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U盘、MP3 Player、MP4 Player EMC测试项目* z6 M9 _0 P3 _3 o$ [: J
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该产品应满足的欧洲指令:89/336/EEC Electromagnetic Directive
! u3 Q4 h- a/ Z* L参考标准有:4 Q) x' V P. ]# e7 R
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EN 55022: Limits and methods of measurement of radio disturbance characteristics of information technology equipment
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EN 55024 Information technology equipment - Immunity characteristics - Limits and methods of measurement
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# D6 a4 l- J1 E' Q产品按照标准测试具体项目如下:; V# C& B0 ]9 j6 I$ c8 s
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一、 EMI干扰部分测试项目# a( ?8 x0 }4 m- H1 `. o
参照标准 EN55022:1998+A1:2000+A2:2003
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1. Terminal voltage:150KHz~30MHz
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' {' l T) X& P) ZFrequency Range (MHz) Limits ( dBuV)
0 D/ i! R. P F5 ^7 ^* j/ u0 R Quasi-Peak Average
2 p" p. B- h& `; E+ U3 r0.150~0.500 66~56 56~46# a( \4 b* d \% W- z) F l
0.500~5.000 56 46 g+ L+ [$ A( [3 M
5.000~30.00 60 50
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2. Limit of Radiated Disturbances : 30MHz~1000MHz2 e% U6 }0 T/ B5 Z2 s' h% V6 h s
5 w! \8 @9 D% @Frequency (MHz) Distance (Meters) Field Strengths Limits (dBV/m)
/ K! n/ Z/ H! Q6 ]30 ~ 230 3 40/ c+ u9 P: S* |5 A! \2 X
230 ~ 1000 3 47
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1 K* C. c7 {5 ~) k' a, f% b二、 EMS抗干扰部分测试项目- G6 @0 p: R1 l% Q9 W+ h6 H% J
参照标准EN55024:1998+A1:2001+A2:2003
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1. Electrostatic discharge:EN61000-4-27 r6 l8 h: O$ a; G' L
Air discharge:8kv
* `1 _! e0 n1 l+ [, A8 nContact discharge:4kv
b& D# o8 d3 f0 {& zPerformance criterion :B- O# v3 V" @& B6 s- F$ y
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2. Radiated Susceptibility:IEC 61000-4-3
- ^9 y: F; Z) ]: k1 V% \Frequency range:80MHz~1000MHz; 3v/m;1KHz AM 80%! d& N Z+ I% x& [4 e) h: a+ n
Performance criterion :A1 ^3 b' i0 s- ~. ^% O9 }2 ]. b; k1 [
! E9 h/ L$ y' D8 v- {6 R- e3. Electrical fast transients: EN61000-4-4
5 {4 F) ?9 V# JAC power ports:1KV; 5KHz
) m' v- u" M# {5 ?Performance criterion: B$ d7 H( M" X; T% `2 o6 d7 E4 s; z
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4. Surge: EN61000-4-55 I. o! Y2 Q/ N3 X4 |# d) [
AC power ports:+ U, ~" h3 x9 I; `! E z
0 90 180 270
* a" k( s- Y, _; b9 WPhase to phase ±1kv ±1kv ±1kv ±1kv8 i2 J& f" b' |4 n
Phase to earth ±2kv ±2kv ±2kv ±2kv
: Y/ Z0 y/ B# N$ V9 b, g& R C Performance criterion :B+ m3 P4 r% c6 I3 w1 p
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5. Injected currents: EN61000-4-6
! ~$ M7 K1 l: H AC power ports:150KHz~80MHz;3V;1KHz AM 80%$ Y! B/ G% T% J3 ?0 r8 o
Performance criterion :A) t$ V3 C6 d) A; C
( N0 V( Q, N2 r! h7 b1 r6. Voltage dips and interruptions: EN61000-4-11: S0 \5 e2 \( F% z8 A" M
Level U2 td Phase Angle N Pass; R$ h- P( T0 V3 F4 w
1 100% 10ms 0/90/180/270 3 C5 Y+ h; Y! B9 X: r
2 30% 1000ms 0/90/180/270 3 C7 W& b# M# H# f4 l7 H
3 60% 200ms 0/90/180/270 3 C |
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