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S50
1.SCOPE:
This specification covers our product of dynamic Speaker unit for mobile telephone use.
2.MECHANICAL LAYOUT & DIMENSIONS:
Shown in Fig.3
3.SIZE: 50×H8
4.NET WEIGHT :
Approx. ±0.2g
5.SPEAKER ELECTRICAL AND ACOUSTICAL CHARACTERISTICS
5.1 SOUND PRESSURE LEVEL
85±3dB SPL @ 0.8,1.0,1.2,1.5KHz in average ( 0dB SPL=20μPa )
Measuring condition: 0.1W(sine wave) 0.1M measured with baffler shown in Fig.2
5.2 IMPEDANCE: 8±15%Ω ( @ 2KHz 1V )
5.3 DC Resistance: 7.4±15%Ω
5.4 MEASURING DIAGRAM : Shown in Fig.1
5.5 FREQUENCY RESPONSE MASK & TYPICAL FREQUENCY RESPONSE CURVE:
Shown in Fig.2
5.6 RATED POWER: 1.0W. MAX POWER: 1.5W.
5.7 RESONANCE FREQUENCY (Fo):450±20% @1V.(without baffler)
5.8 DISTORTION : Less then 10 % at 1kHz 0.1W.
5.9 AUDIBLE NOISE: Must be free audible noise 200～4kHz, Input level up to 2.83 Vrms.
5.10 FREQUENCY RANGE: Fo～ 20kHz resonant frequency down -10dB.
5.11 OPERATING TEMPERATURE:
-20℃ to +70℃
5.12 STORAGE TEMPERATURE:
-30℃ to +80℃
5.13 FRONT CLEARANCE:
keep clear of Speaker front by 0.0mm for undisturbed sound reproduction.:
-30℃ to +80℃
FREQUENCY MEASURING DIAGRAM ( SPEAKER MODE ) (Fig.1)
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Fig.1 Illustration of measuring diagram (speaker mode)
·FREQUENCY RESPONSE MASK & TYPICAL FREQUENCY RESPONSE CURVE
(SPEAKERMODE)(Fig.2)
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Fig.2 Frequency response mask & typical frequency response curse(speaker mode)
DIMENSIONS AND MATERIAL DATA(Fig.3)
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Fig.3
01.MATERIAL OF FRAME MF50-10
02.MATERIAL OF YOKE SPCC Plate
03.MATERIAL OF POLE PIECE SPCC
04.MATERIAL OF MAGNET NdFeB Zn Plated
05.MATERIAL OF CAP PBT
06.MATERIAL OF DIAPHRAGM Mylar PET
07.MATERIAL OF COIL COPPER WIRE (KSV)
08.MATERIAL OF WIRE NON
09.MATERIAL OF DUSTPROOF COTCH NON-WOVEN
10.MATERIAL OF SCREEN PORON
6.RELIABILITY TEST
The sound pressure as specified shall neither deviate more than ±3dB from the initial value, nor any significant damage after any of following testing.
6.1 LOAD TEST:
White noise (EIA filter) for 96hours @ 1.0W input power.
6.2 HUMIDITY TEST:
Temperature: +40±2℃ Relative Humidity: 90%～95%
Duration : 16 hours
6.3 HIGH TEMPERATURE TEST:
High Temperature: +70℃ Duration: 16 hours
6.4 LOW TEMPERATURE TEST:
Low Temperature: -30℃ Duration: 16 hours
6.5 DROP TEST:
Height: 1.5M
Cycle: 10 cycles(Onto the concrete board)
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6.6 HEAT SHOCK TEST:
High temperature : +70℃
Low temperature : -30℃
Changeover time: <30secends
Duration : 1 hour
Cycle : 5
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6.7 TEMPERATURE CYCLE TEST:
Temperature : -30℃ +70℃
Duration : 45 minutes
Temperature gradient: 1～3℃/minutes
Cycle: 5
