1、 IEC 62753 Edition 1.0 2015-06 INTER NA TIONA L STA NDA R D Digital terrestrial television receivers for the DTMB system IEC 62753:2015-06(en)Copyright International Electrotechnical Commission THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2015 IEC,Geneva,Switzerland All r ights r eserved.Unless
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11、 for the DTMB system INTER NA TIONAL ELECTROTECHNICAL COMMISSION ICS 33.160;33.170 ISBN 978-2-8322-2696-4 Registered t rademark of t he Int ernational Electrot echnical Commission W arning!Make sure that you obtained this publication from an authorized distributor.Copyright International Electrotech
12、nical Commission 2 IEC 62753:2015 IEC 2015 CONTENTS FOREWORD.7 INTRODUCTION.9 1 Scope.10 2 Normative ref erences.10 3 Abbreviations and symbols.10 4 Summary of DTMB transmission system.12 4.1 General.12 4.2 Processing of DTMB transmitter.12 4.3 Processing of DTMB receiver.13 5 Receiver capabilities.
13、13 5.1 Frequency spectrum.13 5.1.1 Frequency range.13 5.1.2 Channel bandwidth.13 5.1.3 Frequency acquisition range.13 5.2 Power supply requirements.13 5.3 Interf ace requirements.13 5.4 Working modes.14 5.5 Program search and tuning.14 5.5.1 General.14 5.5.2 Receive quality display.14 5.5.3 Automati
14、c search.15 5.5.4 Manual search.15 5.5.5 Modulation parameters change.15 5.6 Demultiplex characteristics.15 5.6.1 General.15 5.6.2 TS data rate.15 5.6.3 STC recovery.15 5.6.4 Error control.15 5.6.5 PID f ilters.15 5.6.6 Multi-component programs.15 5.7 Transport stream decoding characteristics.16 5.7
15、.1 Service and program inf ormation.16 5.7.2 EPG.18 5.7.3 Presentation of subtitle.18 5.8 Function requirements.18 5.8.1 General.18 5.8.2 Sof tware version update.19 5.8.3 Chinese graphical operation interf ace.19 5.8.4 Service list.19 5.8.5 Status bar.20 5.8.6 User parameter settings and storage.20
16、 5.8.7 Power f ailure memory.20 5.8.8 Restore f actory settings.21 5.8.9 Real time clock.21 6 Video and audio system characteristics.21 Copyright International Electrotechnical Commission IEC 62753:2015 IEC 2015 3 6.1 Video system characteristics.21 6.1.1 General.21 6.1.2 Fast acquisition.21 6.1.3 Still images.21 6.1.4 Baseband video input f ormat.21 6.2 Audio system characteristics.22 7 RF part and channel decoder.22 7.1 RF port.22 7.1.1 RF input port.22 7.1.2 RF loop output port.22 7.2 Perf or
