EH-23149-000 Knowles Acoustics, EH-23149-000 Datasheet

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EH-23149-000

Manufacturer Part Number
EH-23149-000
Description
SPEAKER BALANCED END PORT SMD
Manufacturer
Knowles Acoustics
Series
EHr
Type
Magnetic, Balanced Armature, End Portr
Datasheets

Specifications of EH-23149-000

Frequency Range
200Hz ~ 5.5kHz
Impedance
185 Ohm
Size / Dimension
5.19mm L x 3.55mm W x 3mm H
Sound Pressure Level
116dB
Termination
Solder Pads
Shape
Rectangular
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Rated
-
Power - Max
-
Material - Cone
-
Material - Magnet
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
EH-23149
EH-3149
EH-3149
Q2012472
Acoustic Interface Design Guide
MEMS MICROPHONES
ECMs
SPECIALTY MICROPHONES
SPECIALTY SPEAKERS
CUSTOM ASSEMBLIES
ACOUSTIC SOFTWARE
MICROPHONE AND SPEAKER BASICS

Related parts for EH-23149-000

EH-23149-000 Summary of contents

Page 1

... Acoustic Interface Design Guide MEMS MICROPHONES ECMs SPECIALTY MICROPHONES SPECIALTY SPEAKERS CUSTOM ASSEMBLIES ACOUSTIC SOFTWARE MICROPHONE AND SPEAKER BASICS ...

Page 2

... Discover 2 your next acoustic interface solution. Knowles Acoustics offers you a full spectrum of MEMS microphones, electret condenser 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 ...

Page 3

... 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 MICROPHONES - ECMs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8 SPECIALTY TRANSDUCERS - MICROPHONES . . . . . . . . . . . . . . . . 9-14 ACCELEROMETERS & DAMPERS . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 SPECIALTY TRANSDUCERS - SPEAKERS . . . . . . . . . . . . . . . . . . 15-23 CUSTOM ASSEMBLIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 ACOUSTIC SOFTWARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 MICROPHONE AND SPEAKER BASICS . . . . . . . . . . . . . . . . . . . . 26-27 www.knowles.com 3 ...

Page 4

MICROPHONES – MEMS SiSonic ™ MEMS Microphones The SiSonic ™ MEMS microphone series is entering its fourth generation of development, with product shipments exceeding 400 million units to date. The proven and evolving design series continues to support high-performance, high-density ...

Page 5

Ultra Mini Package - 3.76 x 2.95 x 1.10 (mm) • New Ultra Mini with footprint of 11mm • Flexible designs available with/without RF filtering and built in amplifier • Ideal for miniature consumer electronics ...

Page 6

MICROPHONES – ECMs Electret Condenser Microphones Electret Condenser Microphones (ECM) are for general use in all electronic products requiring a microphone. ECMs provide good acoustic performance and reliability under non-severe environmental conditions. • Highly efficient electrical specifications • Industry standard ...

Page 7

Omni-Directional – Size (mm) 6X1.3 6x1.5 6x2.2 6x2.7 6X5 -10 -20 -30 100 -10 -20 -30 100 Omni-Directional – 9.7 mm Size (mm) 9.7x4 -10 -20 -30 100 Notes: ...

Page 8

... FREQUENCY (Hz) Value Added Microphone Assemblies Knowles Acoustics has over 60 years experience with precision assembly for demanding applications. By allowing Knowles to work with your design engineers we are typically able to provide a lower overall cost (time to market, R&D expenses, production scrap and inventory issues) with some of the highest quality standards in the industry. ...

Page 9

... 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, amplifi ...

Page 10

SPECIALTY TRANSDUCERS – Microphones EK/EL SERIES – Microphone Omnidirectional (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 ...

Page 11

BJ SERIES – Microphone Omnidirectional, Noise Canceling 7.92 x 5.70 x 4.14 (mm) 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 ...

Page 12

SPECIALTY TRANSDUCERS – Microphones WP SERIES – Waterproof Microphone Omnidirectional, Noise Canceling 4.00 x 5.59 x 2.28 (mm) Knowles’ waterproof microphones survive immersion in water. The WP Series’ form factor is a very small size with low vibration sensitivity. The ...

Page 13

FB SERIES – Boom Microphone FB Series are available in metallic, flexible boom styles, which utilize a wide array of microphone elements, giving superb noise rejection and high-frequency crossover of near and far field responses. FB’s are utilized in a ...

Page 14

SPECIALTY TRANSDUCERS – Accelerometers & Dampers BU SERIES – Accelerometer 7.87 x 5.54 (mm) 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 ...

Page 15

... Knowles sub-miniature speaker designs are based on balanced armature technology 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 sub-assembled by Knowles for premium consumer electronics accessories ...

Page 16

... FH SERIES – Balanced Armature Speaker 5.09 x 2.80 x 2.59 (mm) 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. • Undamped, screen damped, internally damped, and Ferrofluid damped responses • ...

Page 17

... 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 Sensitivity @ 1kHz ...

Page 18

... Low distortion • Self-shielded for low magnetic radiation Sensitivity @ 1kHz (dB SPL) EH-23030-000 100 EH-23149-000 100 EH-27479-000 100 – Balanced Armature Amplified Speaker 5.18 x 3.54 x 3.04 (mm) ES SERIES EH size speaker with integrated Class D power amplifier • EH micro speaker, but with internal, highly-efficient, class D amplifier • ...

Page 19

... Balanced Armature Speaker 6.32 x 4.31 x 2.97 (mm) ED SERIES 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. • Undamped, screen damped, internally damped, and Ferrofluid damped responses • ...

Page 20

... SPECIALTY TRANSDUCERS – Speakers EC SERIES – Balanced Armature Speaker 7.57 x 4.31 x 3.67 (mm) 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 ...

Page 21

... 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. • High efficiency and low distortion • Various port locations, coil impedances, damping options, terminal confi ...

Page 22

... At 8.8mm diameter, the SR is the first round balanced armature speaker in the marketplace. SR offers output equivalent to the BK series and maximizes bass performance. • Round package facilitates earphone designs • Drop-in upgrade for moving coil dynamic speakers • Designed for high volume production • Balanced armature technology Sensitivity @ 1kHz ...

Page 23

... Can function as a microphone or beeper • Various impedances • Face and edge port locations available Sensitivity @ 1kHz (dB SPL) CB-22849-000 73 CB-22850-000 73 CB-23817-000 83 SPECIALTY TRANSDUCERS – Speakers Impedance @ 500Hz Max SPL @ 500Hz Port Location (Ohms) (dB SPL) Face 21 Impedance @ 500Hz Max SPL @ 500Hz Port Location (Ohms) (dB SPL) Edge ...

Page 24

... 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 • ...

Page 25

INTELLISONIC ™ 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 ...

Page 26

MICROPHONE AND SPEAKER BASICS 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 ...

Page 27

... 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 µPa. Fig. 3: Cross section of a Knowles EH speaker OUTPUT TERMINAL COIL Fig ...

Page 28

... Knowles North & South America 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. AMERICAS: EUROPE: Knowles Acoustics Knowles Acoustics ...

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