SPECIFICATION FOR APPROVAL Customer： Description： Micro Speaker Sob erton Part No. ： SP-1304 Date：2012-07-31 Customer Model No. ： Date of Approval Authorization Signature 211 N. First Street Minneapolis, MN. 55401 612-849-6205 Http://www.sob erton.com E-mail： info@sob erton.com Approved Checked Design Ryan Andy Gary 2012/07/31 2012/07/31 2012/07/31 MODEL NUMBER CUSTOMER PRODUCT NUMBER TYPE REVERSION DATE PAGE 00 12-07-31 1/5 SPEAKER SP-1304 1．SCOPE This specification covers our product of dynamic speaker unit for mobile telephone use. 2．MECHANICAL LAYOUT&DIMENSIONS: Shown in page3/5 3．GENERAL REQUIREMENTS： 3.1 OPERATING TEMPERATURE RANGE：-20℃~+55℃ 3.2 STANDARD TEST CONDITIONS： Temperature: 17℃~25℃ Relative Humidity: 45%~80%(RH) 3.3 JUDGEMENT CONDITIONS: Temperature: 20±2℃ Relative Humidity: 60%~70%(RH) 4．ELECTROACOUSTIC CHARACTERISTICS 4.1.1 TEST SET UP：Measuring conditions and procedures shown in fig(2) 4.1.2 IMPEDANCE：8±15%Ω(@2KHz 1V) without baffler. 4.1.3 DC RESISTANCE：7.4±10%Ω 4.1.4 SOUND PRESSURE LEVEL 82±3dB SPL @1.0.1.2,1.5and2.0KHz in average (0dB SPL=20μPa) Measuring condition: 0.1W (Sine wave) 10cm measured with baffler shown in Fig.1. 4.1.5 FREQUENCYRESPONSE CURVE ：As shown in fig(3) 4.1.6 RESPONSE FREQUENCY: 1300±20%Hz @ 1V. (Without Baffler) 4.1.7 INPUT POWER (NOM./MAX.)： 0.5W /0.8W must be normal at a white noise (1W,F0-20KHz) for one minute 4.1.8 AUDIBLE NOISE： Must be free audible noise (buzzes and rattles)(300 ∼ 8KHz frequency range ,input level up to 2.0Vrms) 4.1.9 DISTORTION: Less than 10% @1KHz,0.1M,0.8W frequency range ,input level up to 2.53Vrms) N0 REVISION UPDATE DEPICT DATE FACTURE CHECK APPROVED MODEL NUMBER CUSTOMER PRODUCT NUMBER TYPE SPEAKER SP-1304 REVERSION DATE PAGE 00 12-07-31 2/5 5. RELIABILITY TESTS： The sound pressure as specified shall neither deviate more than ±3dB form the initial value, nor any significant damage after any of following testing. 5.1 HIGH TEMPERATURE TEST: High temperature: +70±2℃ Duration: 96 hours 5.2 LOW TEMPERATURE TEST: Low temperature: -40±2℃ Duration: 96 hour 5.3 HEAT SHOCK TEST： High temperature: Low temperature: Changeover time: Duration: Cycle: +70±2℃ -40±2℃ <30 seconds 1 hours 100 5.4 HUMIDITY TEST: Temperature: Relative Humidity: Duration: + 40±2℃ 90%~95% 96 hour 5.5 TEMPERATURE CYCLE TEST: Temperature: -40℃ Duration: 45 minutes Temperature gradient: 1~3℃/min Cycle: 25 +70℃ 45 minutes 5.6 DROP TEST: Mounted with dummy set mass: 100 g Height: 1.5 m Cycle: 6(1 each plain) Onto the concrete board 5.7 LOAD TEST: Speaker mode: white noise(EIA filter)for 96 [email protected] input power. N0 REVISION UPDATE DEPICT DATE FACTURE CHECK APPROVED MODEL NUMBER CUSTOMER PRODUCT NUMBER TYPE REVERSION DATE PAGE 00 12-07-31 3/5 SPEAKER SP-1304 6.MEASURING METHOD(SPEAKER MODE) 6-1 .Test Condition STANDARD Temperature : 15 ~ 35℃ Relative humidity : 45% ~ 85%, Atmospheric pressure : 860mbar to 1060mbar. JUDGEMENT Temperature : 20±3℃ Relative humidity : 60% ~ 70%, Atmospheric pressure : 860mbar to 1060mbar 6-2 . Standard Test Fixture 1.Input Power : 0.1W(0.89V) 2.Zero Level : -dB 3.Mode : TSR 4.potentiometer Range : 50dB 5.Sweep Time : 0.5sec Standard test condition of speaker Power Amplifier Microphone 318 Speaker Audio Analyzer N0 REVISION UPDATE DEPICT 6125y DATE FACTURE CHECK APPROVED MODEL NUMBER SP-1304 CUSTOMER PRODUCT NUMBER TYPE SPEAKER REVERSION DATE PAGE 00 12-07-31 5/5 8.DIMENSIONS Unless otherwise specified,tolerance:±0.5 (unit: mm) N0 REVISION UPDATE DEPICT DATE FACTURE CHECK APPROVED