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2403 260 00165 SPEAKER-916-3-S9-WILDCAT-O-950 The 9 x 16 x 3 mm rectangular WILDCAT speaker is a high end miniature speaker specifically designed for portable devices, music phones and smartphones where high quality sound is required. The use of a high performance magnet system leads to high sensitivity and coupled with a power handling capacity of 700mW. It enables extremely high sound pressure for the loudest 9x16x3mm speaker currently available on the market. Features: • • • • • • • Best-in-class 75dB (1W, 1m) sensitivity • Industry-standard dimensions: Maximum power handling capacity: 700mW 9x16x3.0mm Low THD between 4 and 8kHz due to • Optimized for use in mobile handsets lightweight membrane technology • Best-in-class 75dB/W/m sensitivity Designed for N’BassTM - ultimate sound • Maximum power handling capacity: experience combined with Knowles N’Bass TM 1000mW technology • Extremely robust spring connector Industry-standard dimensions: 9x16x3.0mm • Manufactured to the highest 100% in-line measurement of all specified standards acoustical and electrical parameters • 100% in-line measurement of all Optimized for use in mobile handsets This document contains information which is confidential and/or proprietary to Knowles Electronics, LLC or its affiliates. Do not distribute or use the information contained herein without permission from an authorized representative of Knowles Page 1 of 21 ©2011 Knowles Electronics 2403 260 00165 Contents 1. Theory of Operation ............................................................................................................................ 3 2. Mechanical Layout and Dimensions.................................................................................................... 4 2.1. Main Dimensions .........................................................................................................................4 2.2. PWB Layout & electric polarity ...................................................................................................5 2.3. Magnetic polarity ........................................................................................................................5 2.4. Spring Force .................................................................................................................................6 2.5. Forces on Component .................................................................................................................7 2.6. Part Marking/Labeling .................................................................................................................8 2.7. Material List .................................................................................................................................9 3. Electrical and Acoustical Specifications............................................................................................. 10 3.1. Frequency Response and THD...................................................................................................10 3.2. Electro-Acoustic Parameters .....................................................................................................11 3.3. Power Handling .........................................................................................................................11 3.4. Measurement Setup ..................................................................................................................12 3.5. Measured Parameters ...............................................................................................................12 3.6. Measurement adapter ..............................................................................................................13 4. Environmental Conditions ................................................................................................................. 14 4.1. Storage.......................................................................................................................................14 4.2. Transportation ...........................................................................................................................14 4.3. Functionality ..............................................................................................................................14 5. Environmental Tests .......................................................................................................................... 15 5.1. Qualification Tests .....................................................................................................................15 5.2. Reliability Tests ..........................................................................................................................15 5.3. Sample Size, Sequence ..............................................................................................................15 5.4. Period of Shelf-Life ....................................................................................................................15 5.5. Testing Procedures ....................................................................................................................15 Related Documents ................................................................................................................................... 20 6. Change History .................................................................................................................................. 21 7. Disclaimer .......................................................................................................................................... 21 Revision: A Page 2 of 21 ©2011 Knowles Electronics 2403 260 00165 1. Theory of Operation SPEAKER-916-3-S9-WILDCAT-O-950 is a high end micro size speaker specifically designed for mobile phones and other mobile applications where high quality sound is needed and only very little space for components is available. Revision: A Page 3 of 21 ©2011 Knowles Electronics 2403 260 00165 2. Mechanical Layout and Dimensions 2.1. Main Dimensions Revision: A Page 4 of 21 ©2011 Knowles Electronics 2403 260 00165 2.2. PWB Layout & electric polarity 2.3. Magnetic polarity Revision: A Page 5 of 21 ©2011 Knowles Electronics 2403 260 00165 2.4. Spring Force Revision: A Page 6 of 21 ©2011 Knowles Electronics 2403 260 00165 2.5. Forces on Component MINIMUM AREA OF FORCE APPLIED [mm2] MAXIMUM PERMANENT FORCE [N] MAXIMUM HANDLING FORCE [N] FROM FRONT (DISTRIBUTED TO GASKET AREA TO BACK (BASKET)) - 10 25 FROM SIDE 1 TO SIDE 1 3 10 20 FROM SIDE 2 TO SIDE 2 10 10 20 TO POT - 10 25 TO MEMBRANE - 0 0 PULL OFF FORCE (COVER/BASKET) - - 10 STATE Revision: A Page 7 of 21 ©2011 Knowles Electronics 2403 260 00165 2.6. Part Marking/Labeling The products have a serial number on bottom side, and laser on POT Auto Line/ Semi Line: 0165 LXV12 YYWWDHH BAR CODE: Position 1 2 3 4 XXXXLXV121412411 Item Product 12NC [last 4 digitals] Production Line Product Version Year/Week/Date/Time Example 0165 LX V12 1412411 XXXX LX V12 14 12 4 11 Last 4 digitals of 12NC Production line Production version Year Week Date Time Revision: A Page 8 of 21 ©2011 Knowles Electronics 2403 260 00165 2.7. Material List 1. 2. 3. 4. 5. 6. 7. 8. Material of basket: Material of membrane: Material of pot: Material of magnet: Material of contact Material of cover: Dimensions: Mass: Revision: A Polycarbonate PEEK-Compound Soft magnetic Iron Nd Fe B CrNi-Steel, gold plated Polycarbonate 9x16x3.0mm 1.2g Page 9 of 21 ©2011 Knowles Electronics 2403 260 00165 3. Electrical and Acoustical Specifications Typical frequency response measured on baffle acc. Chapter 3.4 distance d=10cm, with rear volume 1cm³ at 2.37V (700mW) 110 80 105 70 100 60 95 50 90 40 85 30 80 20 75 10 THD [%] SPL [dB rel 20uPa] 3.1. Frequency Response and THD 0 70 100 1000 10000 f [Hz] SPL [dB] THD limit Tolerance window f [Hz] 300 1100 1800 3000 6500 9000 10000 14000 20000 Revision: A lower limit [dB SPL] (floating) 67 92 92 91 91 93 97 97 91 f [Hz] upper limit [dB SPL] (floating) 300 800 1800 3000 5000 7000 16000 20000 80 99 99 97 97 108 108 106 Page 10 of 21 F [Hz] upper limit [%THD] 200 375 450 650 1000 1250 2000 3000 4000 20000 38 38 25 15 13 10 6 4 3 3 ©2011 Knowles Electronics 2403 260 00165 3.2. Electro-Acoustic Parameters Loudspeaker mounted in adapter acc. to 2.11 and 2.13. Measurement signal: Logarithmic sine sweep, 1.5s, 22kHz-180Hz. All acoustic measurements at 23±2°C. 1. Rated impedance Z: 8Ω 2. Voice coil resistance R: 6.9Ω±10% 3. Resonance frequency (in 1cm3 rear volume @ 700mW) fC: 950Hz±10% 3.1 Typical resonance frequency without rear volume fS: 510Hz p-p: 4. Maximum usable excursion xmax 0.64mmp-p 5. Nominal characteristic sensitivity (measured at 1V in 10cm, calculated to 1W, 1m average from 2kHz to 4.5kHz) 75±2dB 5.1. Measured characteristic sensitivity (at 700mW in 10cm) average from 2kHz to 4.5kHz, thermal compression included 94±2dB 6. THD according chapter 3.1 7. Rub & Buzz no audible R&B at max sine power 3.3. Power Handling Speaker mounted in test device 1cm3 rear volume (open front). 1. Max sine power 2. Max short term power 700mW (70°, 1sec. ON / 60sec. OFF) 1000mW (RMS) (thermal limit test: pink noise, 2nd order high pass filtered, -3dB at 1kHz, crest factor 2) 3. Max continuous power (70°, 500h) 700mW (RMS) (pink noise, 2nd order high pass filtered, -3dB at 400Hz, crest factor 2) Revision: A Page 11 of 21 ©2011 Knowles Electronics 2403 260 00165 3.4. Measurement Setup IEC baffle Rq,including wiring