Preliminary

PUI Audio, Inc. A Projects Unlimited Company, 3541 Stop Eight Road, Dayton, OH 45414

Tel: (937) 415-5901 Fax: (937) 415-5925

Low-Noise Bottom Port

Piezoelectric MEMS Microphone

with Wake on Sound Feature

Data Sheet

PMM-3738-VM1010-R

PUI Audio, with Vesper’s exclusive technology, presents the PMM-3738-VM1010-R:

The world’s first ZeroPower Listening™ piezoelectric MEMS microphone designed

for ultra-low power always listening solution; delivering voice activation to battery-

powered devices.

Features:

•

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Full audio output on wake-up

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Capable of voice detection with just 18 µW

operating power

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Extends Battery life up to 10x

•

Dust and moisture resistant (IP test results

pending)

The PMM-3738-VM1010-R is a single-ended

analog MEMS microphone with Wake on Sound.

The Wake on Sound mode allows for detection of

voice activity while consuming only 5 µA of supply

current (9 µW of power). In Wake on Sound mode,

a sound in the vocal band above the level threshold

instantly alerts a processor of an acoustic event.

The processor (DSP or Voice Processor) then

switches the PMM-3738-VM1010-R into Normal

mode, with full audio output within 100

microseconds! Fast enough for the microphone to

capture the triggering sound and pass it along for

processing. This is the system architecture for

ZeroPower Listening™.

Wake on Sound delivers voice activation to battery-

powered voice-interface consumer devices—while

drawing nearly zero power—such as smart

speakers, smart TV remote controls, smart

headphones, and IoT smart home products.