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U盘、MP3 Player、MP4 Player EMC测试项目
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2 v& |3 o9 u/ T7 |该产品应满足的欧洲指令:89/336/EEC Electromagnetic Directive; a1 m/ p4 J9 y
参考标准有:
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# o9 H" E, J- L. h" sEN 55022: Limits and methods of measurement of radio disturbance characteristics of information technology equipment ) R8 _, o5 M' K/ j$ l
7 W U u" M* E3 n& V0 Z# iEN 55024 Information technology equipment - Immunity characteristics - Limits and methods of measurement
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, i$ }- d* k8 j$ r' k) q/ m9 Y产品按照标准测试具体项目如下:( B7 F: @! o6 C% x. t
5 Q$ \) [3 N- m* S1 _, k一、 EMI干扰部分测试项目
' v1 ~ Q" @' n& t" v' [2 h# X6 ~参照标准 EN55022:1998+A1:2000+A2:2003
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, \4 O! g1 x. m6 S1. Terminal voltage:150KHz~30MHz) d4 t2 N' ]8 ^& q: f7 j" H
% x" }3 v2 f3 g$ x8 U% AFrequency Range (MHz) Limits ( dBuV)
( h( ^/ }4 o8 k- J Quasi-Peak Average
; ^5 i3 O6 e) n0 @- L0.150~0.500 66~56 56~46$ ~% \/ i5 e9 ?6 g; ^) K
0.500~5.000 56 46$ \5 R# e! u! k9 n% H
5.000~30.00 60 50
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" j) x+ {9 G8 Z8 A1 k) l. k) Y2. Limit of Radiated Disturbances : 30MHz~1000MHz' d1 ~, |+ }: x4 h
S: M% _& Q: C" j' ^ zFrequency (MHz) Distance (Meters) Field Strengths Limits (dBV/m)
" j1 k6 @+ _/ F- W# `5 I7 i: H30 ~ 230 3 40) F1 M; E+ A0 Y$ Q$ \% E
230 ~ 1000 3 47
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8 t N6 J" o% c, r: c* g6 N二、 EMS抗干扰部分测试项目. }0 W$ O4 a% g
参照标准EN55024:1998+A1:2001+A2:2003+ \( G' E, ?% h2 P
* H+ b1 O/ r% ~# ~: x5 ~, o; D1. Electrostatic discharge:EN61000-4-20 \5 i/ U7 U' E9 C2 r3 P
Air discharge:8kv
" E$ H0 G7 O" m% e3 j) b! jContact discharge:4kv& M& K Q6 l9 [6 B3 J/ e- S4 U
Performance criterion :B
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2. Radiated Susceptibility:IEC 61000-4-3
" J+ t& G7 ^! w4 {7 N* oFrequency range:80MHz~1000MHz; 3v/m;1KHz AM 80%
- f/ e J r6 VPerformance criterion :A
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3. Electrical fast transients: EN61000-4-4
; s7 m' [2 u5 H8 i& H2 J( q# VAC power ports:1KV; 5KHz8 m8 A ?% h; Q7 w# w$ Q, M6 ?
Performance criterion: B) P1 i- z! S, G- ]" p4 u- f) W! q1 e
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4. Surge: EN61000-4-5
* z% w- Q$ V! t# k4 w AC power ports:4 I% t# x$ d8 T; P1 I
0 90 180 2700 `2 @! k0 G- ?3 O7 n# n
Phase to phase ±1kv ±1kv ±1kv ±1kv9 @# E" O+ I z* u: z8 J
Phase to earth ±2kv ±2kv ±2kv ±2kv( o. j+ O! X. l/ X! ~7 }
Performance criterion :B
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5. Injected currents: EN61000-4-6
, t- w7 v' b+ V6 |# Y AC power ports:150KHz~80MHz;3V;1KHz AM 80%
, w& j( h* e( L+ q Performance criterion :A* U( {( X' f+ Q+ s- \0 X
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6. Voltage dips and interruptions: EN61000-4-11
. J3 s9 c& {9 S4 j. V4 KLevel U2 td Phase Angle N Pass
+ F: [9 W# w! w2 d) m" q: Z6 n9 X1 100% 10ms 0/90/180/270 3 C
* A+ H& S4 D' y5 L/ I2 30% 1000ms 0/90/180/270 3 C
6 A! q ?+ F6 b+ o3 60% 200ms 0/90/180/270 3 C |
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