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page 1 of 19 ?2011 knowles electronics 2403 260 00041 ra receiver 10 x 4.8 x 2 mm with mesh
page 2 of 19 ?2011 knowles electronics release C revision: e 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
page 3 of 19 ?2011 knowles electronics release C revision: e 2403 260 00041 1. theory of operation ra receiver 10 x 4,8 x 2 with mesh is a high end mi cro size receiver specifically designed for mobile phone and other applications where high quality sou nd is needed and only very little space for components is available.
page 4 of 19 ?2011 knowles electronics release C revision: e 2403 260 00041 2. mechanical layout and dimensions 2.1. main dimensions
page 5 of 19 ?2011 knowles electronics release C revision: e 2403 260 00041 2.2. pwb layout 2.3. spring force
page 6 of 19 ?2011 knowles electronics release C revision: e 2403 260 00041 2.4. force on component forces on different state of component state min. surface of pressure [mm2] max permanent force [n] max handling force [n] from front to back - 5 15 from side 1 to side 1 3 5 15 from side 2 to side 2 10 5 15 pot - 0 0 membrane - 0 0 pull of force (adhesive/basket) - 0.15 5 membrane pull (basket) back back front front side 1 side 1 side 2 side 1 pot
page 7 of 19 ?2011 knowles electronics release C revision: e 2403 260 00041 2.5. part marking/labeling the samples have a serial number on bottom (pot) si de v14_b6344_33_53c4 edition code free space line a=l1, b=l2 . . . date (ywwd) internal code time 00 - 96 = 00:00 - 23:59 free space variant a C laser printing time 00 - 96 = 00:00 C23:59 a10 s6344 33 edition code date (ywwd) variant b C inkjet printing line
page 8 of 19 ?2011 knowles electronics release C revision: e 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
page 9 of 19 ?2011 knowles electronics release C revision: e 2403 260 00041 3. electrical and acoustical specifications 3.1. frequency response typical frequency response measured on baffle accor ding to chapter 3.4 : distance d = 1cm, p= 10 mw, open back ) tolerance window f hz lower limit [db spl] upper limit [db spl] f hz upper limit [%thd] 300 67 83 350 50 450 - 94 500 25 600 86 94 700 10 700 - 94 1000 5 2000 82 88 6000 5 4500 82 88 7000 10 6500 82 91 10000 10 50 55 60 65 70 75 80 85 90 95 100 100 1000 10000 100000 f spl [db rel 20upa] 0 10 20 30 40 50 60 70 80 90 100 thd [%]
page 10 of 19 ?2011 knowles electronics release C revision: e 2403 260 00041 3.2. electro-acoustic parameters loudspeaker mounted in adapter acc. to sheet 190-6. 1 1. rated impedance z: 32 w 2. voice coil resistance r: 28.8 w 10 % 3. resonance frequency (measured @1mw) f 0 : 520 hz 15 % 4. maximum useable excursion xmax: 0.40 mm p-p 5. nominal charact. sensitivity (calculated for 1w in 1m ) 65 2 db average from 2khz to 4khz 5.1. measured charact. sensitivity (at 10mw in 1cm ) 85 2 db average from 2khz to 4khz 6. frequency range in telecom application 300 - 3,4 khz 7. thd according to sh eet 190 - 4 8. rub & buzz < 60 dbspl (300 hz .. 1 500hz) in 1cm at 5mw (400mv eff ) 3.3. power handling receiver mounted in lifetime test device ( open rea r / open front) (pink noise shaped according to diagram below, crest faktor 2) 1. max.short term power (0,5sec. on / 3sec. o ff) 75 mw (rms) 2. max. continuous power (500h) 40 mw (rms) spectrum of life time test signal -50 -40 -30 -20 -10 0 10 100 1000 10000 frequenz [hz] dbrel
page 11 of 19 ?2011 knowles electronics release C revision: e 2403 260 00041 3.4. measurement setup 3.5. measured parameters 3.5.1. sensitivity spl is expressed in db rel 20 m pa, 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 u p in chapter 3.4 data sheet and checked against the tolerance window defined in chapter 3.1. this t est 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 harmoni cs) and test set up in chapter 3.4. this test is performed for 100% of products in the production li ne. 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 eva luation criteria are according to chapter 3.1. this test is performed for 100% of products in the production line. d analyzer ? power amplifier iec baffle freefield microphone 1/4 r q,including wiring <0,3 w
page 12 of 19 ?2011 knowles electronics release C revision: e 2403 260 00041 3.6. measurement adapter
page 13 of 19 ?2011 knowles electronics release C revision: e 2403 260 00041 4. environmental conditions 4.1. storage the transducer fulfils the specified data after tre atment according to the conditions of ets 300 019-2-1 specification of environmental test: storage test spec. t 1.2: weather protected, not temperatur e controlled storage locations. 4.2. transportation the transducer fulfils the specified data after tre atment according to the conditions of ets 300 019-2-2 specification of environmental test: transportatio n test spec. t 2.3: public transportation 4.3. functionality the transducer fulfils the specified data after tre atment according to the conditions of ets 300 019-2-5 specification of environmental test: ground vehicl e installations test spec. t 5.1: protected installation ets 300 019-2-7 specification of environmental test: portable and n on-stationary use test spec. t 7.3e: partly weather protected and non -weather protected locations.
page 14 of 19 ?2011 knowles electronics release C revision: e 2403 260 00041 5. environmental tests 5.1. qualification tests according to our milestone plan (product creation p rocess), a complete qualification test will be done at design validation of products manufactured under serial conditions. 1x per year and product family a requalification ta kes place. the qualification process covers all tes ts described under 5.5 and a complete inspection. 5.2. reliability tests 1x per month and product family samples are taken a nd submitted to tests described under 5.5.2 5.3. sample size, sequence unless otherwise stated 20 arbitrary new samples wi ll 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 test method and conditions duration evaluation standard low temperature storage (ref. en 60068-2-1) -40 c rel. humidity not controlled 168h measurements after 2 hours recovery time. 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 (ref. en 60068-2-2) +85 c rel. humidity not controlled 168h measurements after 2 hours recovery time. all samples fully operable. all acoustical parameters according specification with tolerances increased by 50 %.
page 15 of 19 ?2011 knowles electronics release C revision: e 2403 260 00041 5.5.1.3. temperature cycle test parameter test method and conditions duration evaluation standard change of temperature (ref. en 60068-2-14) -40 c/+85 c transition time <3 min. see figure 5-1 below 5 cycles >2h for each temperature measurements after 2 hours recovery time. all samples fully operable. all acoustical parameters according specification with tolerances increased by 50 %. -40c +85c 2h 2h 3m 3m 2h 2h 3m 3m 2h 2h 3m 3m 2h 2h 3m 3m 3m 3m 2h 2h 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 (ref. iec 60068-2-30) +25 c/+55 c 90% to 95% rh. temp. change time <3h see figure 5-2 below caution: no condensed water on products! 6 cycles. 24h at each temperature measurements after 2 hours recovery time. all samples fully operable. all acoustical parameters according specification with tolerances increased by 50 %. +25c +55c 9h 9h 3h 3h 9h 9h 3h 3h 9h 9h 3h 3h 9h 9h 3h 3h 9h 9h 3h 3h 9h 9h 3h 3h figure 5-2: temperature / relative humidity cycle t est
page 16 of 19 ?2011 knowles electronics release C revision: e 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 (ref. en 60068-2-1) -20 c rel. humidity not controlled signal acc. chapter 3.3 72h measurements after 2 hours recovery time. all samples fully operable. thd may be increased after test. all other acoustical parameters according specification with tolerances increased by 50 %. 5.5.2.2. dry heat operation test parameter test method and conditions duration evaluation standard dry heat operation (ref. en 60068-2-2) +70 c rel. humidity not controlled signal acc. chapter 3.3 500h 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 %. 5.5.3. salt mist test parameter test method and conditions duration evaluation standard salt mist (ref. iec60068-2-52, kb / severity 2 the part must be subjected to 2 hours spray of 5% nacl salt mist, at 35c 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< 50c. component may have reduced performance, but must still function properly. the allowable sensitivity difference shall not be greater than 3db from initial sensitivity.
page 17 of 19 ?2011 knowles electronics release C revision: e 2403 260 00041 5.5.4. shock resistance test (free fall test) - unprotecte d product parameter test method and conditions conditions / sample size evaluation standard mechanical shock (ref. iec60068-2-32 ed), procedure 1 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. (18 drops in total) component may have reduced performance, but must still function properly. the allowable sensitivity difference shall not be greater than 3db from initial sensitivity. 5.5.5. impact durability test (tumble test) C protected pr oduct parameter test method and conditions conditions / sample size evaluation standard impact durability (in a tumble tester) (ref. iec60068-2-32 ed) (spr a7.1.1) speaker in drop test box or representative mechanics. random drops on steel base. 30 units 180 drops, 1m dut power off component may have reduced performance, but must still function properly. the allowable sensitivity difference shall not be greater than 3 db from initial sensitivity. 5.5.6. resistance to electrostatic discharge parameter test method and conditions conditions / sample size evaluation standard resistance to esd iec61000-4-2 level 4 (spr c 2.5.1) 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. level 4: contact +/- 8kv, air +/- 15kv 10 exposures on each polarity / 5 units dut power off all samples fully operable. all acoustical parameters according specification with tolerances increased by 50%.
page 18 of 19 ?2011 knowles electronics release C revision: e 2403 260 00041 6. related documents iec 268-5 sound system equipment part 5: loudspeaker iec 68-2 environmental testing en 60068-2 environmental testing iso 2859 - 1 sampling procedures for inspection by attributes part 1: sampling plans indexed by acceptable qualit y level (aql) for lot-by-lot inspection iso 3951 sampling procedures and charts for inspection by v ariables for percent defectives. ets 300 019-2-1 specification of environmental test: storage test spec. t 1.2: weather protected, not temperatu re controlled storage locations ets 300 019-2-2 specification of environmental test: transportatio n test spec. t 2.3: public transportation ets 300 019-2-5 specification of environmental test: ground vehicl e installations test spec. t 5.1: protected installation ets 300 019-2-7 specification of environmental test: portable and non-stationary use test spec. t 7.3e: partly weather protected and no n-weather protected locations
page 19 of 19 ?2011 knowles electronics release C revision: e 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 an d logo cp release e 07.06.11 3189 introduction 5 layer gasket/migration nxp to knowle s template sa/cp 8. disclaimer stresses above the absolute maximum ratings may cau se permanent damage to the device. these are stress ratings only. the device may not function wh en operated at these or any other conditions beyond those indicated under electrical and acoust ical specifications. exposure beyond those indicated under electrical and acoustical specific ations for extended periods may affect device reliability. the information contained in this literature is bas ed on our experience to date and is believed to be reliable and it is subj ect to change without notice. it is intended as a guide for use by persons having techn ical skill at their own discretion and risk. we do not guarantee favorable results or assume any liabi lity in connection with its use. dimensions contained herei n are for reference purposes only. for specific dim ensional requirements consult factory. this publica tion is not to be taken as a license to operate under, o r recommendation to infringe any exiting patents. t his supersedes and voids all previous literature. this product is not qualified for use in automotive applications frequency range in telecom application: 300 hz C 3,4 khz

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