EN50248-2001_Characteristic_of_DAB_receivers

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EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORM

ICS 33.160.20

EN 50248

August 2001

Supersedes EN 50248:1997

English version

Characteristics of DAB receivers

Caractéristiques du récepteur DAB

Eigenschaften von DAB-Empfängern

This European Standard was approved by CENELEC on 2000-08-01. CENELEC members are bound tocomply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving thisEuropean Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained onapplication to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in anyother language made by translation under the responsibility of a CENELEC member into its ownlanguage and notified to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway,Portugal, Spain, Sweden, Switzerland and United Kingdom.

CENELEC

European Committee for Electrotechnical StandardizationComité Européen de Normalisation ElectrotechniqueEuropäisches Komitee für Elektrotechnische NormungCentral Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2001 CENELEC -All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 50248:2001 E

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EN 50248:2001- 2 -

Foreword

This European Standard was prepared by the Technical Committee CENELEC TC 206, Consumerequipment for entertainment and information and related sub-systems.

The text of the draft was submitted to the Unique Acceptance Procedure and was approved byCENELEC as EN 50248 on 2000-08-01.

This European Standard supersedes EN 50248:1997.The following dates were fixed:

–latest date by which the EN has to be implementedat national level by publication of an identicalnational standard or by endorsement–latest date by which the national standards conflictingwith the EN have to be withdrawn

(dop)2002-02-01

(dow)2003-08-01

Annexes designated "normative" are part of the body of the standard. Annexes designated "informative"are given for information only. In this standard annexes A and C are informative and annex B isnormative.

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- 3 -EN 50248:2001

Contents

1234

Scope......................................................................................................................4Normative references...............................................................................................4Terms and definitions...............................................................................................5Basic implementation and functional performance requirements..................................54.14.24.34.44.54.64.74.84.94.105

Audio decoder.................................................................................................5Automatic mode selection.................................................................................7Frequency bands.............................................................................................7Service selection.............................................................................................7Receiver reactions to a multiplex re-configuration..............................................8Automatic switching to another ensemble..........................................................8Response to conditional access (CA) services...................................................8Output for audio and other services...................................................................8Transparency for copy protection......................................................................9Coding profiles (Minimum implementation of specified coding profiles)...............9

Interfaces................................................................................................................95.15.25.35.45.55.65.7

General...........................................................................................................9RF input..........................................................................................................9Analogue audio interface [EN 61938]..............................................................9Digital audio interface [IEC 60958-3]...............................................................9Coded audio interface [IEC 61937]....................................................................9General digital interface (F in Figure 1)..........................................................10Conditional access interface...........................................................................10

6Options..................................................................................................................106.16.26.3

General.........................................................................................................10Receiver display............................................................................................10Other features...............................................................................................10

7Minimum performance levels and measuring methods..............................................11

7.1General conditions.........................................................................................117.2Audio part - Performance requirements...........................................................117.3R.F. p …… 此处隐藏：27525字，全部文档内容请下载后查看。喜欢就下载吧 ……