2403 260 00041 RA RECEIVER 10 X 4.8 X 2 MM WITH MESH Page 1 of 19 ©2011 Knowles Electronics 2403 260 00041 Contents 1. Theory of operation ........................................................................................................................ 3 2. Mechanical Layout and Dimensions ................................................................................................ 4 2.1. Main Dimensions ....................................................................................................................4 2.2. PWB Layout ............................................................................................................................5 2.3. Spring Force ............................................................................................................................5 2.4. Force on component ...............................................................................................................6 2.5. Part Marking/Labeling.............................................................................................................7 2.6. Material List ............................................................................................................................8 3. Electrical and Acoustical Specifications ........................................................................................... 9 3.1. Frequency response ................................................................................................................9 3.2. Electro-Acoustic Parameters ................................................................................................. 10 3.3. Power handling ..................................................................................................................... 10 3.4. Measurement setup.............................................................................................................. 11 3.5. Measured Parameters .......................................................................................................... 11 3.6. Measurement adapter .......................................................................................................... 12 4. Environmental Conditions ............................................................................................................ 13 4.1. Storage ................................................................................................................................. 13 4.2. Transportation ...................................................................................................................... 13 4.3. Functionality ......................................................................................................................... 13 5. Environmental tests ...................................................................................................................... 14 5.1. Qualification tests ................................................................................................................. 14 5.2. Reliability tests...................................................................................................................... 14 5.3. Sample Size, Sequence .......................................................................................................... 14 5.4. Period of Shelf-Life................................................................................................................ 14 5.5. Testing Procedures ............................................................................................................... 14 6. Related Documents ...................................................................................................................... 18 7. Change History ............................................................................................................................. 19 8. Disclaimer..................................................................................................................................... 19 Release – Revision: E Page 2 of 19 ©2011 Knowles Electronics 2403 260 00041 1. Theory of operation Ra Receiver 10 x 4,8 x 2 with mesh is a high end micro size receiver specifically designed for mobile phone and other applications where high quality sound is needed and only very little space for components is available. Release – Revision: E Page 3 of 19 ©2011 Knowles Electronics 2403 260 00041 2. Mechanical Layout and Dimensions 2.1. Main Dimensions Release – Revision: E Page 4 of 19 ©2011 Knowles Electronics 2403 260 00041 2.2. PWB Layout 2.3. Spring Force Release – Revision: E Page 5 of 19 ©2011 Knowles Electronics 2403 260 00041 2.4. Force on component SIDE 1 SIDE 1 SIDE 1 POT SIDE 2 FRONT FRONT BACK BACK PULL (BASKET) MEMBRANE FORCES ON DIFFERENT STATE OF COMPONENT STATE FROM FRONT TO BACK FROM SIDE 1 TO SIDE 1 FROM SIDE 2 TO SIDE 2 POT MEMBRANE PULL OF FORCE MIN. SURFACE OF PRESSURE [mm²] 3 10 - MAX PERMANENT FORCE [N] 5 5 5 0 0 0.15 MAX HANDLING FORCE [N] 15 15 15 0 0 5 (ADHESIVE/BASKET) Release – Revision: E Page 6 of 19 ©2011 Knowles Electronics 2403 260 00041 2.5. Part Marking/Labeling The samples have a serial number on bottom (pot) side VARIANT A – Laser Printing V14_B6344_33_53C4 Internal Code Edition Code Time 00 - 96 = 00:00 - 23:59 Free Space Line A=L1, B=L2 . . . Free Space Date (ywwd) VARIANT B – Inkjet Printing A10 S6344 33 Edition Code Time 00 - 96 = 00:00 –23:59 Line Date (ywwd) Release – Revision: E Page 7 of 19 ©2011 Knowles Electronics 2403 260 00041 2.6. Material List 1. MATERIAL of BASKET: Polycarbonat (Halogen free) 2. MATERIAL of MEMBRANE: Polyarylat-Compound 3. MATERIAL of POT: soft magnetic iron 4. MATERIAL of MAGNET: Nd Fe B 5. MATERIAL of CONTACT CrNi Steel gold plated 6. MATERIAL of COVER: CuZn 7. FRONT ADHESIVE : Acrylic 8. DIMENSION: 10x4,8x2 9. MASS: 0,2 g 10. STAMP numbered by production sequence Release – Revision: E Page 8 of 19 ©2011 Knowles Electronics 2403 260 00041 3. Electrical and Acoustical Specifications 3.1. Frequency response 100 100 95 90 90 80 85 70 80 60 75 50 70 40 65 30 60 20 55 10 50 100 1000 THD [%] SPL [dB rel 20uPa] TYPICAL FREQUENCY RESPONSE measured on Baffle according to Chapter 3.4 : distance d = 1cm, p= 10 mW, open back) 0 100000 10000 f f Hz 300 450 600 700 2000 4500 6500 Release – Revision: E Tolerance window lower limit upper limit [db SPL] [db SPL] 67 83 94 86 94 94 82 82 82 88 88 91 Page 9 of 19 f Hz 350 500 700 1000 6000 7000 10000 upper limit [%THD] 50 25 10 5 5 10 10 ©2011 Knowles Electronics 2403 260 00041 3.2. Electro-Acoustic Parameters LOUDSPEAKER MOUNTED IN ADAPTER ACC. TO SHEET 190-6.1 1. RATED IMPEDANCE Z: 32 Ω 2. VOICE COIL RESISTANCE R: 28.8 Ω ± 10 % 3. RESONANCE FREQUENCY (measured @1mW) f0: 520 Hz ± 15 % 4. MAXIMUM useable EXCURSION Xmax: 0.40 mm p-p 5. NOMINAL CHARACT. SENSITIVITY (calculated for 1W in 1m ) average from 2kHz to 4kHz 65 ± 2 dB 5.1. MEASURED CHARACT. SENSITIVITY (at 10mW in 1cm ) average from 2kHz to 4kHz 85 ± 2 dB 6. FREQUENCY RANGE IN TELECOM APPLICATION 300 - 3,4 kHz 7. THD according to Sheet 190 - 4 < 60 dBSPL (300 Hz .. 1500Hz) in 1cm at 5mW (400mVeff) 8. RUB & BUZZ 3.3. Power handling RECEIVER MOUNTED IN LIFETIME TEST DEVICE ( OPEN REAR / OPEN FRONT) (pink noise shaped according to diagram below, Crestfaktor 2) 2. MAX.SHORT TERM POWER (0,5sec. ON / 3sec. OFF) MAX. CONTINUOUS POWER (500h) 75 mW (RMS) 40 mW (RMS) Spectrum of life time test signal 10 0 -10 dBrel 1. -20 -30 -40 -50 100 1000 10000 Frequenz [Hz] Release – Revision: E Page 10 of 19 ©2011 Knowles Electronics 2403 260 00041 3.4. Measurement setup IEC BAFFLE Rq,including wiring <0,3Ω freefield microphone 1/4“ power amplifier analyzer ≈ d 3.5. Measured Parameters 3.5.1. Sensitivity SPL is expressed in dB rel 20µPa, computed according to IEC 268-5. Measurement set up and parameters according chapter 3.4. This test is performed for 100% of products in the production line. 3.5.2. Frequency response Frequency response is measured according test set up in chapter 3.4 data sheet and checked against the tolerance window defined in chapter 3.1. This Test is performed for 100% of products in the production line. 3.5.3. Total harmonic distortion (THD) Is measured according IEC 268-5 (2nd to 5th harmonics) and test set up in chapter 3.4. This test is performed for 100% of products in the production line. 3.5.4. 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 non-harmonic content ratio, in a certain frequency-range. Signal and evaluation criteria are according to chapter 3.1. This test is performed for 100% of products in the production line. Release – Revision: E Page 11 of 19 ©2011 Knowles Electronics 2403 260 00041 3.6. Measurement adapter Release – Revision: E Page 12 of 19 ©2011 Knowles Electronics 2403 260 00041 4. Environmental Conditions 4.1. 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. 4.2. 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 4.3. Functionality The transducer fulfils the specified data after treatment according to the conditions of ETS 300 019-2-5 ETS 300 019-2-7 Release – Revision: E 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 13 of 19 ©2011 Knowles Electronics 2403 260 00041 5. Environmental tests 5.1. Qualification tests According to our milestone plan (Product Creation Process), a complete qualification test will be done at design validation of products manufactured under serial conditions. 1x per year and product family a requalification takes place. The qualification process covers all tests described under 5.5 and a complete inspection. 5.2. Reliability tests 1x per month and product family samples are taken and submitted to tests described under 5.5.2 5.3. 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 5.1 and 5.2. 5.4. Period of Shelf-Life The period of shelf-life is 5 years. 5.5. Testing Procedures 5.5.1. Storage Tests 5.5.1.1. Low Temperature Storage Test Parameter Low Temperature Storage (Ref. EN 60068-2-1) Test Method and Conditions Duration Evaluation Standard -40°C 168h Measurements after 2 hours recovery time. rel. humidity not controlled All samples fully operable. All acoustical parameters according specification with tolerances increased by 50 %. 5.5.1.2. 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 %. Release – Revision: E Page 14 of 19 ©2011 Knowles Electronics 2403 260 00041 5.5.1.3. Temperature Cycle Test Parameter Test Method and Conditions Duration Evaluation Standard Change of Temperature -40°C/+85°C 5 cycles (Ref. EN 60068-2-14) Transition time <3 min. See Figure 5-1 below >2h for each temperature Measurements after 2 hours recovery time. 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 5-1: Temperature Cycle Test 5.5.1.4. 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 5-2 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 5-2: Temperature / Relative Humidity Cycle Test Release – Revision: E Page 15 of 19 ©2011 Knowles Electronics 2403 260 00041 5.5.2. Operating Tests 5.5.2.1. 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 3.3 5.5.2.2. 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. signal acc. Chapter 3.3 5.5.3. The allowable change in sensitivity shall not be greater than 3 dB. All other acoustical parameters according specification with tolerances increased by 50 %. 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 Release – Revision: E Component may have reduced performance, but must still function properly. The allowable sensitivity difference shall not be greater than ±3dB from initial sensitivity. Page 16 of 19 ©2011 Knowles Electronics 2403 260 00041 5.5.4. 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) 5.5.5. 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) 5.5.6. 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 Release – Revision: E Page 17 of 19 ©2011 Knowles Electronics 2403 260 00041 6. 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 Release – Revision: E 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-by-lot 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 18 of 19 ©2011 Knowles Electronics 2403 260 00041 7. Change History Status Version Date ECR Comment / Changes Initials of owner Obsolete A 18.12.07 2333 First release BU Obsolete B 17.07.08 1957 Halogen free basket CP Obsolete C 07.04.09 2435 Update legal disclaimer and printing methods CP Obsolete D 06.04.10 2802 Update legal disclaimer and logo CP Release E 07.06.11 3189 Introduction 5 layer gasket/Migration NXP to Knowles template SA/CP 8. Disclaimer Stresses above the Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only. The device may not function when operated at these or any other conditions beyond those indicated under “Electrical and Acoustical Specifications”. Exposure beyond those indicated under “Electrical and Acoustical Specifications” for extended periods may affect device reliability. This product is not qualified for use in automotive applications Frequency range in telecom application: 300 Hz – 3,4 kHz The information contained in this literature is based on our experience to date and is believed to be reliable and it is subject to change without notice. It is intended as a guide for use by persons having technical skill at their own discretion and risk. We do not guarantee favorable results or assume any liability in connection with its use. Dimensions contained herein are for reference purposes only. For specific dimensional requirements consult factory. This publication is not to be taken as a license to operate under, or recommendation to infringe any exiting patents. This supersedes and voids all previous literature. Release – Revision: E Page 19 of 19 ©2011 Knowles Electronics