification .18
8.1.2 Optical connector .19
8.2 Professional applications.19
Annex A (informative) The use of the validity bit .20
Annex B (informative) Application documents and specifications.21
Annex C (informative) A relationship of the IEC 60958 series families.22
Annex D (informative) Transmission of CD data other than linear PCM audio .23
Annex E (informative) The IEC 60958 series conformant data format.24
Annex F (informative) Stream change .25
Annex G (informative) Characteristics of optical connection.27
Bibliography.29
Figure 1 – Sub-frame format (linear PCM application).9
Figure 2 – Frame format .9
Figure 3 – Channel coding .10
60958-1 © IEC:2008(E) – 3 –
Figure 4 – Preamble M (shown as 11100010) .11
Figure 5 – Simplified example of the configuration of the circuit (unbalanced).15
Figure 6 – Rise and fall times .16
Figure 7 – Intrinsic jitter measurement filter .16
Figure 8 – Eye diagram.17
Figure 9 – Receiver jitter tolerance template.17
Figure 10 – Basic optical connection.18
Figure C.1 – A relationship of IEC 60958 families .22
Figure F.1 – Audio sources and AV receiver model.25
Figure F.2 – Switching from linear PCM to non linear PCM .26
Figure F.3 – Switching from non linear PCM to linear PCM .26
Figure F.4 – Switching from non-linear PCM to non-linear PCM .26
Table 1 – Preamble coding .10
Table 2 – Channel status data format .13
Table B.1 – Application documents and specifications .21
Table G.1 – Characteristics of standard optical connection (optical interface) .27
Table G.2 – Characteristics of optical transmitter (optical interface).27
Table G.3 – Characteristics of optical receiver (optical interface) .28
Table G.4 – Characteristics of fibre optic cable.28
Table G.5 – Optical power budget for the link with plastic fibre .28
– 4 – 60958-1 © IEC:2008(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
DIGITAL AUDIO INTERFACE –
Part 1: General
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 the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees 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 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 held responsible for identifying any or all such patent rights.
International Standard 60958-1 has been prepared by IEC technical committee 100: Audio,
video and multimedia systems and equipment.
This third edition of IEC 60958-1 cancels and replaces the second edition published in 2004
and constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition.
Electrical and optical requirements are removed from IEC 60958-3; they are specified in
IEC 60958-1.
60958-1 © IEC:2008(E) – 5 –
The text of this standard is based on the following documents:
CDV Report on voting
100/1252/CDV 100/1337/RVC
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of the IEC 60958 series, under the general title Digital audio interface, can
be found o
...
IEC 60958-1 ®
Edition 3.0 2008-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Digital audio interface –
Part 1: General
Interface audionumérique –
Partie 1: Généralités
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
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questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.
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3, rue de Varembé Fax: +41 22 919 03 00
CH-1211 Geneva 20 info@iec.ch
Switzerland www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.
IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
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bibliographical information on IEC International Standards, electrical terms containing more than 30 000 terms and
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documents. Available for PC, Mac OS, Android Tablets and additional languages. Also known as the International
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The advanced search enables to find IEC publications by a More than 55 000 electrotechnical terminology entries in
variety of criteria (reference number, text, technical English and French extracted from the Terms and Definitions
committee,…). It also gives information on projects, replaced clause of IEC publications issued since 2002. Some entries
and withdrawn publications. have been collected from earlier publications of IEC TC 37,
77, 86 and CISPR.
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Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.
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en utilisant différents critères (numéro de référence, texte, anglais et en français, extraites des articles Termes et
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IEC 60958-1 ®
Edition 3.0 2008-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Digital audio interface –
Part 1: General
Interface audionumérique –
Partie 1: Généralités
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX U
ICS 33.160.01 ISBN 978-2-8322-1469-5
– 2 – IEC 60958-1:2008 © IEC 2008
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Interface format . 8
4.1 Structure of format . 8
4.1.1 Sub-frame format. 8
4.1.2 Frame format . 9
4.2 Channel coding . 9
4.3 Preambles . 10
4.4 Validity bit . 11
5 Channel status . 11
5.1 General . 11
5.2 Applications. 11
5.3 General assignment of the first and second channel status bits . 12
5.4 Category code . 12
6 User data . 14
6.1 General . 14
6.2 Applications. 14
6.2.1 Professional use . 14
6.2.2 Consumer use . 14
7 Electrical requirement . 14
7.1 Consumer application . 14
7.1.1 General . 14
7.1.2 Timing accuracy . 14
7.1.3 Unbalanced line . 15
7.2 Professional application . 18
8 Optical requirements . 18
8.1 Consumer application . 18
8.1.1 Optical specification . 18
8.1.2 Optical connector . 18
8.2 Professional applications . 19
Annex A (informative) The use of the validity bit . 20
Annex B (informative) Application documents and specifications. 21
Annex C (informative) A relationship of the IEC 60958 series families. 22
Annex D (informative) Transmission of CD data other than linear PCM audio . 23
Annex E (informative) The IEC 60958 series conformant data format . 24
Annex F (informative) Stream change . 25
Annex G (informative) Characteristics of optical connection . 27
Bibliography . 29
Figure 1 – Sub-frame format (linear PCM application) . 9
Figure 2 – Frame format . 9
Figure 3 – Channel coding . 10
Figure 4 – Preamble M (shown as 11100010) . 11
Figure 5 – Simplified example of the configuration of the circuit (unbalanced) . 15
Figure 6 – Rise and fall times . 16
Figure 7 – Intrinsic jitter measurement filter . 16
Figure 8 – Eye diagram . 17
Figure 9 – Receiver jitter tolerance template . 17
Figure 10 – Basic optical connection . 18
Figure C.1 – A relationship of IEC 60958 families . 22
Figure F.1 – Audio sources and AV receiver model . 25
Figure F.2 – Switching from linear PCM to non linear PCM . 26
Figure F.3 – Switching from non linear PCM to linear PCM . 26
Figure F.4 – Switching from non-linear PCM to non-linear PCM . 26
Table 1 – Preamble coding . 10
Table 2 – Channel status data format . 13
Table B.1 – Application documents and specifications . 21
Table G.1 – Characteristics of standard optical connection (optical interface) . 27
Table G.2 – Characteristics of optical transmitter (optical interface) . 27
Table G.3 – Characteristics of optical receiver (optical interface) . 28
Table G.4 – Characteristics of fibre optic cable . 28
Table G.5 – Optical power budget for the link with plastic fibre . 28
– 4 – IEC 60958-1:2008 © IEC 2008
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
DIGITAL AUDIO INTERFACE –
Part 1: General
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 the electrical and electronic fields. To
this end and in addition to oth
...
IEC 60958-1 ®
Edition 3.1 2014-04
CONSOLIDATED
VERSION
VERSION
CONSOLIDÉE
colour
inside
Digital audio interface –
Part 1: General
Interface audionumérique –
Partie 1: Généralités
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.
Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.
IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé Fax: +41 22 919 03 00
CH-1211 Geneva 20 info@iec.ch
Switzerland www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.
IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing more than 30 000 terms and
Technical Specifications, Technical Reports and other definitions in English and French, with equivalent terms in 14
documents. Available for PC, Mac OS, Android Tablets and additional languages. Also known as the International
iPad. Electrotechnical Vocabulary (IEV) online.
IEC publications search - www.iec.ch/searchpub IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a More than 55 000 electrotechnical terminology entries in
variety of criteria (reference number, text, technical English and French extracted from the Terms and Definitions
committee,…). It also gives information on projects, replaced clause of IEC publications issued since 2002. Some entries
and withdrawn publications. have been collected from earlier publications of IEC TC 37,
77, 86 and CISPR.
IEC Just Published - webstore.iec.ch/justpublished
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details all new publications released. Available online and If you wish to give us your feedback on this publication or
also once a month by email. need further assistance, please contact the Customer Service
Centre: csc@iec.ch.
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.
A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.
Catalogue IEC - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
Application autonome pour consulter tous les renseignements
Le premier dictionnaire en ligne de termes électroniques et
bibliographiques sur les Normes internationales,
électriques. Il contient plus de 30 000 termes et définitions en
Spécifications techniques, Rapports techniques et autres
anglais et en français, ainsi que les termes équivalents dans
documents de l'IEC. Disponible pour PC, Mac OS, tablettes
14 langues additionnelles. Egalement appelé Vocabulaire
Android et iPad.
Electrotechnique International (IEV) en ligne.
Recherche de publications IEC - www.iec.ch/searchpub
Glossaire IEC - std.iec.ch/glossary
Plus de 55 000 entrées terminologiques électrotechniques, en
La recherche avancée permet de trouver des publications IEC
en utilisant différents critères (numéro de référence, texte, anglais et en français, extraites des articles Termes et
comité d’études,…). Elle donne aussi des informations sur les Définitions des publications IEC parues depuis 2002. Plus
projets et les publications remplacées ou retirées. certaines entrées antérieures extraites des publications des
CE 37, 77, 86 et CISPR de l'IEC.
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Restez informé sur les nouvelles publications IEC. Just
Published détaille les nouvelles publications parues. Si vous désirez nous donner des commentaires sur cette
Disponible en ligne et aussi une fois par mois par email. publication ou si vous avez des questions contactez-nous:
csc@iec.ch.
IEC 60958-1 ®
Edition 3.1 2014-04
CONSOLIDATED
VERSION
VERSION
CONSOLIDÉE
colour
inside
Digital audio interface –
Part 1: General
Interface audionumérique –
Partie 1: Généralités
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.160.01 ISBN 978-2-8322-1561-6
IEC 60958-1 ®
Edition 3.1 2014-04
REDLINE VERSION
VERSION REDLINE
colour
inside
Digital audio interface –
Part 1: General
Interface audionumérique –
Partie 1: Généralités
– 2 – IEC 60958-1:2008
+AMD1:2014 CSV © IEC 2014
CONTENTS
FOREWORD . 4
INTRODUCTION to Amendment 1 . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Interface format . 9
4.1 Structure of format . 9
4.1.1 Sub-frame format. 9
4.1.2 Frame format . 10
4.2 Channel coding . 10
4.3 Preambles . 11
4.4 Validity bit . 12
5 Channel status . 12
5.1 General . 12
5.2 Applications. 12
5.3 General assignment of the first and second channel status bits . 13
5.4 Category code . 13
6 User data . 15
6.1 General . 15
6.2 Applications. 15
6.2.1 Professional use . 15
6.2.2 Consumer use . 15
7 Electrical requirement . 15
7.1 Consumer application . 15
7.1.1 General . 15
7.1.2 Timing accuracy . 15
7.1.3 Unbalanced line . 16
7.2 Professional application . 19
8 Optical requirements . 19
8.1 Consumer application . 19
8.1.1 Optical specification . 19
8.1.2 Optical connector . 19
8.2 Professional applications . 20
Annex A (informative) The use of the validity bit . 21
Annex B (informative) Application documents and specifications. 22
Annex C (informative) A relationship of the IEC 60958 series families. 23
Annex D (informative) Transmission of CD data other than linear PCM audio . 26
Annex E (informative) The IEC 60958 series conformant data format . 27
Annex F (informative) Stream change . 28
Annex G (informative) Characteristics of optical connection . 30
Bibliography . 32
Figure 1 – Sub-frame format (linear PCM application) . 10
+AMD1:2014 CSV © IEC 2014
Figure 2 – Frame format . 10
Figure 3 – Channel coding . 11
Figure 4 – Preamble M (shown as 11100010) . 12
Figure 5 – Simplified example of the configuration of the circuit (unbalanced) . 16
Figure 6 – Rise and fall times . 17
Figure 7 – Intrinsic jitter measurement filter . 17
Figure 8 – Eye diagram . 18
Figure 9 – Receiver jitter tolerance template . 18
Figure 10 – Basic optical connection . 19
Figure C.1 – A Relationships of the IEC 60958 families . 24
Figure F.1 – Audio sources and AV receiver model . 28
Figure F.2 – Switching from linear PCM to non linear PCM . 29
Figure F.3 – Switching from non linear PCM to linear PCM . 29
Figure F.4 – Switching from non-linear PCM to non-linear PCM . 29
Table 1 – Preamble coding . 11
Table 2 – Channel status data format . 14
Table B.1 – Application documents and specifications . 22
Table C.1 – data_type values and application . 25
Table G.1 – Characteristics of standard optical connection (optical interface) . 30
Table G.2 – Characteristics of optical transmitter (optical interface) . 30
Table G.3 – Characteristics of optical receiver (optical interface) . 31
Table G.4 – Characteristics of fibre optic cable .
...
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