MIC ELECTRET NOISE CANCEL WTRPRF

WP-23501-000

Manufacturer Part NumberWP-23501-000
DescriptionMIC ELECTRET NOISE CANCEL WTRPRF
ManufacturerKnowles Acoustics
SeriesWP
TypeElectret, Waterproof
WP-23501-000 datasheets
 


Specifications of WP-23501-000

Sensitivity-54dB ±3dBVoltage - Rated1.3V
Current300µASize / DimensionRectangular - 5.56mm L x 3.99mm W x 2.21mm H
Impedance2.5K OhmFrequency100Hz ~ 4kHz
TerminationSolder PadsDirectionNoise Cancelling
Port LocationBottom and TopDirectional PropertiesNoise Canceling
Operating Voltage1.3 VTermination StyleWire Leads
Dimensions4.72 mm L x 3.76 mm W x 1.1 mm DDepth1.1 mm
Length4.72 mmWidth3.76 mm
Transducer FunctionMicrophoneDevice TypeElectret, Waterproof
DirectivityNoise CancellingExternal Diameter3.99mm
Terminal TypeSolder PadsOuter Diameter3.99mm
Rohs CompliantYesLead Free Status / RoHS StatusContains lead / RoHS non-compliant
Filter Type-S/n Ratio-
Other names423-1011
WP-23501
WP-3501
WP3501
  
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Acoustic Interface Design Guide
MEMS MICROPHONES
ECMs
SPECIALTY MICROPHONES
SPECIALTY SPEAKERS
CUSTOM ASSEMBLIES
ACOUSTIC SOFTWARE
MICROPHONE AND SPEAKER BASICS

WP-23501-000 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

    ... It all starts with your application 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 MICROPHONES - ECMs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8 SPECIALTY TRANSDUCERS - MICROPHONES . . . . . . . . . . . . . . . . 9-14 ACCELEROMETERS & DAMPERS . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 SPECIALTY TRANSDUCERS - SPEAKERS . . . . . . . . . . . . . . . . . . 15-23 CUSTOM ASSEMBLIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 ACOUSTIC SOFTWARE ...

  • Page 4

    ... 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 IntelliSonic a precisely customized sound. • New digital mics eliminate analog noise • ...

  • Page 5

    ... Standard 1.5 to 3.6v Enhanced 1.5 to 3.6v Standard 1.6 to 3.6v Standard -26 ref Full Scale) ZERO HEIGHT MIC ™ Supply Voltage Sensitivity @1kHz RF Filtering (min-max) 1.5 to 3.6v Enhanced 1.5 to 3.6v Enhanced www.knowles.com MICROPHONES – MEMS - 100 1k 8k FREQUENCY (Hz) Output Maximum Impedance ...

  • 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 sizes • ...

  • Page 7

    ... Part Number Sensitivity (db) Filter MD9745APA-1 -41.0±3 10pF MD9745APZ-F -42.0±2 None 9.7x4.5 FREQUENCY RESPONSE 10k FREQUENCY (Hz) www.knowles.com MICROPHONES – ECMs Filter Termination Solder Type Solder Type Solder Type Pin Type PCB, Bullseye Solder Type Solder Type 6x1.5 FREQUENCY RESPONSE -10 -20 - ...

  • 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

    ... 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 FB Series and PNR/PWP Series for details.) • Integral FET amplifier • ...

  • Page 11

    ... Omnidirectional Microphone 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. • ...

  • Page 12

    ... Close-talking (noise-canceling) • Corrosion resistant • Withstands explosive decompression • Excellent environmental performance • High resistance to mechanical shock Sensitivity @1kHz (dB re1V/1Pa) WP-23501-000 -34.0±3 Noise Canceling WP-23502-000 -32.0±3 Omnidirectional WP-23502-P07 -32.0±3 Omnidirectional WP-23502-P16 -32.0±3 Omnidirectional WP-23849-C36 -32.0±3 ...

  • Page 13

    ... NR-23160-000 Noise Canceling FB-25946-000 WP-23501-000 Noise Canceling FB-25624-000 WP-23501-000 Noise Canceling PNR/PWP SERIES – Boom Microphone PNR/PWP Series are available in plastic, rigid booms, which utilize either the microphone element, giving superb noise rejection and high-frequency crossover of near and far field responses. The boom microphones are utilized in a variety of aircraft audio systems and radio communication helmets ...

  • 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 from vibrations at the throat or from bony parts of the head, and are compatible with helmet or headset applications. ...

  • Page 15

    Specialty Transducer Speakers 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 ...

  • Page 16

    SPECIALTY TRANSDUCERS – Speakers FK SERIES – Balanced Armature Speaker 5.00 x 2.73 x 1.93 (mm) The world’s smallest balanced-armature speaker, the FK Series is designed for applications where size is the most important design concern. • 114dB SPL maximum ...

  • Page 17

    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. • Lower low/mid band sensitivity ...

  • Page 18

    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 ...

  • Page 19

    FED SERIES – Balanced Armature Speaker 6.32 x 4.31 x 2.47 (mm) The addition of Ferrofluid ™ to Knowles ED series speakers improves mechanical shock survival and provides peak damping to smooth frequency response. • Ferrofluid ™ damped with 2dB, ...

  • 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 ...

  • 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 ...

  • Page 22

    SPECIALTY TRANSDUCERS – Speakers SR SERIES – Balanced Armature Speaker 8.84 DIA x 5.00 (mm) 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 ...

  • Page 23

    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. • ...

  • 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

    ... 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 – ...

  • 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 small separation between the diaphragm and the charged plate (Fig. 2). ...

  • Page 27

    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, ...

  • 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 ...