2403 263 00077 SPEAKER-16-4.7-MFD 2403 263 00077 Change History Status Version Date ECR Comment / Changes Initials of owner Draft A1 18.02.08 Draft specification for first samples MW Draft A2 02.03.09 Draft specification for first samples HW Draft A3 15.05.09 Draft specification for samples HW Release A 15.10.09 First released Version HW/AH Release B 07.12.09 Dimension update HW/AH Release Release C 27.01.10 Spring Force added HW D 15.02.10 Main tolerance and Handling Force update HW 2818 . page 2 of 22 2403 263 00077 Contents 1. Mechanical Characteristics ..................................................................................................... 4 1.1. Main Dimensions ............................................................................................................. 4 1.2. Contact Layout ................................................................................................................ 5 1.3. Contact Force .................................................................................................................. 5 1.4. Print Code ........................................................................................................................ 6 1.5. Forces on Component ..................................................................................................... 7 1.6. Material List ..................................................................................................................... 8 2. Electro-Acoustic Characteristics ............................................................................................. 9 2.1. Frequency response ........................................................................................................ 9 2.2. Electro-Acoustic Parameters ......................................................................................... 10 2.3. Power Handling ............................................................................................................. 10 2.4. Measurement Setup (acoustics) .................................................................................... 11 2.5. Measured Parameters ................................................................................................... 11 2.6. Vibra Parameters ........................................................................................................... 12 2.7. Measurement setup (Vibra Function) ............................................................................ 13 2.8. Measured Parameters (Vibra Function) ......................................................................... 13 2.9. Measurement adapter.................................................................................................... 14 3. Environmental Conditions ..................................................................................................... 15 3.1. Storage .......................................................................................................................... 15 3.2. Transportation ............................................................................................................... 15 3.3. Functionality .................................................................................................................. 15 4. Environmental Tests ............................................................................................................. 16 Qualification Tests .................................................................................................................... 16 Requalification Tests ................................................................................................................ 16 Sample Size, Sequence ........................................................................................................... 16 Period of Shelf-Life ................................................................................................................... 16 Testing Procedures .................................................................................................................. 16 5. Related Documents .............................................................................................................. 20 page 3 of 22 2403 263 00077 1. Mechanical Characteristics 1.1. Main Dimensions This product is non-automotive qualified page 4 of 22 2403 263 00077 1.2. Contact Layout 1.3. Contact Force page 5 of 22 2403 263 00077 1.4. Print Code page 6 of 22 2403 263 00077 1.5. Forces on Component STATE MAX PERMANENT FORCE [N] FROM FRONT TO BACK MEMBRANE 10 0 MAX HANDLING FORCE [N] 20 0 . page 7 of 22 2403 263 00077 1.6. Material List 1. Material of housing: PC 2. Material of membrane: Plastic Foil 3. Material of pot: Soft Magnetic Iron 4. Material of topplate Soft Magnetic Iron 5. Material of magnet: Nd Fe B 6. Material of contact Stainless Steel 7. Material of cover: PC 8. Material of bottom: Stainless Steel 9. Material of vibra spring: CrNi-Steel 10. Dimensions [mm]: ø16.4 x 4.7 11. Mass: 3.0 g page 8 of 22 2403 263 00077 2. Electro-Acoustic Characteristics 2.1. Frequency response Typical frequency response measured on baffle according to 2.4. in measurement adapter according to 2.9 (distance d = 1cm,P= 125mW with 2cm back cavity) f [Hz] 300 400 700 750 900 1500 3000 4000 6000 10000 15000 lower limit [dB SPL] Tolerance window upper limit [dB SPL] 95 85 114 107 107 104 102 103 105 102 f [Hz] 300 900 1500 10000 upper limit [%THD] 15 15 4 4 114 110 108 111 114 112 page 9 of 22 2403 263 00077 2.2. Electro-Acoustic Parameters Loudspeaker mounted in adapter acc. to 2.9 measured on baffle according to 2.4. 1. Rated impedance Z: 8Ω 2. Voice coil resistance R: 7.2Ω±10% 3. Resonance frequency in 2ccm (measured @15mW) f0: 740Hz±10% 3.1. Resonance frequency with open back 540Hz typical 4. Maximum usable excursion f0: xmax p-p: 0.6mm p-p 5. Nominal characteristic sensitivity (calculated for 1W in 1m) average from 2kHz to 5kHz 74±2dB 5.1. Measured characteristic sensitivity (at 125mW in 1cm) average from 2kHz to 5kHz 105±2dB 6. THD 7. Rub & buzz according chapter 2.1. < 80dBSPL (300Hz -1500Hz) in 1cm at 500mW (2Veff) All acoustic measurements at 23±2°C 2.3. Power Handling Loudspeaker mounted in lifetime test device (1ccm back cavity, open front) 1. MAX.SHORT TERM POWER (1sec. ON / 60sec. OFF) 1000mW (RMS) (pink noise, 2nd order high pass filtered, -3dB at 800Hz, crest factor 2) 2. MAX. CONTINUOUS POWER (500h) 500mW (RMS) (pink noise, 2nd order high pass filtered, -3dB at 700Hz, crest factor 2) . page 10 of 22 2403 263 00077 2.4. Measurement Setup (acoustics) IEC BAFFLE Rq,including wiring < 0,3 Ω freefield microphone 1/4“ power amplifier ≈ Analyzer • Frequency response • THD • rub & buzz 1 cm³ d measurement adapter 2.5. Measured Parameters 2.5.1. Sensitivity SPL is expressed in dB rel 20µPa, computed according to IEC 268-5 Measurement set up according chapter 2.4 and 2.9. This test is performed for 100% of products in the production line 2.5.2. Frequency response Frequency response is measured according test set up in chapter 2.4 and 2.9 data sheet and checked against the tolerance window defined in chapter 2.1. This Test is performed for 100% of products in the production line. 2.5.3. Total harmonic distortion (THD) Is measured according IEC 268-5 (2nd to 5th harmonics) and test set up in chapter 2.4 and 2.9 and checked against the tolerance window defined in chapter 2.1. This test is performed for 100% of products in the production line. 2.5.4. Rub& Buzz Rub & Buzz will be measured in the Inline-measuring device with a sinusoidal sweep. Rub & Buzz is defined as the maximum level of no harmonic energy, expressed as signal to nonharmonic content ratio, in a certain frequency-range. Signal and evaluation criteria are according to chapter 2.2. This test is performed for 100% of products in the production line. page 11 of 22 2403 263 00077 2.6. Vibra Parameters Loudspeaker mounted in adapter acc. to 2.7 1. Resonance frequency (measured @0.35V/15mW) f0: 157Hz±7Hz 2. Max. Acceleration (measured @0.35V/15mW between 152-162Hz) a max: >6,5m/s2 acceleration vs frequency 8 7 6 a [m/s²] 5 4 3 2 1 0 142 147 152 157 162 167 172 f [Hz] page 12 of 22 2403 263 00077 2.7. Measurement setup (Vibra Function) fr<25Hz power amplifier analyzer MFD B&K 4374 80g ~ 2.8. Measured Parameters (Vibra Function) 2.8.1. acceleration Device is measured mounted on a mass of 100g in the center of gravity. This mass is mounted on a suspension with a resulting resonance frequency of less than 25Hz. An acceleration sensor (B&K 4374) is mounted in the center of gravity for measuring the acceleration. The maximum acceleration in the defined frequency range is detected by sweeping the input voltage from the minimum to the maximum frequency. 2.8.2. Vibra Resonance Frequency The electrical impedance of the device is measured. The first maximum of the impedance (in the range of 150-162Hz) corresponds with the vibra resonance frequency. page 13 of 22 2403 263 00077 2.9. Measurement adapter page 14 of 22 2403 263 00077 Revision: Re evi visi ssiion on: Release Rele Re leas ease ase D / 15 as 15.02.10 5.0 02. 2.10 2.10 10 3. Environmental Conditions 3.1. Storage The transducer fulfils the specified data after treatment according to the conditions of ETS 300 019-2-1 Specification of environmental test: Storage Test spec. T 1.2: Weather protected, not temperature controlled storage locations. 3.2. Transportation The transducer fulfils the specified data after treatment according to the conditions of ETS 300 019-2-2 Specification of environmental test: Transportation Test Spec. T 2.3: Public Transportation 3.3. Functionality The transducer fulfils the specified data after treatment according to the conditions of ETS 300 019-2-5 ETS 300 019-2-7 Specification of environmental test: Ground vehicle installations Test spec. T 5.1: Protected installation Specification of environmental test: Portable and non-stationary use Test spec. T 7.3E: Partly weather protected and non-weather protected locations. page 15 of 22 2403 263 00077 4. Environmental Tests Qualification Tests According to our milestone plan (Product Creation Process), a complete qualification test will be done at design validation on products, manufactured under serial conditions and 1x per year and product family. The qualification process covers all tests described under 4.5 and a complete inspection takes place. Requalification Tests 1x per month and product family samples are taken and submitted to tests described under 0 Sample Size, Sequence Unless otherwise stated 20 arbitrary new samples will be used to perform each test for both, qualification and requalification test as described under 0 and 0. Period of Shelf-Life The period of shelf-life is 12 months. Testing Procedures Storage Tests Low Temperature Storage Test Parameter Test Method and Conditions Duration Evaluation Standard Low Temperature Storage -40°C 168h Measurements after 2 hours recovery time. (Ref. EN 60068-2-1) rel. humidity not controlled All samples fully operable. All acoustical parameters according specification with tolerances increased by 50 %. High Temperature Storage Test Parameter Test Method and Conditions Duration Evaluation Standard Dry Heat Storage +85°C 168h (Ref. EN 60068-2-2) rel. humidity not controlled Measurements after 2 hours recovery time. All samples fully operable. All acoustical parameters according specification with tolerances increased by 50 %. page 16 of 22 2403 263 00077 Temperature Cycle Test Parameter Test Method and Conditions Duration Evaluation Standard Measurements after 2 hours recovery time. Change of Temperature -40°C/+85°C 5 cycles (Ref. EN 60068-2-14) Transition time <3 min. See Figure 4-1 below >2h for each temperature All samples fully operable. All acoustical parameters according specification with tolerances increased by 50 %. +85°C -40°C 2h 3m 2h 3m 2h 3m 2h 3m 2h 3m 2h 3m 2h 3m 2h 3m 2h 3m 2h 3m Figure 4-1: Temperature Cycle Test Temperature / Humidity Cycle Test Parameter Test Method and Conditions Duration Evaluation Standard Damp heat, cyclic +25°C/+55°C 6 cycles. 90% to 95% RH. 24h at each temperature Measurements after 2 hours recovery time. (Ref. IEC 60068-2-30) Temp. change time <3h See Figure 4-2 below All samples fully operable. All acoustical parameters according specification with tolerances increased by 50 %. Caution: no condensed water on products! +55°C +25°C 9h 3h 9h 3h 9h 3h 9h 3h 9h 3h 9h 3h 9h 3h 9h 3h 9h 3h 9h 3h 9h 3h 9h 3h Figure 4-2: Temperature / Relative Humidity Cycle Test page 17 of 22 2403 263 00077 Operating Tests Cold Operation Test Parameter Test Method and Conditions Duration Evaluation Standard Cold Operation Test -20°C 72h (Ref. EN 60068-2-1) rel. humidity not controlled Measurements after 2 hours recovery time. All samples fully operable. signal acc. Chapter 2.3 THD may be increased after test. All other acoustical parameters according specification with tolerances increased by 50 %. Dry Heat Operation Test Parameter Test Method and Conditions Duration Evaluation Standard Dry Heat Operation +70°C 500h (Ref. EN 60068-2-2) rel. humidity not controlled Measurements after 2 hours recovery time. All samples fully operable. The allowable change in sensitivity shall not be greater than 3 dB. All other acoustical parameters according specification with tolerances increased by 50 %. signal acc. Chapter 2.3 Salt Mist Test Parameter Test Method and Conditions Duration Evaluation Standard Salt Mist The part must be subjected to 2 hours spray of 5% NaCl salt mist, at 35°C then be left at 40°C and 95% RH for 22h. 3 cycles The samples shall be washed after the test with distilled water and dried at T< 50°C. (Ref. IEC60068-2-52, Kb / Severity 2 Component may have reduced performance, but must still function properly. The allowable sensitivity difference shall not be greater than ±3dB from initial sensitivity. page 18 of 22 2403 263 00077 Shock Resistance Test (Free Fall Test) - unprotected product Parameter Test Method and Conditions Conditions / Sample size Evaluation Standard Mechanical shock Drop of sample without fixation of release plane from a height of 1.5m onto concrete floor. Each 3 shocks in both directions of the 3 axes. Component may have reduced performance, but must still function properly. The allowable sensitivity difference shall not be greater than ±3dB from initial sensitivity. (Ref. IEC60068-2-32 Ed), Procedure 1 (18 drops in total) Impact Durability Test (Tumble Test) – protected product Parameter Test Method and Conditions Conditions / Sample size Evaluation Standard Impact durability (in a Tumble Tester) Speaker in drop test box or representative mechanics. Random drops on steel base. 30 units 180 drops, 1m Component may have reduced performance, but must still function properly. The allowable sensitivity difference shall not be greater than ±3 dB from initial sensitivity. (Ref. IEC60068-2-32 Ed) DUT power off (SPR a7.1.1) Resistance to Electrostatic Discharge Parameter Test Method and Conditions Conditions / Sample size Evaluation Standard Resistance to ESD One pole is grounded and the ESD pulse is applied to the other pole. The speaker must be stressed first with one polarisation and then with the other polarisation. DUT must be discharged between each ESD exposure. 10 exposures on each polarity / 5 units All samples fully operable. IEC61000-4-2 Level 4 (SPR c 2.5.1) DUT Power off All acoustical parameters according specification with tolerances increased by 50%. Level 4: contact +/- 8kV, air +/- 15kV . page 19 of 22 2403 263 00077 5. Related Documents IEC 268-5 IEC 68-2 EN 60068-2 ISO 2859 - 1 ISO 3951 ETS 300 019-2-1 ETS 300 019-2-2 ETS 300 019-2-5 ETS 300 019-2-7 Sound System equipment Part 5: Loudspeaker Environmental testing Environmental testing Sampling procedures for inspection by attributes Part 1: Sampling plans indexed by acceptable quality level (AQL) for lot-bylot inspection Sampling procedures and charts for inspection by variables for percent defectives. Specification of environmental test: Storage Test spec. T 1.2: Weather protected, not temperature controlled storage locations Specification of environmental test: Transportation Test spec. T 2.3: Public Transportation Specification of environmental test: Ground vehicle installations Test spec. T 5.1: Protected installation Specification of environmental test: Portable and non-stationary use Test spec. T 7.3E: Partly weather protected and non-weather protected locations page 20 of 22