International Standards and Conformity Assessment for all electrical, electronic and related technologies

CLC/SR 100

Audio, video and multimedia systems and equipment



Reference EN 61937-3:2009
Title Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 - Part 3: Non-linear PCM bitstreams according to the AC-3 and enhanced AC-3 formats
Project Number 21133
Abstract/Scope It describes the method used to convey non-linear PCM bitstreams encoded according to the AC-3 and enhanced AC-3 formats.c) It contains the following significant technical changes with respect to the previous edition: The definition of the audio data-burst required to deliver enhanced AC-3 bitstreams has been added. The definition of the latency of an enhanced AC-3 decoder has been added. The use of pause data-bursts when delivering enhanced AC-3 bitstreams has been added.


Current Stage code 6060
Current Stage code date 2009-08-13
Current Stage code deadline 2010-04-01
Deadline date for vote  


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IEC Technical Body IEC/TC 100
Reference Document IEC 61937-3:2007 (EQV)
ICS 33.160.30 - Audio systems
Keywords Digital; Audio; Bitstream; Non-linear
Note Superseded by EN 61937-3:2003
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2009-08-13 2010-04-01 export to doc file  EN  FR  DE
5099 2009-07-01 2009-09-01  
5061 2009-05-27 2009-07-01  
5060 2007-09-21 2007-10-11 export to doc file  EN
5020 2007-02-02 2007-07-06  
1090 2007-01-30 2007-02-02  

Implementation Dates

date of Ratification (DOR) (1) 2009-07-01
date of Availability (DAV) (2) 2009-08-13
date of Announcement (DOA) (3) 2009-10-01
date of Publication (DOP) (4) 2010-04-01
date of Withdrawal (DOW) (5) 2012-07-01


Supersedes EN 61937-3:2003
Superseded by  
Normative reference (6) ETSI TS 102 366
ATSC A/52B:2001
EN 60958-1:2008
EN 61937-1:2007
EN 61937-2:2007

(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved

(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat

(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level

(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement

(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn

(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.