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Sensors

Sensors

Special application and performance requirements are addressed by our unique accelerometer and ultrasonic designs.

Multicore DSP

Multicore DSP

The Knowles AISonic™ Audio Edge Processor IA8201 is a high-performance, ultra-low power audio-centric OpenDSP supporting up to 4 mics, multiple high speed interfaces and GPIOs in two package options (eWLB and QFN). IA8508 combines three Tensilica-based, audio-centric DSP cores with an ARM Cortex M4 to maximize design flexibility. The DSP cores provide low-latency, high-capacity processing for audio and machine learning computations, while the Cortex M4 blends signal processing with general-purpose controller capability. The platform leverages 4MB of user available RAM to enable multiple simultaneous use cases and can be advantageously configured into an ultra-low power system. See page 2 for detailed core information.

Balanced Armature Resource Center

Balanced Armature Resource Center

What is balanced armature? The advantages of balanced armature drivers Balanced armature applications Multi and hybrid systems The Knowles difference View and download white papers, videos and presentations

Boom

Boom

Knowles의 붐 마이크는 유연하거나 견고한 구성 모두를 위해 설계되었으며 가깝거나 먼 거리의 현장 응답에 대한 소음 절감 및 고주파수 크로스오버와 같은 성능 옵션을 제공합니다. 길이 및 말단 유형은 어플리케이션 필요 사항을 충족하기 위해 맞춤화되어 있습니다. 헤드셋 및 오디오 시스템 마케터들이 Knowles 붐 디자인을 구하는 경우가 종종 있습니다. 상업, 정부 및 산업 디자이너들과의 협업을 통해 항공기, 군사, 응급 요원 및 고소음 제조 환경을 위한 새로운 헬멧 어플리케이션을 구현할 수 있었습니다.

Ultrasonic

Ultrasonic

While Knowles industry-leading MEMS silicon surface mount microphone technology, in bottom port configuration offer flat frequency response in the standard audio bandwidth, they are also capable to support even higher frequency bands. Sensor designs are possible across a wide spectrum of applications requiring highly miniaturized solutions for sensing and actuation/signaling.

MQM Series

MQM Series

The MQM is the smallest and most production friendly hearing instrument microphone offered. Utilizing Knowles MEMS technology, the MQM allows for efficient reflow soldering assembly. The MQM offers unmatched performance in reliability and environmental stability. The MQM also offers best in class vibration sensitivity performance. It is ideal for matched omni-directional pair applications as well as applications where the smallest possible size is required.

EK Series

EK Series

Introduced in 1986, the EK is the lowest noise Knowles microphone. Its high electroacoustic sensitivity and low noise make this microphone an excellent choice for applications where space is not an issue. The EK can also be used in directional applications as a matched omni-directional pair.

EM/BEM Series

EM/BEM Series

The EM is the most popular omni-directional microphone offered. The superior performance of the low noise EM makes it the choice of hearing instrument manufacturers for all hearing instrument sizes. The EM can also be used in directional applications as a matched omni-directional pair. The BEM is an improved version of the EM microphone. It offers enhanced PFA performance, as well as power-on reset and an electrical high pass filter. The BEM is ideal in directional applications as a matched omni-directional pair.

Accelerometers

Accelerometers

The BU Series piezo-ceramic accelerometer has output from 20 Hz to above 10 kHz, and is used primarily as a contact microphone for high noise environments. It may also be used as an accelerometer with lightweight structures. As a contact microphone, the BU may be worn on the throat, or touching a bony part of the head (top, temple, or mastoid bone). BU has been integrated into helmet designs for radio communication for military and emergency services.

NR Series

NR Series

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 and PNR Series for details)

FG/BFG Series

FG/BFG Series

The FG Series microphone is the world's smallest electret condenser microphone. Its cylindrical shape and compact size provide for superior fit rates. The FG can also be used in directional applications as a matched omni-directional pair. The BFG is an improved version of the FG microphone and offers enhanced PFA performance and power-on reset for instant settling time. Its electrical high pass filter enabling custom corner frequencies makes the BFG ideal for use in directional applications as a matched omni-directional pair.

EA Series

EA Series

Introduced in 1976, the EA is a time-tested electret condenser microphone. It is widely used in more cost sensitive applications.

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