SmartSound MEMS Microphones

NEWLY ANNOUNCED AT CES 2021

World’s Lowest Power PDM Mic with Acoustic Activity Detect

T5838

The T5838 is a 68dB SNR, 133dB AOP, and world’s lowest power Pulse Density Modulation (PDM) digital MEMS microphone. Featuring “Acoustic Activity Detect” which supports configurable wake-on-sound functionality at power levels as low as 20 µA.

WINNER – SENSORS EXPO

Best of Sensors Award 2020


IoT Category

ICS-40800

Congratulations to our amazing Microphone team for winning Best of Sensors Award 2020 in the IoT category! The award spotlights the year’s best innovations, technologies, teams and individuals in the sensors industry, and we are humbled to be named a winner. We will continue to drive innovation and produce the best MEMS Microphones in the industry.

What We Offer

Digital MEMS Microphones

Our Digital MEMS Microphones join high-performance MEMS elements with state-of-the art wide dynamic range CMOS technology. We offer PDM (Pulse Density Modulated) digital outputs along with state of the art fully decimated outputs.

Analog MEMS Microphones

Our Analog MEMS Microphones offer significant performance improvements compared to electret microphones, which have been in use for decades. They have similar or better SNR in smaller size, provide consistent performance part-to-part and over temperature, and offer a wider dynamic range.





TDK Featured Stories

Featured Video: TDK SmartSound™ Tech Explainer

What's New

Introducing the latest in our SmartSound™ Family, ICS-40638. Offering an ultra-high Acoustic Overload Point (AOP) of 138 dB Sound Pressure Level (SPL) exceptionally efficient 170 µA low power operation and high Signal to Noise Ratio (SNR) of 63dB, our latest bottom port analog microphone is ideal for outdoor, industrial and even high temperature environments.

ICS-40638 Applications

Outdoor

Industrial

High Temperature

Designing for outdoor applications is much easier with our High AOP, high SNR and high dynamic range microphones.

High Acoustic Overload Point (AOP) means that functionality is not limited by very noisy industrial environments.

With mics capable of operating at temperatures of up to 105°C (221°F), the range of applications greatly expands.

ICS-40638 Products

ICS-40638

Introducing the latest in our SmartSound™ Family, the ICS-40638. Offering an ultra-high Acoustic Overload Point (AOP) of 138 dB Sound Pressure Level (SPL) exceptionally efficient 170 µA low power operation and high Signal to Noise Ratio (SNR) of 63dB, our latest bottom port analog microphone is ideal for outdoor, industrial and even high temperature environments.

EV_ICS-40638-FX

Simple evaluation board which allows for quick evaluation of the ICS-40638 analog MEMS microphone. The small size and low profile of the flexible PCB enables direct placement of the microphone into a prototype or an existing design for an in situ evaluation.

SmartSound Digital Microphone Applications

Microphone Arrays

Bluetooth Headsets

Security Systems

Smartphones

With multiple mics configured in an array, the resulting beam pattern makes it easy for products like smart assistants to hear your voice commands from across the room.

The smaller your bluetooth headset gets, the smaller the battery, which means our low power mics can help keep you chatting for longer.

Our high signal to noise ratio lets your security system notify you when someone is at the door, not when someone is driving down the street, giving you one less thing to worry about.

You want your voice to sound the best when you take a phone call and with our wide dynamic range and high sound to noise ratio, you’ll sound great, no matter the environment.

Recently Released

T3902

The T3902 is a low‐power, low‐noise digital MEMS microphone in a small package. The T3902 consists of a MEMS microphone element and an impedance converter amplifier followed by a fourth‐order Σ‐Δ modulator. The pulse density modulated (PDM) interface allows two microphones to be time multiplexed on a data line using a single clock.

T5818

The T5818 is a Pulse Density Modulation (PDM) microphone with a dynamic range of 107dB at 590µA, the widest dynamic range in the industry at the lowest power, which allows for excellent acoustic performance in environments that shift from very quiet to very loud, such as far field voice pickup barge-in for Smart Speaker applications.

T3902 & T5818 EVBs

These allow quick evaluation of the microphone performance & the small size and low profile of the flexible PCB enables direct placement of the microphone into a prototype or an existing design for an in situ evaluation.

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