IEC 62104:2015
(Main)Characteristics of DAB receivers
Characteristics of DAB receivers
IEC 62104:2015(E) describes the digital audio broadcasting (DAB) receiver characteristics for consumer equipment intended for terrestrial and cable reception operating in VHF band III. Dedicated receivers for specific applications are not within the scope of this standard. This standard describes the characteristics for different classes and categories of DAB receivers such as standard and multimedia receivers and domestic, automotive and adapter receivers. This third edition cancels and replaces the second edition published in 2003. This edition constitutes a technical revision. The main changes with respect to the previous edition are as follows. The document has been updated in line with the development of the DAB system, and in particular the introduction of DAB audio services (see ETSI TS 102 563). Requirements for displays, text and data applications have been introduced to reflect market trends. Additional test methods have been introduced to allow R.F. measurements to be made on receivers with integrated antennas and/or no external BER indicators by using an acoustic impairment method. Clause 6 has been updated to reflect the development of the market and to provide better guidance for the implementation of optional features.
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IEC 62104 ®
Edition 3.0 2015-07
INTERNATIONAL
STANDARD
Characteristics of DAB receivers
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IEC 62104 ®
Edition 3.0 2015-07
INTERNATIONAL
STANDARD
Characteristics of DAB receivers
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.060.20 ISBN 978-2-8322-2812-8
– 2 – IEC 62104:2015 © IEC 2015
CONTENTS
FOREWORD . 6
1 Scope . 8
2 Normative references. 8
3 Terms and definitions . 10
4 Basic implementation and functional performance requirements . 13
4.1 Automatic mode selection . 13
4.1.1 General . 13
4.1.2 Requirements . 13
4.2 Frequency bands . 13
4.3 Channel decoder . 13
4.3.1 Standard receiver . 13
4.3.2 Multimedia receiver . 13
4.4 Service selection . 13
4.4.1 General . 13
4.4.2 Requirements . 14
4.5 Receiver reactions to a multiplex reconfiguration . 14
4.6 Audio decoder . 14
4.6.1 General . 14
4.6.2 DAB services . 15
4.6.3 DAB+ services . 15
4.7 Automatic switching to another ensemble . 15
4.8 Response to conditional access (CA) services . 15
4.8.1 General . 15
4.8.2 Requirements for DAB receivers without CA capabilities . 15
4.9 Output for audio and other services . 15
4.9.1 General . 15
4.9.2 Requirements . 16
4.10 Display . 16
4.10.1 Standard receiver . 16
4.10.2 Multimedia receiver . 16
4.11 Text labels . 16
4.11.1 Standard receiver . 16
4.11.2 Multimedia receiver . 16
4.12 Data applications . 17
4.12.1 Standard receiver . 17
4.12.2 Multimedia receiver . 17
5 Interfaces . 17
5.1 General . 17
5.2 RF input . 17
5.2.1 General . 17
5.2.2 Domestic and portable receivers . 17
5.2.3 Automotive receivers . 18
5.3 Analogue audio interface (see IEC 61938) . 19
5.4 Digital audio interface (see IEC 60958-3) . 19
6 Options . 19
6.1 General . 19
6.2 Service lists . 19
6.3 Display . 20
6.3.1 General . 20
6.3.2 Service labels and service component labels . 20
6.3.3 Dynamic label . 20
6.3.4 Signal quality indicator . 20
6.3.5 Audio coding information . 20
6.4 Other receiver features . 21
6.4.1 Time and date . 21
6.4.2 Service following . 21
6.4.3 Announcements . 21
6.4.4 Dynamic range control (DRC) . 21
6.5 Data features . 21
6.5.1 Journaline . 21
6.5.2 Broadcast website (BWS) . 22
6.5.3 TPEG services . 22
7 Minimum performance levels and measuring methods . 22
7.1 General conditions . 22
7.1.1 General – Published specifications for receivers . 22
7.1.2 Power supply . 22
7.1.3 Atmospheric conditions . 22
7.1.4 BER measurement conditions . 22
7.1.5 Acoustic onset of impairment (OOI) measurement conditions . 23
7.1.6 DAB signal . 23
7.1.7 Receiver classification . 23
7.2 Audio part – Performance requirements . 24
7.2.1 General . 24
7.2.2 DAB services . 24
7.2.3 DAB+ services . 24
7.3 RF part – Sensitivity test methods . 24
7.3.1 General . 24
7.3.2 Baseband stream and RF conditions for BER and OOI testing . 24
7.3.3 Baseband stream and listening conditions for acoustic OOI testing . 24
7.4 Sensitivity requirement using a conducted signal at node “A” . 25
7.4.1 General . 25
7.4.2 Method of measurement (Gaussian channel) using BER . 25
7.4.3 Presentation of results using BER . 25
7.4.4 Requirements – Receiver types A2, C2, D, E2 using BER . 26
7.4.5 Method of measurement (Gaussian channel) using acoustic OOI . 26
7.4.6 Presentation of results using acoustic OOI . 26
7.4.7 Requirements – Receiver types A2, C2, D, E2 using acoustic OOI . 26
7.5 Sensitivity using radiated electromagnetic wave at node "N" . 27
7.5.1 General . 27
7.5.2 Link budget transmission assumption – Non-automotive receivers . 27
7.5.3 Method of measurement – Non-automotive types A1, B, C1. C2 and A2
with optional antenna . 27
7.5.4 Presentation of results . 29
7.5.5 Requirements – Types A1, B, C1, C2 and A2 with optional antenna . 29
7.5.6 Link budget transmission assumption – Automotive types D, E1, E2 . 29
– 4 – IEC 62104:2015 © IEC 2015
7.6 RF part – Maximum input power . 29
7.6.1 General . 29
7.6.2 Method of measurement (Gaussian channel) . 29
7.6.3 Presentatio
...
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