NewsCUI Devices Expands Audio Product Line with High-Performance MEMS Microphones

CUI Devices Expands Audio Product Line with High-Performance MEMS Microphones

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CUI Devices’ Audio Group today announced the addition of three new MEMS microphone models boasting wide frequency ranges from 20 to 20,000 Hz. The CMM-2718AB-38162W-TR, CMM-2718AB-38164W-TR, and CMM-2718AT-38164W-TR are all analog MEMS microphones featuring -38 dB sensitivity ratings and tight sensitivity tolerances of ±1 dB. Offering top or bottom port versions, these wide frequency range MEMS microphones are housed in compact, surface mount packages measuring as small as 2.75 x 1.85 x 0.90 mm, making them ideal for a variety of portable electronic devices and wearables.

A MEMS microphone, also known as a Micro-Electro-Mechanical System microphone, is a type of microphone that utilizes micro-scale mechanical components and integrated circuitry to convert sound waves into electrical signals. MEMS microphones are based on the principles of microfabrication technology, which allows for the miniaturization of components on a silicon substrate.

Unlike traditional condenser or dynamic microphones, MEMS microphones have a tiny diaphragm that moves in response to sound waves, generating electrical signals proportional to the sound pressure. The diaphragm is typically made of a thin membrane suspended above a backplate, and its movement creates changes in capacitance, which are then converted into electrical signals using integrated circuitry.

MEMS microphones offer several advantages over traditional microphones. They are smaller in size, consume less power, and can be easily integrated into compact electronic devices. They also have excellent frequency response, low distortion, and high signal-to-noise ratio, making them ideal for applications requiring high-quality audio capture.

Due to their small size and reliable performance, MEMS microphones are widely used in various applications, including smartphones, tablets, laptops, wearable devices, automotive systems, home appliances, and IoT devices. They have revolutionized the audio industry by enabling high-fidelity sound capture in compact and portable devices.

The models carry acoustic overload points (AOP) of 123 or 128 dB SPL, signal-to-noise ratios of 62 or 64 dBA, and current consumption as low as 150 µA. All models are omnidirectional and reflow solder compatible.

The CMM-2718AB-38162W-TR, CMM-2718AB-38164W-TR, and CMM-2718AT-38164W-TR are available immediately with prices starting at $0.86 per unit at 500 pieces through distribution. Please contact CUI Devices for OEM pricing.

Michal Pukala
Electronics and Telecommunications engineer with Electro-energetics Master degree graduation. Lightning designer experienced engineer. Currently working in IT industry.