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GB/T 26272-2010 English PDF

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GB/T 26272-2010: Basic performance requirements and test method of terrestrial digital television tuner
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PDF similar to GB/T 26272-2010


Standard similar to GB/T 26272-2010

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Basic data

Standard ID GB/T 26272-2010 (GB/T26272-2010)
Description (Translated English) Basic performance requirements and test method of terrestrial digital television tuner
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard M74
Classification of International Standard 33.160.25
Word Count Estimation 17,196
Date of Issue 2011-01-14
Date of Implementation 2011-06-01
Quoted Standard GB 20600-2006; SJ/T 11324-2006; SJ/T 11327-2006
Regulation (derived from) National Standard Approval Announcement 2011 No.38
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the terrestrial digital TV reception equipment VHF/UHF (VHF/UHF) electronic tuner basic performance requirements and methods of measurement. This standard applies to terrestrial digital television reception equipment VHF/UHF (VHF/UHF) electronic tuner with IF output.

GB/T 26272-2010: Basic performance requirements and test method of terrestrial digital television tuner


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Basic performance requirements and test method of terristrial digital television tuner ICS 33.160.25 M74 National Standards of People's Republic of China Terrestrial digital TV tuner The basic performance requirements and methods of measurement Issued on. 2011-01-14 2011-06-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Introduction Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions, abbreviations 1 3.1 Terms and definitions 3.2 Abbreviations 1

4 technical requirements

4.1 Exterior structural requirements 1 4.2 Work environment requirements 1 4.3 Basic design requirements 2 4.4 Performance Requirements 2 5 Measurement 3 5.1 General Note 3 5.2 reception frequency range 4 5.3 5 cover margin 5.4 Frequency Characteristics 5 5.5 5 Total power gain 5.6 power gain difference 6 5.7 RF.AGC control 6 5.8 IF.AGC control 6 5.9 Noise Figure 7 5.10 The maximum input signal level 7 Image rejection ratio 8 5.11 5.12 crosstalk rejection ratio modulation 8 5.13 9 Phase Noise 5.14 input return loss 9 5.15 ring through second order intermodulation characteristics 9 5.16 ring through third-order intermodulation characteristics 10 Appendix A (informative) Table of Frequency Allocations 11 TV channels

Foreword

Appendix A of this standard is an informative annex. The standard proposed by the People's Republic of China Ministry of Industry and Information Technology. This standard by the national audio, video and multimedia systems and equipment Standardization Technical Committee centralized. This standard drafting units. China Electronics Standardization Institute, Chengdu Xuguang Technology Co., Ltd., Chongqing-good Electronics Co., Secretary, Suzhou Victory Technology Co., Kohl, Wuxi Electronics Co., Ltd., Jiangsu Yinhe Electronics Co., Ltd., Tsinghua University, Matsushita Electric Is the research and development (China) Limited. The main drafters. Zhang Subing, Chenren Wei, Hu Peng, Liang Xiaobing, Bobing policy, Zhao Chang, Discussion about the Agent, Shangguan Qingyuan, Pan Changyong, Ann. Terrestrial digital TV tuner The basic performance requirements and methods of measurement

1 Scope

This standard specifies the digital terrestrial TV reception equipment VHF/UHF (VHF/UHF) electronic tuner basic performance requirements And methods of measurement. This standard applies to digital terrestrial TV reception equipment VHF/UHF (VHF/UHF) electronic transfer having an intermediate frequency output Tuner.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB 20600-2006 digital television terrestrial broadcasting system frame structure, channel coding and modulation SJ/T 11324-2006 digital television receivers term SJ/T 11327-2006 digital television receiving equipment interface specification - Part 1. RF signal interface 3 Terms and definitions, abbreviations 3.1 Terms and Definitions Terms and definitions SJ/T 11324-2006 defined apply to this standard. 3.2 Acronyms AGC --- AGC (AutomaticGainControl) IF --- IF (IntermediateFrequency) IF.AGC --- IF automatic gain control terminal (IntermediateFrequencyAutomaticGainControl) IF.OUT --- IF output terminal (IntermediateFrequencyOutput) RF --- radio frequency (RadioFrequency) RF.AGC --- RF AGC terminal (RadioFrequencyAutomaticGainControl) RF.IN --- RF input (RadioFrequencyInput) RF.LOOP --- RF loop output terminal (RadioFrequencyLoopOutput) UHF --- ultra-high frequency (UltraHighFrequency) VHF --- UHF (VeryHighFrequency) 4. Technical Requirements 4.1 Exterior structural requirements Tuners should look clean, there should be no uneven surface marks, scratches, cracks, burrs, mildew and other defects, surface coating thickness should not blistering, cracking, Shedding. Tuner no loose metal parts should be tightened, there should be no rust and other mechanical damage, perfusion was not spill. Description Function text and graphic symbols shall be marked correct, clear, correct, firm indication should be correct. 4.2 Work environment requirements Ambient temperature. 0 ℃ ~ 40 ℃;

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