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U盘、MP3 Player、MP4 Player EMC测试项目& G- l. [% [1 a9 i3 H! o
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该产品应满足的欧洲指令:89/336/EEC Electromagnetic Directive3 @6 Y( a+ M! d- x
参考标准有:, l4 s9 p! V$ o" a, @6 W. I! `
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EN 55022: Limits and methods of measurement of radio disturbance characteristics of information technology equipment , ^% o! `5 n0 `% D7 I* d
5 A8 a* u9 D& R! ^- DEN 55024 Information technology equipment - Immunity characteristics - Limits and methods of measurement
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5 Y. y! ]& Q7 y: w& m/ [. t产品按照标准测试具体项目如下:$ [# x3 C3 R$ I
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一、 EMI干扰部分测试项目- R; q+ T6 b) ^0 }* b, g
参照标准 EN55022:1998+A1:2000+A2:2003, Q- l3 A0 P% n, B3 W, |* r
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' Z6 v8 c4 R2 e7 H$ g1. Terminal voltage:150KHz~30MHz
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Frequency Range (MHz) Limits ( dBuV)
) m# P/ c" f' i1 r Quasi-Peak Average
" z1 l) V+ X" }1 n0.150~0.500 66~56 56~46
) U P# B L5 H. W( _0.500~5.000 56 46
P+ Z7 N" L0 t& w5.000~30.00 60 50
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2. Limit of Radiated Disturbances : 30MHz~1000MHz
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w0 F0 H1 B. M, P+ S0 `! Q' jFrequency (MHz) Distance (Meters) Field Strengths Limits (dBV/m)
! o. c$ C& T Z; r30 ~ 230 3 40% Y3 Y V5 X3 Y
230 ~ 1000 3 47 k3 Y/ \7 ?! M2 l2 H7 M1 O) T
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) H5 x$ @3 X! E6 B二、 EMS抗干扰部分测试项目
5 K9 y8 J% z+ K参照标准EN55024:1998+A1:2001+A2:2003
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1. Electrostatic discharge:EN61000-4-2
; @ }* F' `9 U6 {. t! {Air discharge:8kv( Y3 J3 r% V7 H4 X( s. M
Contact discharge:4kv7 W+ h& P( T0 \2 s' z6 i
Performance criterion :B2 I: G- o) a# |7 o; ]% b
' k. d% S, z0 ^5 ]+ M$ V) x2. Radiated Susceptibility:IEC 61000-4-3
' I3 G! Q- O( xFrequency range:80MHz~1000MHz; 3v/m;1KHz AM 80%% X6 M1 [: p5 R0 D
Performance criterion :A D0 N C$ O7 Z4 t: D. D
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3. Electrical fast transients: EN61000-4-4
( V' k+ W# S- W& |' x8 qAC power ports:1KV; 5KHz
% O3 K( D% \( p6 H" yPerformance criterion: B
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4. Surge: EN61000-4-5
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Phase to phase ±1kv ±1kv ±1kv ±1kv5 q# ?. t3 [* b+ I# X1 |3 N2 r% l
Phase to earth ±2kv ±2kv ±2kv ±2kv
7 \, n# E8 h# c/ ?+ K Performance criterion :B
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4 `6 e# V& W* i5 X! I0 Z5. Injected currents: EN61000-4-6
5 i1 r8 h7 x* G" O9 w5 ~ AC power ports:150KHz~80MHz;3V;1KHz AM 80%
U" g7 H: c8 J- v( e3 p: J Performance criterion :A
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6. Voltage dips and interruptions: EN61000-4-11
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1 100% 10ms 0/90/180/270 3 C* V' n$ _4 V0 A4 R0 u4 E
2 30% 1000ms 0/90/180/270 3 C2 I# i: A5 H0 F9 Y& } m
3 60% 200ms 0/90/180/270 3 C |
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