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U盘、MP3 Player、MP4 Player EMC测试项目 J( U8 q5 f& {: o$ ^8 \% m
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该产品应满足的欧洲指令:89/336/EEC Electromagnetic Directive7 p; c/ A' @* a9 W0 h
参考标准有:* {" ~8 D6 {8 f! |+ M
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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$ c* b2 ~- o( d$ u H4 T0 v0 Y
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8 }" n& T6 l! m% c% S9 K, \产品按照标准测试具体项目如下:
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一、 EMI干扰部分测试项目
2 e* i' Y, Y( r) U参照标准 EN55022:1998+A1:2000+A2:2003
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1. Terminal voltage:150KHz~30MHz
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Frequency Range (MHz) Limits ( dBuV)
. d' D% {1 f# t% N9 b7 ] Quasi-Peak Average
* X8 K6 [' Z4 Y5 M8 g) E0.150~0.500 66~56 56~46
: L7 k6 k9 Q) L! f6 M0.500~5.000 56 46
; y# @2 }% o0 j5.000~30.00 60 50; G4 ?& F: E2 L* \2 s
$ _. c, N2 e, c2. Limit of Radiated Disturbances : 30MHz~1000MHz
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Frequency (MHz) Distance (Meters) Field Strengths Limits (dBV/m)9 S, {* j7 ?6 {0 [& m. ?
30 ~ 230 3 40
: z6 j& N- [7 U. T) d230 ~ 1000 3 47
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A- S8 ]' O& q4 A
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, w3 G+ J7 n% }: L% i. u二、 EMS抗干扰部分测试项目$ \1 t$ A; \6 X/ i0 s
参照标准EN55024:1998+A1:2001+A2:2003. r7 L) h# s3 j! L3 g1 r4 H1 B
) p+ j0 v3 `! N2 X7 k* H. v1. Electrostatic discharge:EN61000-4-2" a3 {$ ^9 C. d
Air discharge:8kv* T7 o- I: _2 b+ }- z/ j% [
Contact discharge:4kv0 h5 ?" z% V, t8 |. j
Performance criterion :B) u! g2 @! H) l) a* E2 n
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2. Radiated Susceptibility:IEC 61000-4-33 U! E. k) A+ X) w9 @, E
Frequency range:80MHz~1000MHz; 3v/m;1KHz AM 80%
9 c7 Z" V8 u# G* d4 @1 _5 A( oPerformance criterion :A
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3. Electrical fast transients: EN61000-4-4 L! s' ` H/ q: U3 p5 l
AC power ports:1KV; 5KHz
/ {5 k9 K5 Y% O5 ], U" i; `Performance criterion: B( k1 F2 J7 ]+ w6 t( @ Y D; J
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4. Surge: EN61000-4-5) U# [9 q9 ~& w) A! p
AC power ports:
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Phase to phase ±1kv ±1kv ±1kv ±1kv
: P) |7 S. r9 q% ]" l {( B3 yPhase to earth ±2kv ±2kv ±2kv ±2kv; A3 A) ^- g9 V
Performance criterion :B( N% A4 U' \/ ^( i
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5. Injected currents: EN61000-4-6
5 W) @- r+ m1 s# r( ^ AC power ports:150KHz~80MHz;3V;1KHz AM 80%
2 v* r, N# f" o, _. G! L Performance criterion :A
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4 e6 u1 v6 v7 h* p/ S6. Voltage dips and interruptions: EN61000-4-11$ N: f7 P O- k. h2 `9 ^' t8 b
Level U2 td Phase Angle N Pass' `8 {1 P/ o8 J4 I
1 100% 10ms 0/90/180/270 3 C
+ s; D; L1 _ W$ n; Q$ `: d. Q/ v$ u2 30% 1000ms 0/90/180/270 3 C
. k3 |/ |2 B( }& Z o( D2 z3 60% 200ms 0/90/180/270 3 C |
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