Acoustic Interface Design Guide 2010 MEMS MICROPHONES SPECIALTY MICROPHONES BOOMS AND SENSORS ACCELEROMETERS & ACOUSTIC DAMPER SCREENS SPECIALTY SPEAKERS CUSTOM ASSEMBLIES ACOUSTIC SOFTWARE MICROPHONE AND SPEAKER BASICS Discover your next acoustic interface solution. Knowles Acoustics offers you a full spectrum of MEMS microphones, specialty microphones, balanced armature speakers, custom assemblies, and sound conditioning software. This application guide will help you select the right acoustic interface solution. Knowles reserves the right to change designs and specifications without prior notice. Should a safety concern arise regarding this product, please contact us immediately for technical consultation. Knowles cannot assume responsibility for any problems arising out of the use of this product. This information does not convey any license by any implication under any patents or other right. 2 www.knowles.com We can help you every step of the way. It all starts with your application. Or it starts with an idea you may have. For support from concept to design to sub-assembly, or any step along the way, just call us. Or visit us at www.knowles.com Table of Contents MICROPHONES - MEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6 SPECIALTY TRANSDUCERS - MICROPHONES . . . . . . . . . . . . . . . . 7-11 SPECIALTY TRANSDUCERS - BOOMS & SENSORS . . . . . . . . . . . . .12-15 ACCELEROMETERS & ACOUSTIC DAMPER SCREENS . . . . . . . . . . . . . 16 SPECIALTY TRANSDUCERS - SPEAKERS . . . . . . . . . . . . . . . . . . 17-26 CUSTOM ASSEMBLIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ACOUSTIC SOFTWARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 MICROPHONE AND SPEAKER BASICS . . . . . . . . . . . . . . . . . . . . 29-30 www.knowles.com 3 MICROPHONES - MEMS SiSonicTM MEMS Microphones Built on our CMOS/MEMS technology platform, the SiSonicTM silicon-based MEMS microphone series is a step ahead of the competition with product shipments exceeding 1 billion units to date. The proven and evolving design series continues to support high-performance, high-density innovation in such applications as cell phones, smart phones, laptop computers, sensors, digital still cameras, portable music players, and other portable electronic devices. Design variables include ever-smaller sizes, lower profiles and mounting options, increased output capacities, and new digital audio options that eliminate analog noise. For manufacturers, surface mount designs eliminate off-line subassembly production costs. Customized designs are supplied on tape-and-reel and can be run through standard automatic pick-n-place equipment during in-line surface mount manufacturing. The microphones can also be integrated with our patented IntelliSonicTM software and special porting designs to provide a precisely customized sound. * New MaxRF models eliminate GSM/TDMA burst noise and provide wide-band RF noise suppression * UltraMini footprint - less than 11.5mm 2 (SPU Series) * Slim UltraMini footprint - less than 8.5mm 2 (SPQ Series) * Digital mics eliminate analog noise * Integrated designs with differential or switchable gain * Zero Height Mic TM for thinnest ever designs Part Numbering 4 www.knowles.com MICROPHONES - MEMS Ultrasonic Acoustic Sensor * High frequency functionality * Wide range of applications * Micro-sized sensing and actuation 20 TYPICAL SENSITIVITY RELATIVE TO 1 kHz (dB) Derived from our industry-leading MEMS silicon surface mount microphone technology, our new ultrasonic sensor designs function on a high frequency band. Sensor designs are possible across a wide spectrum of applications requiring highly miniaturized solutions for sensing and actuation/signaling. 15 10 5 0 -5 -10 -15 -20 2 3 1k 4 5 6 789 10k 2 3 4 5 6 789 100k 2 3 4 5 6 7 89 10k FREQUENCY (Hz) Model SPM0404UD5 Description Directivity Unity Gain Omni Supply Voltage Sensitivity @1kHz (min-max) (dB re1V/1Pa) 1.5 to 3.6v -42.0 Output Impedance (Ohms) <100 Maximum Current Drain (mA) <0.25 Ultra Mini Package 20 TYPICAL SENSITIVITY RELATIVE TO 1 kHz (dB) * New Ultra Mini with footprint of 11mm2 * Flexible designs available with/without RF filtering and built in amplifier * Ideal for miniature consumer electronics 15 10 5 0 -5 -10 -15 -20 2 3 100 4 5 6 789 1k FREQUENCY (Hz) Model SPUL409HE5H SPU0409HD5H SPU0410HR5H SPU0414HR5H Description Directivity Supply Voltage (min-max) RF Immunity Sensitivity @1kHz (dB re1V/1Pa) Unity Gain Unity Gain Unity Gain Amplified Omni Omni Omni Omni 1.5 to 3.6v 1.5 to 3.6v 1.5 to 3.6v 1.5 to 3.6v Enhanced Standard Max-RF Max-RF -42.0 -42.0 -42.0 -22.0 Output Impedance (Ohms) <300 <100 <400 <400 Maximum Current Drain (mA) <0.25 <0.25 <0.25 <0.35 Slim-Ultra Mini Package 20 TYPICAL SENSITIVITY RELATIVE TO 1 kHz (dB) * 24% reduction of footprint (8.4mm 2) from the Ultra-Mini Package * Designs available with/without RF Filtering * Ideal for miniature consumer electronics 15 10 5 0 -5 -10 -15 -20 2 100 3 4 5 6 789 1k 2 3 4 5 6 7 89 10k FREQUENCY (Hz) Model SPQ0410HE5H Description Directivity Supply Voltage (min-max) RF Immunity Sensitivity @1kHz (dB re1V/1Pa) Unity Gain Omni 1.5 to 3.6v Enhanced -42.0 Note: All performance curves are typical www.knowles.com Output Impedance (Ohms) <400 Maximum Current Drain (mA) <0.25 5 MICROPHONES - MEMS Thin Mini Package 20 TYPICAL SENSITIVITY RELATIVE TO 1 kHz (dB) * Thin Mini SiSonic with a footprint less than 18mm2 reduces manufacturing costs and brings greater design flexibility * Rugged, solid-state design process for stable acoustic performance under extreme conditions such as temperature, shock and vibration * Digital - Pulse Density Modulation (PDM) device available, which has an integrated sleep mode and is compatible with stereo input applications 15 10 5 0 -5 -10 -15 -20 2 3 100 4 5 6 789 1k 2 3 4 5 6 7 89 10k FREQUENCY (Hz) Description Directivity Supply Voltage (min-max) RF Immunity Sensitivity @1kHz (dB re1V/1Pa) SPM0404HD5H SPM0406HE3H SPM0407HE3H SPM0408HD5H SPM0404HE5H SPM0405HD4H Unity Gain Differential Switchable Gain Amplified Unity Gain Digital Omni Omni Omni Omni Omni Omni 1.5 to 3.6v 1.5 to 5.5v 1.5 to 5.5v 1.5 to 3.6v 1.5 to 3.6v 1.6 to 3.6v -42.0 -22.0 -22.0 -22.0 -42.0 -26.0 (dBFS/1Pa) SPM0408HE5H SPM0410HR5H Amplified Unity Gain Omni Omni 1.5 to 3.6v 1.5 to 3.6v Standard Enhanced Enhanced Standard Enhanced Digital Standard Enhanced Max-RF Model Output Impedance (Ohms) <100 <500 <300 <100 <200 100pf Maximum Load <200 <400 -22.0 -42.0 Maximum Current Drain (mA) <0.25 <0.50 <0.37 <0.35 <0.25 <0.60 <0.35 <0.25 Zero Height MicTM SiSonic 20 TYPICAL SENSITIVITY RELATIVE TO 1 kHz (dB) Zero Height MicTM STANDARD MOUNT 15 10 5 0 -5 -10 -15 -20 2 100 3 4 5 6 789 1k 2 3 4 5 6 7 89 10k FREQUENCY (Hz) * Zero Height Mic TM SiSonic shrinks product thickness by up to 30% * Minimizes distance between PCB and mobile device housing * Ideal for microphone placement on reverse side of PCB, while maintaining acoustic port on top side of mobile device, for clamshell phone designs * Enables the thinnest, highest density product designs Model SPM0404LE5H SPM0408LE5H SPM0410LR5H SPU0409LE5H SPU0410LR5H SPK0413LM4H 6 Description Directivity Supply Voltage (min-max) RF Immunity Sensitivity @1kHz (dB re1V/1Pa) Unity Gain Amplified Unity Gain Unity Gain Unity Gain Digital Omni Omni Omni Omni Omni Omni 1.5 to 3.6v 1.5 to 3.6v 1.5 to 3.6v 1.5 to 3.6v 1.5 to 3.6v 1.6 to 3.6v Enhanced Enhanced Max-RF Enhanced Max-RF Digital Enhanced -38.0 -18.0 -38.0 -38.0 -38.0 -26.0 (dBFS/1Pa) Note: All performance curves are typical www.knowles.com Output Impedance (Ohms) <200 <200 <400 <200 <400 100pf Maximum Load Maximum Current Drain (mA) <0.25 <0.35 <0.25 <0.25 <0.25 <0.65 SPECIALTY TRANSDUCERS - Microphones Specialty Transducer Microphones The Specialty Transducer (ST) product line consists of miniature microphones, speakers, and assemblies. Hundreds of design possibilities can be applied to your product challenge with our high-performance microphone designs. Ideal for new product ideas that require premium audio and very small form factors, solutions include noise canceling, omni-directional and unidirectional performance. Other variables include size, shape, amplification, sensitivity, low noise, and resistance to vibration and mechanical shock. ST components and assemblies are unique in fit, form and function. Our products are designed into high value applications in markets such as the following: * Communications - headsets, handsets, earpieces, telephony, voice recognition, emergency services, military, surveillance * Pro audio - in-ear speakers, lapel microphones, boom microphones * Medical and more - sensors, audiometers, medical implants The GA Series Microphone is a brand new microphone design with unique size and shape. Its elongated 2mm x 2mm x 4mm dimensions are ideal for directional applications, allowing you ultimate flexibility in terminal pad area placement. And the GA is using the new '38' circuit providing excellent sensitivity and noise performance for package size. The GA targets space efficiency in BTE and ITE designs; BTE: End-to-end configuration provides 8mm spacing for directionality while ITE: 20% smaller cross sectional area than FG Series. SENSITIVITY IN dB RELATIVE TO 1.0V/0.1 Pa GA SERIES - Microphone Omni-Directional 2.00 x 2.00 x 4.00 (mm) -40dB -45 -50 -55 -60 -65 -70 -75 -80 3 4 5 20 6 7 8 9 100 2 3 4 5 6 7 8 9 2 3 4 5 6 7 89 1k 2 10k FREQUENCY (Hz) * Compact size providing superior fit rates (2mm x 2mm x 4mm) * Excellent sensitivity and noise performance for package * Integral RFI suppression * Exceptionally low vibration sensitivity * Multiple acoustic port placement versions Nominal Output Impedance (Ohms) 25 Max. "A" Weighted Noise (1 kHz Equivalent SPL) 24.0 dB 1.3 nom. 1.6 max 25 25.0 dB 4400 1.3 nom. 1.6 max 25 25.0 dB 4400 Sensitivity @ 1kHz (dB re1V/0.1Pa) DC Supply (Vdc) Max. Amplifier Current Drain (uA) GA38-30774-000 -53.03 1.3 nom. 1.6 max GA38-30775-000 -53.03 GA38-30776-000 -53.03 Model Note: All performance curves are typical www.knowles.com 4400 Comments Tubeless, Port on Bottom, Terminal Pads on Cover Tubeless, Port on End, Terminal Pads on End Tube Version (0.8mm x 0.74mm ID), Terminal Pads on End 7 SPECIALTY TRANSDUCERS - Microphones FG/DFG SERIES - Microphone Omni-Directional (FG), Directional (DFG) 2.56 DIA x 2.56 (mm) SENSITIVITY IN dB RELATIVE TO 1.0V/0.1 Pa The FG Series microphone is the world's smallest electret condenser microphone. Its cylindrical shape and compact size facilitate compact designs. The FG can also be used in directional applications as a matched omni-directional pair. * Smallest microphone option * High resistance to mechanical shock * Exceptionally low vibration sensitivity * Various responses available * Integral RFI suppression -40 -50 -60 -70 -80 2 3 4 5 6 7 8 9 100 2 3 4 5 6 7 8 9 10k 1k FREQUENCY (Hz) Nominal Output Impedance (Ohms) 50 50 50 50 50 50 50 50 "A" Weighted Noise * 1kHz Equivalent SPL ** re 1Vrms 30.0 dB* 30.0 dB* 28.0 dB* 28.0 dB* 28.0 dB* 28.0 dB* 36.0 dB* -93.0 dB** 50 50 50 -93.0 dB** -93.0 dB** -93.0 dB** 700 1700 1700 Sensitivity @ 1kHz (dB re1V/0.1Pa) DC Supply (Vdc) Max. Amplifier Current Drain (uA) FG-23329-D65 FG-23329-P07 FG-23629-P16 FG-23629-D65 FG-23652-D65 FG-23652-P16 FG-23742-D36 FG-26163-D65 -53.03 -53.03 -53.03 -53.03 -53.03 -53.03 -63.03 -58.03 1.3 nom. 3.0 max 1.3 nom. 3.0 max 1.3 nom. 3.0 max 1.3 nom. 3.0 max 1.3 nom. 3.0 max 1.3 nom. 3.0 max 1.3 nom. 3.0 max 1.3 nom. 3.0 max DFG-30344-000 DFG-30852-000 DFG-30851-000 -67.03 -69.03 -73.03 1.3 nom. 3.0 max 1.3 nom. 3.0 max 1.3 nom. 3.0 max Model Comments 4400 4400 4400 4400 4400 4400 4400 4400 RFI Improved Version 3-Wire, 1015mm Shielded Cable 3-Wire, 25.4mm Litz Wires RFI Improved Version RFI Improved Version 3-Wire, 25.4mm Litz Wires 3-Wire, 25.4mm Litz Wires RFI Improved Version 6dB/Octave Ski-Slope Directional, Super Cardioid Directional, Cardioid Directional, Noise Canceling EM SERIES - Microphone Omni-Directional 3.63 x 3.63 x 2.28 (mm) SENSITIVITY IN dB RELATIVE TO 1.0V/0.1 Pa The EM is a popular, alternative omni-directional microphone. The EM can also be used in directional applications as a matched omni-directional pair. * High resistance to mechanical shock * Improved RFI and EMI * Undamped, screen damped, and internally damped responses * Numerous port locations * Wide range of frequency responses -40 -50 -60 -70 -80 2 3 4 100 5 6 7 8 9 2 3 4 5 1k 10k FREQUENCY (Hz) 8 Nominal Output Impedance (Ohms) 50 "A" Weighted Noise * 1kHz Equivalent SPL ** re 1Vrms 31.0 dB* 1.3 nom. 1.6 max 50 33.0 dB* 4400 1.3 nom. 3.0 max 50 -98.0 dB** 4400 Sensitivity @ 1kHz (dB re1V/0.1Pa) DC Supply (Vdc) Max. Amplifier Current Drain (uA) EM-23046-P16 -56.03 1.3 nom. 3.0 max EM-23069-000 -56.03 EM-30081-D65 -68.03 Model Note: All performance curves are typical www.knowles.com 4400 6 7 8 9 Comments 3-Wire, 25.4mm Litz Wire Standard Response Tubeless Standard Response 12dB/Octave Ski-Slope SPECIALTY TRANSDUCERS - Microphones EK/EL SERIES - Microphone Omni-Directional (EK), Unidirectional (EL) 4.00 x 5.59 x 2.28 (mm) EK omnidirectional microphones provide a unique combination of size, performance and value. Its high electroacoustic sensitivity and low noise make this microphone an excellent choice for applications where space allows. These popular microphones are available in many model varieties. SENSITIVITY IN dB RELATIVE TO 1.0V/0.1 Pa -40 * High resistance to mechanical shock * Available with RFI suppression * Various port locations available * Wide range of frequency responses * High S/N performance -50 -60 -70 -80 5 6 7 8 9 100 2 3 4 2 5 6 7 8 9 1k 3 4 5 6 7 8 9 10k FREQUENCY (Hz) Sensitivity @ 1kHz (dB re1V/0.1Pa) DC Supply (Vdc) Max. Amplifier Current Drain (uA) EK-23024-C36 -53.02 1.3 nom. 10 max 50 "A" Weighted Noise * 1kHz Equivalent SPL ** re 1Vrms 26.0 dB* EK-23024-P07 -53.02 1.3 nom. 10 max 50 26.0 dB* 4400 EK-23027-C36 -53.02 1.3 nom. 10 max 50 26.0 dB* 4400 EK-23028-C36 -57.03 1.3 nom. 10 max 50 -100.0 dB** 4400 EK-23033-C36 -53.02 1.3 nom. 10 max 50 26.0 dB* 4400 EK-23132-000 EK-23133-C36 -53.02 -53.02 1.3 nom. 10 max 1.3 nom. 10 max 50 50 26.0 dB* 26.0 dB* 4400 4400 EK-23142-C37 -53.02 1.3 nom. 10 max 50 26.0 dB* 4400 EL-23078-000 -53.02 1.3 nom. 10 max 50 -100.0 dB** 4400 Model Nominal Output Impedance (Ohms) Comments 4400 RFI Improved Version Standard Response 3-Wire, 1 m Shielded Cable Standard Response RFI Improved Version Standard Response RFI Improved Version 6dB/Octave Ski-Slope RFI Improved Version Broadband Response Broadband Response RFI Improved Version Broadband Response RFI Improved Version Broadband Response Dual Port Uni-Directional The NR Series close talking microphones deliver state-of-the-art noise canceling performance. NR microphones are used as headset microphones in the most demanding communication and speech recognition environments. The NR Series microphones are available in boom microphone packages. (See the Specialty Transducers - Booms & Sensors section for details.) * Integral FET amplifier * Diaphragm responds to pressure differential giving high rejection of background noise * Withstands severe environmental conditions * Low vibration sensitivity * High electoacoustical sensitivity * Superior noise canceling performance * Lead attachment available Model NR-23158-000 NR-23159-000 NR-23160-000 NR-25994-000 NR-25994-D63 NR-30610-D63 SENSITIVITY IN dB RELATIVE TO 1.0V/0.1 Pa NR SERIES - Microphone Noise Canceling 4.00 x 5.59 x 2.28 (mm) -40 -50 -60 -70 -80 2 3 4 100 5 6 7 8 9 2 3 1k 5 6 7 8 9 10k FREQUENCY (Hz) Sensitivity @ 1kHz (dB re1V/0.1Pa) DC Supply (Vdc) Max. Amplifier Current Drain (uA) Max. "A" Weighted Noise (dBV) Nominal Output Impedance (Ohms) Comments -49.03 -65.03 -52.03 -49.03 -55.04 -59.03 1.3 nom. 10 max 1.3 nom. 10 max 1.3 nom. 10 max 1.3 nom. 10 max 1.3 nom. 10 max 3.0 nom. 10 max 50 200 200 50 300 550 -100 -100 -100 -100 -100 -100 4400 2500 2500 4400 2000 2000 3-Wire 2-Wire 2-Wire 3-Wire 2-Wire 2-Wire Note: All performance curves are typical 4 www.knowles.com 9 SPECIALTY TRANSDUCERS - Microphones Knowles' Magnetic Microphones (BJ Series) are based on balanced armature technology and are self-shielded against external magnetic fields. The microphones offer high efficiency, stability, and reliability and are small in size. The diaphragm of the BJ Series responds to pressure differential, giving high rejection of background noise. Both face and edge ports are offered. In addition, there is a short distance between front and back ports resulting in improved noise rejection up to higher frequencies. * Balanced armature technology * High efficiency, stability and reliability * Self-shielded against external magnetic fields * Face and edge ports * Diaphragm responds to pressure differential giving high rejection of background noise * Short distance between front and back ports resulting in improved noise rejection up to higher frequencies Model BJ-21590-000 BJ-28411-000 SENSITIVITY IN dB RELATIVE TO 1.0V/0.1 Pa BJ SERIES - Microphone Omni-Directional, Noise Canceling 7.87 x 5.59 x 4.01 (mm) -55dB -60 -65 -70 -75 -80 -85 -90 -95 2 3 4 5 6 7 8 9 100 2 3 4 5 6 7 8 9 10k 2 3 4 5 6 7 8 9 10k 1k FREQUENCY (Hz) Directivity Port Location Nominal Impedance at 1kHz (Ohms) Nominal DC Resistance at 20 C (Ohms) Omni-Directional Noise Canceling OJn Dual 3900 300 900 75.5 Knowles' Piezo Ceramic Microphones (BL Series) are rugged, stable and versatile. BL microphones are available in three different package sizes: standard, thin or 0.5" cylindrical shell and cable assembly. Both communication and broadband frequency response versions are offered. In addition, BL microphones have high vibration sensitivity and may be used as accelerometers. * High sensitivity * Wide frequency range * Integral FET amplifier * High resistance to mechanical shock * Various responses * Two case sizes available -35dB -40 -45 -50 -55 -60 -65 -70 -75 2 3 4 5 6 7 8 9 100 1k FREQUENCY (Hz) Dimensions (mm) Sensitivity @ 1kHz (dB re1V/0.1Pa) DC Supply (Vdc) BL-21671-000 BL-21671-140 7.87 x 5.54 x 4.06 7.87 x 5.84 x 4.06 -54.03 -54.04 1.3 1.3 50 50 32.0 dB 32.0 dB 13000 13000 BL-21785-000 BL-21994-000 7.87 x 5.54 x 2.24 25.5 -69.03 -69.03 3 3 160 160 34.0 dB 34.0 dB 4000 4000 BL-23497-000 25.5 -69.03 3 160 34.0 dB 4000 BL-27046-000 7.87 x 5.54 x 2.24 -69.03 1.3 160 34.0 dB 4000 Model 10 SENSITIVITY IN dB RELATIVE TO 1.0V/0.1 Pa BL SERIES - Omni-Directional Microphone Note: All performance curves are typical Max. Amplifier Nominal Output Current Drain (uA) "A" Weighted Noise Impedance (Ohms) www.knowles.com Comments Standard Response Faster Overpressure Recovery Standard Response Broadband Response 965mm Shielded Cable Broadband Response 34.3mm Leads Broadband Response Broadband Response SPECIALTY TRANSDUCERS - Microphones WP SERIES - Waterproof Microphone Omni-Directional, Noise Canceling 3.99 x 5.56 x 2.21 (mm) SENSITIVITY IN dB RELATIVE TO 1.0V/0.1 Pa The WP Series' form factor is a very small size with low vibration sensitivity. The excellent noise canceling performance is useful for sensors and instrumentation. The WP Series are available in boom microphone packages. (See the FB Series and PNR/PWP Series for details.) * Waterproofed to submersion in 1m water * Close-talking (noise-canceling) * Corrosion resistant * Withstands explosive decompression * Excellent environmental performance * High resistance to mechanical shock -40 -50 -60 -70 -80 2 3 4 5 100 2 6 7 8 9 1k 3 4 5 6 7 8 9 10k FREQUENCY (Hz) "A" Weighted Noise Max. Amplifier * 1kHz Equivalent SPL Current Drain (uA) ** re 1Vrms 300 -100 dB** 50 26.0 dB* 50 26.0 dB* Sensitivity @ 1kHz (dB re1V/0.1Pa) Directivity DC Supply (Vdc) WP-23501-000 WP-23502-000 WP-23502-P07 -54.03 -52.03 -52.03 Noise Canceling Omni-Directional Omni-Directional 1.3 nom. 10 max 1.3 nom. 10 max 1.3 nom. 10 max WP-23502-P16 -52.03 Omni-Directional 1.3 nom. 10 max 50 26.0 dB* 4400 WP-23849-C36 -52.03 Omni-Directional 1.3 nom. 10 max 50 26.0 dB* 4400 WP-25993-D63 -55.04 Noise Canceling 1.3 nom. 10 max 300 -100 dB** 2000 Model Nominal Output Impedance (Ohms) Comments 2500 4400 4400 2-Wire 3-Wire 3-Wire, w/ 1m Shielded Cable 3-Wire, w/ 25.4mm Litz Wires 3-Wire, RFI Improved + Extended Response 2-Wire The MR Series Assemblies consist of a microphone element attached to a bellows assembly. They may be panel mounted, attached for boom applications, and are suitable for outdoor use or repeated submersion. * Highly waterproof - no loss of performance after immersion in 15-20 m water * Corrosion resistant * Withstands explosive decompression * Design proven in rugged environments * Cable wire attached * High resistance to mechanical shock * Acoustically transparent bellows * Resists effects of mud, sand, and salt encrustation Model MR-23151-000 MR-23793-000 MR-28406-000 Dimensions (mm) Sensitivity @ 1kHz (dB re1V/0.1Pa) DC Supply (Vdc) 22.12 DIA x 9.3 22.12 DIA x 11.43 22.12 DIA x 7.6 -87.03 -60.04 -60.03 N/A 1.3 1.3 Note: All performance curves are typical SENSITIVITY IN dB RELATIVE TO 1.0V/0.1 Pa MR SERIES - Waterproof Microphone Omni-Directional -35 -45 -55 -65 -75 2 3 4 5 100 2 6 7 8 9 www.knowles.com 4 5 6 7 8 9 10k FREQUENCY (Hz) Max. Amplifier Nominal Output Current Drain (uA) "A" Weighted Noise Impedance (Ohms) N/A 100 50 3 1k 30.0 dB 31.0 dB 30.0 dB 300 2500 3500 Comments 2-Wire, 193mm Leads 3-Wire, 201mm Leads 3-Wire, 202mm Leads 11 SPECIALTY TRANSDUCERS - Booms & Sensors Booms & Sensors Knowles' boom microphones are designed for either flexible or rigid configurations and offer such performance options as noise rejection and high-frequency crossover of near and far field responses. Lengths and end terminations are customized to meet your application needs. Marketers of headsets and audio systems often seek Knowles boom designs. Collaboration with commercial, governmental and industrial designers is producing new helmet applications for aircraft, military, first responder and high-noise manufacturing environments. * Standard and waterproof *Flexible and rigid styles *Boom housing available in plastic and metal *Customized lengths and end terminations Part Numbering FB-F I -30026-000 1 1 Product Description FB: Flexible Boom 2 3 4 2 Boom Diameter A: 2.3mm OD Positionable Cable B: 2.7mm OD Gooseneck (w/shrink tube) D: 4.2mm OD Gooseneck (w/shrink tube) E: 5.4mm OD Gooseneck (w/shrink tube) F: 5.9mm OD Gooseneck (w/shrink tube) H: 5.0mm OD Gooseneck (w/shrink tube) M: 1.0mm OD Positionable Tube 3 Head Series I: BJ Housing M: NR/WP Waterproof Housing O: Original Housing U: FG/DFG Micro Housing W: Plastic Housing w/ Sinter Disc 4 Model # Knowles Internal Reference Only VWP-F-30109-000 1 1 Product Description V: Value Added 12 Note: All performance curves are typical 2 3 2 Element Series EK, EA, WP 4 3 Housing Series B: Over Molded C: Custom Design F: Plastic Fixed Housing H: ESD Shielded Plastic www.knowles.com 4 Model # Knowles Internal Reference Only SPECIALTY TRANSDUCERS - Booms & Sensors I SERIES * Designed for military customers who are looking for a noise canceling non-power element in robust platform with waterproofing options from 1m down to 10m (based on IP67 rating) - Also available in Omni-Directional - Meets MIL-STD-810F standards * Plastic head design with metal flexible boom - Available in 5.9mm down to 4.2mm diameter metal flexible boom * Military forces, Special Operations, Security and Police and other military communication headsets - Mounted and un-mounted ground forces, armor units * Designed for the BJ series elements *Rating Microphone Element Directivity Boom Length Tip-To-Tip (mm) Exit Wire Length (mm) Nominal Boom Diameter (mm) Microphone Configuration FB-EI-30026-000 1m Noise Canceling 172 60 5.4 2-Wire FB-EI-30426-000 1m BJ-28471-000 (150 Impedance) BJ-28486-000 (30 Impedance) Noise Canceling 172 60 5.4 2-Wire Model *Rating done to IP67 test criteria M SERIES * Designed for military customers who are looking for a noise canceling electret element in robust waterproof housing - Available in Omni-Directional - Waterproof options from 1m down to 20m (per IP67, IP68 and MIL-STD-810F) * Plastic head design with metal flexible boom - Available in 6.0mm down to 2.7mm diameter metal flexible boom * Military forces, Special Operations, Security, Fire and Police and other high end communication headsets - Over the ear, earcup or helmet designs for mounted and non-mounted ground forces * Designed for EK, NR and WP series elements Model FB-EM-30342-000 FB-EM-30343-000 FB-EM-30344-000 FB-EM-30345-000 FB-EM-30346-000 FB-EM-30348-000 FB-EM-30349-000 *Rating Microphone 1m 3m 10m 20m 1m 10m 20m NR-25994-D63 WP-25993-D63 NR-25994-D63 NR-25994-D63 EK-23132-C36 EK-23132-C36 EK-23132-C36 Element Directivity Boom Length Tip-To-Tip (mm) Exit Wire Length (mm) Nominal Boom Diameter (mm) Microphone Configuration Noise Canceling Noise Canceling Noise Canceling Noise Canceling Omni-Directional Omni-Directional Omni-Directional 167 167 167 167 167 167 167 60 60 60 60 60 60 60 5.4 5.4 5.4 5.4 5.4 5.4 5.4 2-Wire 2-Wire 2-Wire 2-Wire 2-Wire 2-Wire 2-Wire *Rating done to IP67 test criteria WP-Series elements are waterproof Note: All performance curves are typical www.knowles.com 13 SPECIALTY TRANSDUCERS - Booms & Sensors U SERIES * Designed for Pro-Audio and performance customers who are looking for the lightest directional microphone in an ultra slim housing * Available in Uni-Directional design * Metal head design with metal position-able boom * New 1.0mm diameter design available in multiple colors (flesh tones, black, tan, brown, etc...) * News Anchors, Referees, professional presenters, performance artists and other high-end communication headsets * In-ear ultra light design * Designed for the DFG, VFG & FG elements series Rating Microphone Element Directivity Boom Length Tip-To-Tip (mm) Exit Wire Length (mm) Nominal Boom Diameter (mm) Microphone Configuration FB-MU-30774-000 IP51 DFG-30445-000 115 18 1.0 2-Wire FB-MU-31024-000 FB-MU-31025-000 IP51 IP57 DFG-30851-000 VFG-30747-000 Uni-Directional (Super-Cardioid) Noise Canceling Omni-Directional 115 115 18 18 1.0 1.0 2-Wire 2-Wire Model W SERIES * Designed for customers who are looking for small footprint and lightweight platform with waterproofing to 1m (based on IP67 rating) * Plastic head design with metal flexible boom - Available in 4.2mm down to 2.7mm diameter metal flexible boom * Security, Police, Fire dispatchers and other lightweight communication headsets - SWAT, SRT, HRT, Bike Patrol, Motorcycle Patrol, Mounted and Marine Patrol, K9 Officer * Designed for the NR and WP elements, but can also accommodate EK and EA series Model FB-DW-30294-000 FB-BW-30335-000 FB-DW-30296-000 FB-DW-30293-000 FB-BW-30330-000 FB-DW-30295-000 *Rating Microphone 3m 3m 3m IP54 IP54 IP54 WP-25993-D63 WP-25993-D63 WP-25993-000 NR-25994-D63 NR-25994-D63 NR-25994-000 Element Directivity Boom Length Tip-To-Tip (mm) Exit Wire Length (mm) Nominal Boom Diameter (mm) Microphone Configuration Noise Canceling Noise Canceling Noise Canceling Noise Canceling Noise Canceling Noise Canceling 140 160 140 140 160 140 60 60 60 60 60 60 4.2 2.7 4.2 4.2 2.7 4.2 2-Wire 2-Wire 3-Wire 2-Wire 2-Wire 3-Wire *Rating done to IP67 test criteria WP-Series elements are waterproof Splashproof meeting IP54 test criteria O SERIES * Designed for military customers who are looking for a noise canceling electret element in a metal EMI shielded housing - Available in Omni-Directional - Waterproof options down to 3m using WP elements * Metal head design with metal flexible boom - Available in 8.0mm down to 4.2mm diameter metal flexible boom * Military forces, Special Operations, Security, Fire and Police and other communication headsets - Over the ear, earcup or helmet designs for mounted and non-mounted ground forces * Designed for the EK, NR and WP elements series Model FB-DO-23511-000 FB-DO-25946-000 FB-HO-25624-000 FB-FO-25581-000 *Rating Microphone 3m 3m 3m N/A WP-23501-000 WP-23501-000 WP-23501-000 EK-23024-000 Element Directivity Boom Length Tip-To-Tip (mm) Exit Wire Length (mm) Nominal Boom Diameter (mm) Microphone Configuration Noise Canceling Noise Canceling Noise Canceling Omni-Directional 142 54 142 104 150 30 160 140 4.2 4.2 5.0 5.9 2-Wire 2-Wire 2-Wire 2-Wire *Rating done to IP67 test criteria WP-Series elements are waterproof 14 Note: All performance curves are typical www.knowles.com SPECIALTY TRANSDUCERS - Booms & Sensors F SERIES * Designed for ruggedized panel mounted applications for outdoor microphone and sensor applications - Available in Omni Directional - Waterproof options from 1m down to 20m (per IP67, IP68 and MIL-STD-810F) * Police and Military forces, Special Operations, personalized shot detection systems - Sensor arrays for vibration acoustic signatures and triangulation systems * Designed for the EK, NR and WP elements series Model VEK-F-30350-000 VEK-F-30351-000 VEK-F-30352-000 VEK-F-30460-000 VEK-F-30300-000 VEK-F-30470-000 *Rating Microphone Element Directivity Exit Wire Length (mm) Sensor Diameter (mm) Microphone Configuration 1m 10m 20m 1m 20m 1m EK-23132-C36 EK-23132-C36 EK-23132-C36 EK-23132-C36 EK-23132-C36 EK-26899-P58 Omni-Directional Omni-Directional Omni-Directional Omni-Directional Omni-Directional Omni-Directional 200 200 20 10 8 174 (Shielded) 16 16 16 16 16 16 3-Wire 3-Wire 3-Wire 3-Wire 3-Wire 3-Wire *Rating done to IP67 test criteria H SERIES * Designed for ruggedized fixed position and mounted applications for outdoor sensor arrays for vibration, acoustic signatures and triangulation systems - Available in Omni Directional - Waterproof options from 1m down to 20m (per IP67, IP68 and MIL-STD-810F) * Conductive plastic housing designed to pass MIL-STD-810F EMI shielding housing with shielded cable assembly - Available with extra high SPL circuit design - Custom PCBA options available within the housing cavity * Military, homeland security, border patrol, Police and local municipality applications - Electronic fence, ground sensor / vibration sensor technology, human, light and heavy armored vehicle, helicopter sensors * Designed for EK, NR, GH and WP series elements Model VWP-H-30109-000 VEK-H-30320-000 VEK-H-30108-000 *Rating Microphone 3m 1m 1m WP-30113-P03 EK-23169-P03 EK-26899-P03 Element Directivity Sensor Length (mm) Sensor Diameter (mm) Exit Wire Length (mm) Microphone Configuration Omni-Directional Omni-Directional Omni-Directional 21 21 21 12.7 12.7 12.7 211 211 211 3-Wire 3-Wire 3-Wire *Rating done to IP67 test criteria WP-Series elements are waterproof Note: All performance curves are typical www.knowles.com 15 SPECIALTY TRANSDUCERS - Accelerometers & Acoustic Dampers BU SERIES - Accelerometer 7.87 x 5.54 (mm) SENSITIVITY IN dB RELATIVE TO 1.0V/G ACCELERATION BU Series Accelerometers are frequently used as contact microphones for radio communications in high noise environments such as firefighting or combat. The accelerometers reproduce voice signals from vibrations at the throat or from bony parts of the head, and are compatible with helmet or headset applications. * Ceramic vibration transducer * High vibration sensitivity * Small size * Wide frequency range * Integral FET amplifier * High resistance to mechanical shock * Withstands severe environmental conditions -25 -35 -45 -55 -65 100 2 3 2 4 5 6 7 89 3 4 5 6 7 89 1k FREQUENCY (Hz) Model BU-21771-000 BU-23173-000 BU-23842-000 BU-27135-000 Thickness Sensitivity @ 1KHz (dB re 1V/g) DC Supply (V) Max. Current Drain (uA) 4.06 4.06 2.24 2.24 -45.04.5 -39.04.5 -40.04.0 -45.04.5 1.5 1.5 1.5 1.5 50 50 50 300 Nominal Output Impedance @1 KHz (Ohms) 5200 5200 5200 5200 BF Series - Acoustic Damper Screens Dampers are acoustic cloth screens for insertion inside acoustic tubing. These damping elements are used between the speaker outlet and the ear canal to smoothen the frequency response. * Smoothen and shape frequency response * Various acoustical resistances and sizes 16 Model Color Nominal Acoustic Resistance (Ohms) PLUG (mm) SCREEN (mm) BF-1859-000 BF-1860-000 BF-1861-000 BF-1921-000 BF-1922-000 BF-1923-000 BF-1988-000 BF-1991-000 BF-1995-000 BF-1997-000 BF-1999-000 BF-3034-000 BF-3035-000 BF-3036-000 BF-3037-000 BF-3038-000 BF-3039-000 BF-3163-000 White Brown Green Red Orange Yellow White Green Red White Grey Grey Brown Orange Red Green Green Yellow 680 1000 1500 2200 3300 4700 680 1500 2200 680 330 330 1000 3300 2200 1500 1500 4700 2.08 2.08 2.08 2.08 2.08 2.08 ----2.08 -------- ------1.12 1.12 1.12 1.78 -1.78 1.78 1.78 1.78 1.78 1.37 1.12 Note: All performance curves are typical www.knowles.com "A" Weighted Noise (dBre. 1V) -103 -103 -103 -103 2 3 4 5 6 7 89 10k SPECIALTY TRANSDUCERS - Speakers Specialty Transducer Speakers Knowles sub-miniature speaker designs are based on balanced armature technology (BAX) and are utilized in a variety of high performance audio and communication products. Knowles balanced armature speakers are available in several sizes and efficiencies, which can be finely tuned to meet your specific performance requirements. They are designed for use in in-ear applications, including earphones and communication earpieces, or be sub-assembled by Knowles for premium consumer electronics accessories. * High efficiency, stability and reliability * Customizable performance and port locations * Ideal for premium in-ear designs * Component and subassembly solutions TWFK SERIES - Dual Balanced Armature Speaker 5.00 x 2.73 x 3.86 (mm) SENSITIVITY IN dB RELATIVE TO 20Pa The world's smallest dual balanced armature speaker, the TWFK is designed for pro-audio in-ear applications. Enables customized cross-over systems to achieve target frequency response in a package size smaller than the ED Series. * Single sound port for simplified earphone design * Extreme wideband frequency response * Unique woofer/tweeter combination * Enables leading-edge earphone designs for miniature size and performance 110 105 100 95 90 85 80 75 70 2 3 4 5 6 7 8 9 100 2 3 4 1k 5 6 7 8 9 10k FREQUENCY (Hz) Model Port Location Sensitivity @ 1 kHz (dB SPL) Sensitivity @ 1st Peak (dB SPL) Max SPL @ 1st Peak (dB SPL) DC Resistance (Ohms) Impedance @ 500 Hz (Ohms) 12S 95 103 113 25 31 TWFK-30017-000 FK/DFK SERIES - Balanced Armature Speaker 5.00 x 2.73 x 1.93 (mm) (FK), 5.00 X 2.73 X 3.86 (mm) (DFK) SENSITIVITY IN dB RELATIVE TO 20Pa The world's smallest balanced-armature speaker, the FK Series is designed for applications where size is the most important design concern. * Two-terminal zero-bias configuration * Undamped, screen damped, and internally damped responses * Wide range of coil impedances * DFK model is a dual FK 120 115 110 105 100 95 90 85 80 2 3 4 5 6 7 8 9 100 2 3 1k 4 5 6 7 8 9 10k FREQUENCY (Hz) Model Port Location Sensitivity @ 1 kHz (dB SPL) Sensitivity @ 1st Peak (dB SPL) Max SPL @ 1st Peak (dB SPL) DC Resistance (Ohms) Impedance @ 500 Hz (Ohms) 12S 12S 12S 12S 95.5 95.5 96 99.7 108.5 108.5 105 105.5 118.5 118.5 115.5 115.5 360 360 135 100 450 450 180 133 FK-23451-000 FK-23466-000 FK-26260-000 DFK-30041-000 Note: All performance curves are typical www.knowles.com 17 SPECIALTY TRANSDUCERS - Speakers WBFK SERIES - Wideband Balanced Armature Speaker 5.00 x 2.73 x 1.93 (mm) SENSITIVITY IN dB RELATIVE TO 20Pa Same package size as FK Series, WBFK has extended high frequency response. It is recommended as a high frequency component to be combined with low/ midrange speaker for music earphones. * Lower low/mid-band sensitivity compared to FK Series * Best high frequency response of any Knowles element * Combine with low/mid-range speaker for extended frequency response * TWFK pairs WBFK with low frequency FK 110 105 100 95 90 85 80 75 70 2 3 4 5 6 7 8 9 100 2 3 4 5 1k 6 7 8 9 10k FREQUENCY (Hz) Model Port Location Sensitivity @ 1 kHz (dB SPL) Sensitivity @ 1st Peak (dB SPL) Max SPL @ 1st Peak (dB SPL) DC Resistance (Ohms) Impedance @ 500 Hz (Ohms) 12S 12S 95 91 105 105 114 114 100 12.5 111 13.5 WBFK-30000-000 WBFK-30095-000 FH SERIES - Balanced Armature Speaker 5.09 x 2.80 x 2.59 (mm) SENSITIVITY IN dB RELATIVE TO 20Pa The FH speaker represents an unprecedented combination of ultra-compact size and high SPL output with efficiencies normally found only in much larger speakers. The FH speaker line brings true high-gain, high-output performance to earphone designs. TM * Undamped, screen damped, internally damped, and Ferrofluid damped responses * Various port locations, coil impedances, damping options, termination configurations, and frequency responses available * Maximum SPL output of 123dB at resonance peak, 109dB at midband (500Hz)* 120 115 110 105 100 95 90 85 80 2 3 4 5 2 6 7 8 9 100 3 4 5 6 7 8 9 10000 100 FREQUENCY (Hz) Model Port Location Sensitivity @ 1 kHz (dB SPL) Sensitivity @ 1st Peak (dB SPL) Max SPL @ 1st Peak (dB SPL) DC Resistance (Ohms) Impedance @ 500 Hz (Ohms) 12S 12S 12S 12S 12S 100 100 100 100 100 113 113 113 113 113 123 123 123 123 123 60 240 515 125 60 90 335 685 174 90 FH-23371-000 FH-23375-000 FH-23377-000 FH-23821-000 FH-26553-000 18 Note: All performance curves are typical www.knowles.com SPECIALTY TRANSDUCERS - Speakers HC SERIES - Balanced Armature Speaker 5.16 x 3.51 x 3.00 (mm) SENSITIVITY IN dB RELATIVE TO 20Pa Knowles balanced-armature, magnetic technology to give high efficiency, stability and reliability. HC Series provides increased low frequency dynamic range in a package size equal to FC. * High-output technology provides double (+3dB) the maximum acoustic output of existing Knowles FC Series speakers * Maximum output comparable to Knowles' ED Series speaker in a package size only 68% as large! * Same size and dimensions as Knowles' EH Series * Ideal for applications where small size and high output is required 120 115 110 105 100 95 90 85 80 2 3 4 5 6 7 8 9 100 2 3 4 5 1k 6 7 8 9 10k FREQUENCY (Hz) Model HC-23761-000 HC-23763-000 HC-23764-000 Port Location Sensitivity @ 1 kHz (dB SPL) Sensitivity @ 1st Peak (dB SPL) Max SPL @ 1st Peak (dB SPL) DC Resistance (Ohms) Impedance @ 500 Hz (Ohms) 12C 12C 12C 101 101 101 107 107 107 116 116 116 4.9 11.5 15.5 8.4 20 24 WBHC SERIES - Balanced Armature Speaker 5.16 x 3.51 x 3.00 (mm) The advanced design of the HC Series speaker provides extended acoustic bandwidth for hi-fi in-ear speakers when paired with a low frequency speaker. 120 SENSITIVITY IN dB RELATIVE TO 20Pa * Lower low/mid band sensitivity compared to HC series * Combine with low/mid-range speaker for extended frequency response 115 110 105 100 95 90 85 80 2 3 4 5 2 6 7 8 9 100 3 4 5 6 7 8 9 10000 100 FREQUENCY (Hz) Model WBHC-23910-000 Port Location Sensitivity @ 1 kHz (dB SPL) Sensitivity @ 1st Peak (dB SPL) Max SPL @ 1st Peak (dB SPL) DC Resistance (Ohms) Impedance @ 500 Hz (Ohms) 12C 95 106 115 120 130 FC SERIES - Balanced Armature Speaker 5.18 x 3.55 x 3.00 (mm) SENSITIVITY IN dB RELATIVE TO 20Pa FC Series speakers may be used for small radio communication earphones where ED size does meet package requirements. Rounded corners make it slightly smaller compared to EH Series speakers. * Available in High-Output HC speaker version * Two-terminal zero-bias and three-terminal center-tapped configurations * Undamped, screen damped, internally damped, and FerrofluidTM damped responses * Rounded corners for improved fit rates; 10% smaller cross-section compared to EH speaker 120 115 110 105 100 95 90 85 80 2 3 4 5 6 7 8 9 100 2 3 1k 4 5 6 7 8 9 10k FREQUENCY (Hz) Model FC-26171-000 FC-26465-000 FC-26654-000 FC-26887-000 Port Location Sensitivity @ 1 kHz (dB SPL) Sensitivity @ 1st Peak (dB SPL) Max SPL @ 1st Peak (dB SPL) DC Resistance (Ohms) Impedance @ 500 Hz (Ohms) 12C 12C 12C 12C 104 104 104 100 117 117 113 105 127 127 123 116 135 42 40 354 170 57 60 425 www.knowles.com Note: All performance curves are typical 19 SPECIALTY TRANSDUCERS - Speakers EH SERIES - Balanced Armature Speaker 5.19 x 3.55 x 3.00 (mm) EH Series speakers are approximately 2/3 the size of ED speakers and may be used for small radio communication earphones where ED size does not meet package requirements. 120 SENSITIVITY IN dB RELATIVE TO 20Pa * Balanced-armature, magnetic technology to give high efficiency, stability and reliability * High sensitivity * Various responses, including standard, damped and modified * Low distortion * Self-shielded for low magnetic radiation 115 110 105 100 95 90 85 80 2 3 4 5 6 7 8 9 100 2 3 4 5 1k 6 7 8 9 10k FREQUENCY (Hz) Model Port Location Sensitivity @ 1 kHz (dB SPL) Sensitivity @ 1st Peak (dB SPL) Max SPL @ 1st Peak (dB SPL) DC Resistance (Ohms) Impedance @ 500 Hz (Ohms) 12C 12C 12C 100 100 100 117 116 112.5 126.5 126.5 123 395 68 118 625 101 144 EH-23030-000 EH-23149-000 EH-27479-000 ES SERIES - Balanced Armature Amplified Speaker 5.18 x 3.54 x 3.04 (mm) EH size speaker with integrated Class D power amplifier. SENSITIVITY IN dB RELATIVE TO 20Pa * EH micro speaker, but with internal, highly-efficient, class D amplifier * Lower current drain prolongs battery life * Lower distortion * Available in a range of SPL ratings 120 115 110 105 100 95 90 85 80 2 3 4 5 6 7 8 9 100 2 3 4 5 6 7 8 9 10k 2 3 4 5 6 7 8 9 10k 1k FREQUENCY (Hz) Model Port Location Sensitivity @ 1 kHz (dB SPL) Sensitivity @ 1st Peak (dB SPL) Max SPL @ 1st Peak (dB SPL) 12C 12C 101 101 107 105.5 117.5 115.5 ES-23127-000 ES-23140-000 GQ SERIES - Two-Way Balanced Armature Speaker 6.30 x 4.29 x 4.92 (mm) SENSITIVITY IN dB RELATIVE TO 1.0V/0.1 Pa The GQ is a two-way balanced armature system with added low frequency headroom, designed for pro-audio\in-ear application. Enables customized cross-over response to achieve target frequency response. * Dual element with enhanced bass capabilities and wideband response * Unique, subminiature woofer/tweeter combination for in-ear applications * Single port for simplified earphone design 120 115 110 105 100 95 90 85 80 2 3 4 5 100 6 7 8 9 1k FREQUENCY (Hz) Model Port Location Sensitivity @ 1 kHz (db SPL) Sensitivity @ 1st Peak (db SPL) Max SPL @ 1st Peak (dB SPL) DCR Impedance @ 500 Hz (Ohms) 12S 109.5 116 126 12.5 21.5 GQ-30783-000 20 Note: All performance curves are typical www.knowles.com SPECIALTY TRANSDUCERS - Speakers ED SERIES - Balanced Armature Speaker 6.32 x 4.31 x 2.97 (mm) One of Knowles' most versatile and most popular speakers, its compact size and appreciable output power make the ED speaker suitable for a variety of instruments. 125 SENSITIVITY IN dB SPL * Undamped, screen damped, internally damped, and Ferrofluid TM damped responses * Numerous port locations and coil impedances * High efficiency and low distortion 115 105 95 85 100 2 3 4 5 2 6 7 8 9 3 4 5 1k 6 7 8 9 10k FREQUENCY (Hz) Model ED-21744-000 ED-21913-000 ED-23147-000 ED-23619-000 ED-23801-000 ED-23814-000 ED-26245-000 ED-26598-000 ED-26821-000 ED-27045-000 ED-27230-000 ED-27304-000 ED-29689-000 ED-26805-000 ED-26876-000 Port Location Sensitivity @ 1 kHz (dB SPL) Sensitivity @ 1st Peak (dB SPL) Max SPL @ 1st Peak (dB SPL) DC Resistance (Ohms) Impedance @ 500 Hz (Ohms) 12C 12C 12C 12C 12C 12C 12C 12C 12C 9C 12C 12C 12C 12C 12C 104 104 102.5 104 104 104 104 102.5 102.5 104 104 104 104 102 102.5 112.5 117.5 110 117.5 113 112.5 113 106 111 113 117.5 117 118 110 111 123 127 120.5 127 122 128 122 115.5 120.5 127 127 127 127 120 121 825 376 25 3.3 155 23 35 196 3.3 196 54.5 201 3.7 23 25 1700 780 48 7.1 196 50 55 395 7.1 395 79 290 7.1 26 48 FED SERIES - Balanced Armature Speaker 6.32 x 4.31 x 2.47 (mm) The addition of Ferrofluid TM to Knowles ED series speakers improves mechanical shock survival and provides peak damping to smooth frequency response. SENSITIVITY IN dB RELATIVE TO 20Pa 120 * Ferrofluid TM damped with 2dB, 4dB, or 6dB peak amplitude * Superior shock performance and reduced speaker vibration * Two-terminal zero-bias and three-terminal center-tapped configurations * Numerous port locations and coil impedances 115 110 105 100 95 90 85 80 75 70 2 3 4 5 6 7 8 9 100 2 3 1k 4 5 6 7 8 9 10k FREQUENCY (Hz) Model FED-26792-I04 FED-30048-I04 Port Location Sensitivity @ 1 kHz (dB SPL) Sensitivity @ 1st Peak (dB SPL) Max SPL @ 1st Peak (dB SPL) DC Resistance (Ohms) Impedance @ 500 Hz (Ohms) 12C 12N 102.5 102 107 107 116.5 116 48 23 65 26 www.knowles.com Note: All performance curves are typical 21 SPECIALTY TRANSDUCERS - Speakers EP SERIES - Balanced Armature Amplified Speaker 6.32 x 4.29 x 2.99 (mm) 120 SENSITIVITY IN dB RELATIVE TO 20Pa Based on Knowles' versatile and popular ED speaker, the EP series adds the benefits of an internal Class-D amplifier. Its compact size and appreciable output power make the EP speaker suitable for a variety of designs. * Class D amplified magnetic speaker * Self-shielded to reduce magnetic radiation * 125dB SPL maximum output * Three-terminal electrical connection 115 110 105 100 95 90 85 80 2 3 4 5 6 7 8 9 100 2 3 4 5 6 7 8 9 10k 2 3 4 5 6 7 8 9 10k 1k FREQUENCY (Hz) Model Port Location Sensitivity @ 1 kHz (db SPL) Sensitivity @ 1st Peak (db SPL) Max SPL @ 1st Peak (dB SPL) 12C 106 114 124 EP-24075-000 SR SERIES - Balanced Armature Speaker 6.40 DIA x 4.00 (mm) At 6.4mm diameter, the Mini SR is the smallest round balanced armature speaker in the marketplace. SR offers output equivalent to the FC series and maximizes bass performance. SENSITIVITY IN dB RELATIVE TO 20Pa 130 * Round package facilitates earphone designs * Drop-in upgrade for moving coil dynamic speakers * Designed for high volume production * Balanced armature technology 125 120 115 110 105 100 95 90 85 80 2 3 4 5 6 7 8 9 100 1k FREQUENCY (Hz) Model SR-6438NWS-000 SR-6438NWS-158 Port Location Sensitivity @ 1 kHz (dB SPL) Sensitivity @ 1st Peak (dB SPL) Max SPL @ 1st Peak (dB SPL) DC Resistance (Ohms) Impedance @ 500 Hz (Ohms) Face Face 109.5 109.5 120 120 130 130 25 25 36.5 32.8 EC SERIES - Balanced Armature Speaker 7.57 x 4.31 x 3.67 (mm) SENSITIVITY IN dB RELATIVE TO 20Pa EC Series speakers are commonly used in isolating earphones for radio communication. * Similar SPL output to the BK Series * Rounded corners on the face opposite the terminal pad * 34% smaller volume than the BK Series 125 120 115 110 105 100 95 90 85 2 3 4 5 6 7 8 9 100 2 1k 3 4 5 6 7 8 9 10k FREQUENCY (Hz) Model Port Location Sensitivity @ 1 kHz (dB SPL) Sensitivity @ 1st Peak (dB SPL) Max SPL @ 1st Peak (dB SPL) DC Resistance (Ohms) Impedance @ 500 Hz (Ohms) 12S 12S 12S 108 108 108 120 120 120 130 130 129 92 196 26.3 200 425 54 EC-23097-000 EC-23098-000 EC-26368-000 22 Note: All performance curves are typical www.knowles.com SPECIALTY TRANSDUCERS - Speakers TEC SERIES - Balanced Armature Speaker 7.87 x 4.09 x 2.79 (mm) The TEC combines output comparable to the larger BK speaker in an ultra-thin package. The TEC is suitable for multi-element earphone designs. 130 SENSITIVITY IN dB RELATIVE TO 20Pa * Ultra-thin * Wideband output * DTEC combines two TEC elements * Enables small multi-element designs 125 120 115 110 105 100 95 90 85 80 2 3 4 5 6 7 8 9 100 2 3 4 5 1k 6 7 8 9 10k FREQUENCY (Hz) Model TEC-30033-000 TEC-30087-000 Port Location Sensitivity @ 1 kHz (dB SPL) Sensitivity @ 1st Peak (dB SPL) Max SPL @ 1st Peak (dB SPL) DC Resistance (Ohms) Impedance @ 500 Hz (Ohms) 12C 12C 115 115 119 119 129 129 22 46 31 62 DTEC SERIES - Balanced Armature Speaker 7.87 x 4.09 x 5.59 (mm) The DTEC Series combines two TEC speaker elements with a single round port. Case size is equivalent to BK/EF. DTEC provides increased output and reduced vibration compared to a single speaker. SENSITIVITY IN dB RELATIVE TO 20Pa 130 * Dual elements with single sound port * More output than BK in equal package size * Reduced vibration compared to BK * Improved frequency response compared to BK 125 120 115 110 105 100 95 90 85 80 2 3 4 100 2 5 6 7 8 9 1k 3 4 5 6 7 8 9 10k FREQUENCY (Hz) Model DTEC-30008-000 Port Location Sensitivity @ 1 kHz (dB SPL) Sensitivity @ 1st Peak (dB SPL) Max SPL @ 1st Peak (dB SPL) DC Resistance (Ohms) Impedance @ 500 Hz (Ohms) 12S 123 122.5 132.5 23 31.5 www.knowles.com Note: All performance curves are typical 23 SPECIALTY TRANSDUCERS - Speakers BK SERIES - Balanced Armature Speaker 7.87 x 5.59 x 4.01 (mm) BK Series speakers provide broadband performance at value pricing. They are commonly used for full range in-ear speakers and communications utilizing an earplug design. 135 125 SENSITIVITY IN dB SPL * High efficiency and low distortion * Various port locations, coil impedances, damping options, terminal configurations, and frequency responses available 115 105 95 2 3 4 5 6 7 8 9 100 2 3 4 5 6 7 8 9 10k 1k FREQUENCY (Hz) Model BK-21600-000 BK-21604-000 BK-21610-000 BK-21613-000 BK-21615-000 BK-21669-000 BK-23134-000 BK-26824-000 BK-28507-000 BK-28510-000 BK-28562-000 BK-29725-000 Port Location Sensitivity @ 1 kHz (dB SPL) Sensitivity @ 1st Peak (dB SPL) Max SPL @ 1st Peak (dB SPL) DC Resistance (Ohms) Impedance @ 500 Hz (Ohms) 12S 12S 12S 1S 12S 12C 12S 12S 12S 12S 12S 12S 123 123 121 118 118 123.5 118 119 126 123 123 118 125 125 126 125 125 125 125 120 126 127 124 119 133 133 136 134 134 134 134 129 136 135 131 128 100 895 21 160 160 9 100 10.7 10.7 111 18.5 100 285 2320 60 450 450 22 285 16 13.3 320 23 285 GP SERIES - Two-Way Balanced Armature Speaker 7.90 x 4.29 x 5.76 (mm) SENSITIVITY IN dB RELATIVE TO 1.0V/0.1 Pa The GP is a two-way balanced armature system with high output capabilities for professional in-ear applications. Enables customized cross-over response to achieve target frequency response. * High performance, low-profile two-way system * Customizable cross-over capabilities * Dual ported to mechanically tune each driver 125 120 115 105 100 95 90 85 2 20 3 4 5 6 7 8 9 200 2 3 4 5 6 7 8 9 2 3 4 5 6 7 8 9 2k 20k FREQUENCY (Hz) Model GP-30711-000 24 Port Location Sensitivity @ 1 kHz (dB SPL) Sensitivity @ 1st Peak (dB SPL) Max SPL @ 1st Peak (dB SPL) DC Resistance (Ohms) Impedance @ 500 Hz (Ohms) 12S (Dual) 108.5 118 128 58 67 Note: All performance curves are typical www.knowles.com SPECIALTY TRANSDUCERS - Speakers CI SERIES - Balanced Armature Speaker 9.47 x 7.18 x 4.10 (mm) Knowles' largest and most powerful speaker, the CI series is the speaker of choice. With its high efficiency and a 143dB SPL maximum output, the CI speaker provides optimal low frequency performance. 135 SENSITIVITY IN dB SPL * Two-terminal zero-bias and three-terminal center-tapped configurations * Various port locations, coil impedances, termination configurations, and frequency responses available 125 115 105 95 100 2 3 4 5 2 6 7 8 9 1k 3 4 5 6 7 8 9 10k FREQUENCY (Hz) Model CI-22748-000 CI-22762-000 CI-22955-000 CI-22960-000 CI-28487-000 CI-28597-000 Port Location Sensitivity @ 1 kHz (dB SPL) Sensitivity @ 1st Peak (dB SPL) Max SPL @ 1st Peak (dB SPL) DC Resistance (Ohms) Impedance @ 500 Hz (Ohms) 12C 1S 12C 12C 1S 11S 125 125 125 125 125 125 128 128 128 128 128 128 138.5 138.5 138.5 138.5 138.5 138.5 75 51 20 100 24 20 250 175 68 @ 1kHz 400 100 @ 1kHz 68 @ 1kHz CM SERIES - Balanced Armature Speaker 8.38 x 16.64 DIA (mm) The CM Series delivers the benefits of balanced armature technology in a compact finished package. The CM is ideal for use in situations where a non-contacting headset is required, but signal voltage is limited - as is common for radios and wireless telephones. The CM also conserves battery power, and provides static shock protection for the user. SENSITIVITY IN dB SPL * Balanced-armature, magnetic technology to give high efficiency, stability and reliability * High acoustic efficiency enables sufficient sound output even when limited power is available * In-built static protection * Lightweight, matt-black, plastic housing * Ergonomically designed with rounded edge to fit the concha * High-quality sound output * Tailored bandwidth for superb speech intelligibility Model CM-23152-000 CM-23299-000 CM-28421-000 CM-28431-000 CM-28452-000 125 115 105 95 85 100 2 3 4 5 2 6 7 8 9 1k 3 4 5 6 7 8 9 10k FREQUENCY (Hz) Port Location Sensitivity @ 1 kHz (dB SPL) Sensitivity @ 1st Peak (dB SPL) Max SPL @ 1st Peak (dB SPL) DC Resistance (Ohms) Impedance @ 500 Hz (Ohms) Face Face Face Face Face 103 103 103 103 103 109 109 109 109 109 119 119 119 119 119 69 69 100 10.5 100 150 150 360 30 360 www.knowles.com Note: All performance curves are typical 25 SPECIALTY TRANSDUCERS - Speakers MR SERIES - Waterproof Speaker 22.12 DIA x 9.3 (mm) The MR Series Assemblies consist of a speaker element attached to a waterproof bellows assembly. They may be panel mounted, and are suitable for outdoor use or repeated submersion. 125 Model MR-23333-000 SENSITIVITY IN dB SPL * Highly waterproof - no loss of performance after immersion in 15m water * Corrosion resistant * Withstands explosive decompression * Design proven in rugged environments * Leads attached * High resistance to mechanical shock * Acoustically transparent bellows * Resists effects of mud, sand, and salt encrustation 115 105 95 85 2 3 4 5 6 7 8 9 100 2 3 4 5 1k 6 7 8 9 10k FREQUENCY (Hz) Port Location Sensitivity @ 1 kHz (dB SPL) Sensitivity @ 1st Peak (dB SPL) Max SPL @ 1st Peak (dB SPL) DC Resistance (Ohms) Impedance @ 500 Hz (Ohms) Face 100 119.5 129 10 21 CB SERIES - Balanced Armature Speaker 25.15 x 25.15 x 9.65 (mm) The CB Series Transceiver offers high electro-acoustic efficiency to conserve power in push-to-talk radio handsets and other battery operated equipment. The CB is available with mounting pins to facilitate assembly to a PC board. Model CB-23817-000 is designed to survive submersion in water. SENSITIVITY IN dB SPL 90 * Excellent sound quality * High speech intelligibility, stability, and reliability * Suitable for PCB mounting * Can function as a microphone or beeper * Various impedances * Face and edge port locations available 80 70 60 50 2 3 4 5 2 6 7 8 9 100 3 4 5 6 7 8 9 10k 1k FREQUENCY (Hz) Model CB-22849-000 CB-22850-000 CB-23817-000 26 Port Location Sensitivity @ 1 kHz (dB SPL) Sensitivity @ 1st Peak (dB SPL) Max SPL @ 1st Peak (dB SPL) DC Resistance (Ohms) Impedance @ 500 Hz (Ohms) Edge Edge Edge 73 73 83 86 86 97 96.5 96.5 107 11.5 21.5 21.5 24 48 48 www.knowles.com CUSTOM ASSEMBLIES FINISHED GOODS Wherever your design ideas take you, Knowles Acoustics can support your need for customized audio assemblies. Our custom Finished Goods offer a turnkey solution utilizing the acoustic expertise and components of Knowles Acoustics. COMPLETE SOLUTION Knowles Acoustics Finished Goods program offers reduced time to market at an ultimately reduced total manufacturing cost of acoustic product ownership. Support in design, application, assembly and testing are all elements included in our services. Off-the-shelf designs are also available. Design Support Manufacturing Services * Industrial * Mechanical * Application Tuning * Assembly * Cabling * Testing * Utilization of Knowles Acoustic components MARKET APPLICATIONS Ultimately, our mission is to improve the acoustic interface and simplify the manufacturing process for customers. Our long term acoustic history provides the expertise for markets and customers of: * Mobile media products * Industrial communications * Consumer electronics applications MARKET MATRIX Assembly Designs Single Ear Stereo Microphone MP3 Mobile Phone Smart Phone/PDA Notebook Industrial Comm. Collaborate in-depth with Knowles Acoustics to arrive at an integrated component and assembly design to manufacture for you. www.knowles.com 27 ACOUSTIC SOFTWARE INTELLISONICTM The intelligibility and use of mobile communications are often impeded by the impact of noise from the immediate environment. IntelliSonic is a software-based speech enhancement technology that when coupled with Knowles' microphones, reduces the effects of reverberation, directionally interfering speech, background noise and annoying acoustic echo. COMPLETE SOLUTION - Integrated Systems When you consider the interdependency of microphone design, acoustic porting, and sound signal conditioning, it's easy to see why Knowles Acoustics has taken an integrated approach to your acoustic system needs. FEATURES * Noise suppression 12dB-16dB * Interference cancellation via beam-forming array 25dB * Acoustic echo cancellation 25dB * Speech bandwidth 8kHz * Adjustable acceptance and look angles * Fully adaptive system adapts to changing acoustic environment * Rich application programming interface (API) set * Real-time processing * Low speech distortion APPLICATIONS Platforms such as tablets, laptops, ultra-mobile personal computers (UPCs), and other mobile computing devices have a number of applications that would benefit from IntelliSonic to enhance the user experience and final product perception. * VoIP Telephony * Command and Control * Voice recognition * Dictation * Language Translation * Voice Annotation * Audio Note Taking PRODUCT MATRIX IntelliSonicTM Attenuates Unwanted Sounds Product Code DXEC01 DXEC02 # of Microphones Noise Reduction Array Processing Echo Cancellation 1 2 - Unprocessed Signal Using IntelliSonicTM (Visual output of recordings using same microphone) SUPPORTED PLATFORMS (OS Support) OS Microsoft Windows XP/2000 Microsoft Windows 7/Vista Microsoft Windows Mobile and its Derivatives Model Codec WDM Upper Filter AC'97 and HDAudio WaveRT APO AC'97, HDAudio and USBAudio Static library or integrated into codec driver binary (requires customization) LICENSING Evaluation licenses are available upon signing an NDA and Software Evaluation Agreement. Volume Licensing is available for OEM products. Please contact Knowles Sales Representatives for terms. 28 www.knowles.com MICROPHONE AND SPEAKER BASICS MICROPHONES Microphones measure sound pressure. Inside a Knowles microphone is a thin flexible diaphragm, an electrically charged plate, and an amplifier (Fig. 1). The output voltage is proportional to changes in the small separation between the diaphragm and the charged plate (Fig. 2). As sound pressure inside the front cavity increases, the diaphragm is pushed closer to the plate. As the pressure decreases, it moves further away. The motion of the diaphragm produces a small electrical signal that is amplified by a miniature circuit inside the microphone. The sensitivity of a typical Knowles' microphone is measured in units of dB relative to 1 Volt per 0.1 Pascal. Fig 1: Cross section of a Knowles EM microphone OUTPUT TERMINAL WIRE AMPLIFIER SOUND PRESSURE CHARGE PLATE DIAPHRAGM FRONT CAVITY FIG. 2: EM diaphragm and electret CHARGE PLATE DIAPHRAGM AIR GAP SEPARATION www.knowles.com Note: All performance curves are typical 29 MICROPHONE AND SPEAKER BASICS SPEAKERS The speaker converts an electrical signal into sound. A cross section of a typical Knowles speaker is shown in Fig. 3. The basic components of the speaker are: a coil of wire, a metal U-shaped reed called the armature, a pair of permanent magnets, a drive rod, and a diaphragm. The coil and armature act as an electromagnet. An alternating current in the coil causes the polarity of the armature to switch back and forth from north to south. The free end of the armature bends slightly up and down as it is attracted alternately to the top and bottom magnets (Fig. 4). The diaphragm, pulled along by the drive rod, pumps air in and out of the speaker. The mechanical motion of the armature is thus converted into sound. The sound output of a typical Knowles' speaker is measured in units of dB SPL (sound pressure level) relative to 20 Pa. Fig. 3: Cross section of a Knowles EH speaker INPUT TERMINAL COIL DRIVE ROD DIAPHRAGM MAGNETS ARMATURE Fig. 4: The motor of the speaker has a coil, an armature, and a pair of permanent magnets. 30 www.knowles.com Globally Positioned AMERICAS EMEA / ASIA PACIFIC Knowles Korea Knowles Europe, Middle East & Africa Knowles Japan Knowles China Knowles North & South America Knowles Taiwan Knowles Malaysia Knowles Singapore Knowles Australia World Headquarters Manufacturing Sales & Application Engineering Knowles Acoustics maintains sales, marketing, engineering and manufacturing globally. For immediate assistance on your specific requirements, please call the nearest facility listed below. www.knowles.com AMERICAS: Knowles Acoustics 1151 Maplewood Drive Itasca, IL 60143 U.S.A. Phone: 630-250-5930 Fax: 630-250-5932 EUROPE: Knowles Acoustics Havnevej 7 DK-4000 Roskilde Denmark Phone: +45 70 25 35 70 Fax: +45 70 25 35 71 (c) 2010 Knowles Acoustics Printed In USA JAPAN: Knowles Acoustics 2-2-16 Sangenjaya Setagaya-Ku, Tokyo 154-0024 Japan Phone: 81-3-5779-8503 Fax: 81-3-5779-8523 KOREA: Knowles Acoustics #1107, Parkview Tower, Jeongja-dong 6, Bundang-gu, Seongnam-si, Kyeonggi-do, Korea Phone: 82-31-712-2223 Fax: 82-31-712-3314 ASIA: Knowles Acoustics 5F, No. 129, Lane 235, Bauchiau Rd. Shindian City, Taipei 23145, Taiwan Phone: 886-2-8919-1799 Fax: 886-2-8919-1798 KA-003-03-10V4