Preliminary Wake on Sound Piezoelectric MEMS Microphone Evaluation Module Data Sheet PMM-3738-VM1010-EB-R PUI Audio, with Vespers exclusive technology, presents the worlds first ZeroPower Listening piezoelectric MEMS microphonethe PMM-3738-VM1010-Rdesigned for ultra-low power, always-listening devices. The PMM-3738-VM1010-EB-R provides users a simple way to evaluate this microphones performance. Features: ZeroPower Listening technology Full audio output on wake-up Capable of voice detection with just 9 W operating power Extends Battery life up to 10x Dust and moisture resistant (IP test results pending) Easy-to-use evaluation board 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 A of supply current (9 W of power). In Wake on Sound mode, a sound in the vocal band above the level threshold (set by the designer) instantly alerts a processor of an acoustic event to wake-up the device. Wake on Sound delivers voice activation to battery- powered voice-interface consumer deviceswhile drawing nearly zero powersuch as smart speakers, smart TV remote controls, smart headphones, and IoT smart home products. PUI Audio, Inc. A Projects Unlimited Company, 3541 Stop Eight Road, Dayton, OH 45414 Tel: (937) 415-5901 Fax: (937) 415-5925 Preliminary Specifications All specifications are at 25C, VSupply = 1.8 V unless otherwise noted. Parameter Symbol Conditions Min. Typ. Max. Units Normal Mode Acoustic Specifications Sensitivity 1 kHz, 94 dB SPL -41 -38 -35 dBV dB(A) Signal-to-Noise SNR 94 dB SPL at 1 kHz signal, 60 Ratio 20 Hz 20 kHz, A-weighted Noise Signal-to Noise SNR 94 dB SPL at 1 kHz signal, 62 dB(A) Ration Voice Band 20 Hz 8 kHz, A-weighted Total Harmonic THD 94 dB SPL 0.1 % Distortion dB SPL Acoustic Overload AOP 10.0% THD 122 Point Roll Off Frequency -3db at 1 kHz 100 Hz Directivity Omni Wake on Sound Acoustic Specifications Acoustic PaTH Peak Acoustic Stimulus 78 SPL 1 Threshold Rg = Open Acoustic PaTH Peak Acoustic Stimulus, 72 SPL 1 Threshold Rg = 300 kOhm PUI Audio, Inc. A Projects Unlimited Company, 3541 Stop Eight Road, Dayton, OH 45414 Tel: (937) 415-5901 Fax: (937) 415-5925