EN 60958-1:2008

Digital audio interface - Part 1: General

IEC 60958-1:2008(E) 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.

Digitalton-Schnittstelle - Teil 1: Allgemeines

Interface audionumérique - Partie 1: Généralités

Digitalni zvokovni vmesnik - 1. del: Splošno (IEC 60958-1:2008)

General Information

• Status: Published
• Publication Date: 14-Oct-2008
• Withdrawal Date: 30-Sep-2011
• ICS: 33.160.01 - Audio, video and audiovisual systems in general
• Technical Committee: CLC/TC 100X - Audio, video and multimedia systems and equipment and related sub-systems
• Drafting Committee: IEC/TC 100 - IEC_TC_100
• Parallel Committee: IEC/TC 100 - IEC_TC_100
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 15-Oct-2008
• Completion Date: 15-Oct-2008
• Ref Project: SIST EN 60958-1:2008 - Digital audio interface - Part 1: General (IEC 60958-1:2008)

Relations

• Replaces: EN 60958-1:2004 - Digital audio interface - Part 1: General
• Effective Date: 29-Jan-2023
• Replaced By: EN IEC 60958-1:2021 - Digital audio interface - Part 1: General
• Effective Date: 23-Jan-2023
• Amended By: EN 60958-1:2008/A1:2014 - Digital audio interface - Part 1: General
• Effective Date: 29-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2008
1DGRPHãþD
SIST EN 60958-1:2006
Digitalni zvokovni vmesnik - 1. del: Splošno (IEC 60958-1:2008)
Digital audio interface - Part 1: General (IEC 60958-1:2008)
Digitalton-Schnittstelle - Teil 1: Allgemeines (IEC 60958-1:2008)
Interface audionumérique - Partie 1: Généralités (CEI 60958-1:2008)
Ta slovenski standard je istoveten z: EN 60958-1:2008
ICS:
33.160.30 Avdio sistemi Audio systems
35.200 Vmesniška in povezovalna Interface and interconnection
oprema equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 60958-1
NORME EUROPÉENNE
October 2008
EUROPÄISCHE NORM
ICS 33.160.01 Supersedes EN 60958-1:2004

English version
Digital audio interface -
Part 1: General
(IEC 60958-1:2008)
Interface audionumérique -  Digitalton-Schnittstelle -
Partie 1: Généralités Teil 1: Allgemeines
(CEI 60958-1:2008) (IEC 60958-1:2008)

This European Standard was approved by CENELEC on 2008-10-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60958-1:2008 E
Foreword
The text of document 100/1252/CDV, future edition 3 of IEC 60958-1, prepared by IEC TC 100, Audio,
video and multimedia systems and equipment, was submitted to the IEC-CENELEC parallel vote and was
approved by CENELEC as EN 60958-1 on 2008-10-01.
This European Standard supersedes EN 60958-1:2004.
It includes the following significant changes with respect to EN 60958-1:2004:
Electrical and optical requirements are removed from EN 60958-3; they are specified in EN 60958-1.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2009-07-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2011-10-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 60958-1:2008 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 60793-2 NOTE  Harmonized as EN 60793-2:2008 (not modified).
IEC 60794-2 NOTE  Harmonized as EN 60794-2:2003 (not modified).
IEC 60874-1 NOTE  Harmonized as EN 60874-1:2007 (not modified).
IEC 60958 NOTE  Harmonized in EN 60958 series (not modified).
IEC 61883-6 NOTE  Harmonized as EN 61883-6:2005 (not modified).
IEC 61937-1 NOTE  Harmonized as EN 61937-1:2007 (not modified).
IEC 61937-2 NOTE  Harmonized as EN 61937-2:2007 (not modified).
IEC 61937-3 NOTE  Harmonized as EN 61937-3:2003 (not modified).
IEC 61937-4 NOTE  Harmonized as EN 61937-4:2003 (not modified).
IEC 61937-5 NOTE  Harmonized as EN 61937-5:2006 (not modified).
IEC 61937-6 NOTE  Harmonized as EN 61937-6:2006 (not modified).
IEC 61937-7 NOTE  Harmonized as EN 61937-7:2005 (not modified).
IEC 61937-8 NOTE  Harmonized as EN 61937-8:2007 (not modified).
IEC 61937-9 NOTE  Harmonized as EN 61937-9:2007 (not modified).
IEC 62105 NOTE  Harmonized as EN 62105:2002 (not modified).
__________
- 3 - EN 60958-1:2008
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable 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.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

1) 2)
IEC 60268-11 - Sound system equipment - HD 483.11 S3 1993
Part 11: Application of connectors for the
interconnection of sound system components

1) 2)
IEC 60874-17 - Connectors for optical fibres and cables - EN 60874-17 1997
Part 17: Sectional specification for fibre optic
connector - Type F-05 (friction lock)

1) 2)
IEC 60958-3 - Digital audio interface - EN 60958-3 2006
Part 3: Consumer applications
1) 2)
IEC 60958-4 - Digital audio interface - EN 60958-4 2003
Part 4: Professional applications

1)
Undated reference.
2)
Valid edition at date of issue.

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 2-8318-1000-4
– 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 standardizati
...