PMM-3738-VM1000-R

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This document contains data proprietary to PUI Audio Inc. Any use or reproduction, in any form, without prior written permission of PUI Audio Inc. is prohibited. ©2017, PUI Audio Inc. 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 Data Sheet PMM-3738-VM1000-R PUI Audio, featuring Vesper’s exclusive technology, presents the world’s first and only piezoelectric MEMS microphone. The PMM-3738-VM1000-R provides superior performance and quality in all environments. Features:

• Unique piezoelectric MEMS transducer
• Very-low noise floor
• Low part-to-part variation
• High dynamic range
• Stable performance in all conditions
• Dust and water resistant to IP57 The PMM-3738-VM1000-R is a low noise, low part- to-part variation, high dynamic range, single ended analog output piezoelectric MEMS microphone. This microphone consists of a piezoelectric sensor and circuitry to buffer and amplify the output. The PMM-3738-VM1000-R has a small 3.76 mm X 2.95 mm X 1.1 mm package. This microphone is reflow solder compatible without sensitivity degradation.

This document contains data proprietary to PUI Audio Inc. Any use or reproduction, in any form, without prior written permission of PUI Audio Inc. is prohibited. ©2017, PUI Audio Inc. PUI Audio, Inc. A Projects Unlimited Company, 3541 Stop Eight Road, Dayton, OH 45414 Tel: (937) 415-5901 Fax: (937) 415-5925 Specifications All specifications are at 25°C, VSupply = 1.8 V unless otherwise noted. Parameter Symbol Conditions Min. Typ. Max. Units Acoustic Specifications Sensitivity 1 kHz, 94 dB SPL -41 -38 -35 dBV Signal-to-Noise Ratio SNR 94 dB SPL at 1 kHz signal, 20Hz to 20kHz, A-weighted Noise dB(A) Signal-to-Noise Ratio Voice Band SNR 94 dB SPL at 1 kHz signal, 20Hz to 8kHz, A-weighted Noise dB(A) Total Harmonic Distortion THD 94 dB SPL 0.1 Acoustic Overload Point AOP 10.0% THD 127 dBSPL Roll Off Frequency -3db at 1KHz Hz Directivity Omni Polarity Increase in sound pressure Increase in output voltage Electrical Specifications Supply Voltage 1.6 1.8 3.6 V Supply Current VSupply ≤ 3.6 V (TBR) 165 μA Power Supply Rejection Ratio PSRR VDD = 1.8, 1kHz, 200mVPP Sine wave dB Power Supply Rejection PSR VDD = 1.8, 217Hz, 100mVPP square wave, 20 Hz – 20kHz, A-weighted -85 dB(A) Output Impedance ZOUT 400 Ω Output DC Offset 0.8 V Startup Time 100 μS

This document contains data proprietary to PUI Audio Inc. Any use or reproduction, in any form, without prior written permission of PUI Audio Inc. is prohibited. ©2017, PUI Audio Inc. PUI Audio, Inc. A Projects Unlimited Company, 3541 Stop Eight Road, Dayton, OH 45414 Tel: (937) 415-5901 Fax: (937) 415-5925 Absolute Maximum Ratings Parameter Rating Units Supply Voltage -0.3 to +3.6 V Sound Pressure Level 160 dB re 20 μPa Operating Temperature Range -40 to +85 °C Storage Temperature Range -55 to +150 °C Mechanical Shock 10,000g per IEC 60028-2-27:2008 Vibration Per MIL-STD 883E, 2007.2 Typical Performance Characteristics Environmental Robustness IP adherence is evaluated by 1 kHz Sensitivity spec post stress Ingress Protection Type Description Dust Resistance IP5X; Water Immersion IPX7; 2 hours drying time, normal dry environment

This document contains data proprietary to PUI Audio Inc. Any use or reproduction, in any form, without prior written permission of PUI Audio Inc. is prohibited. ©2017, PUI Audio Inc. PUI Audio, Inc. A Projects Unlimited Company, 3541 Stop Eight Road, Dayton, OH 45414 Tel: (937) 415-5901 Fax: (937) 415-5925 Reliability Specifications Stress Test Description Temperature Cycling Test -40°C to +125°C, 850 cycles High Temperature Operating Life +125°C, 1000 hours, biased High Temperature Storage +125°C, 1000 hours, unbiased Temperature Humidity Bias +85°C, 85% RH, 1000 hours, biased Reflow 3 reflow cycles with peak temperature of +260°C ESD-HBM 3 discharges, all pins, ± 2kV ESD-CDM 3 discharges, all pins, ± 800V ESD-LID/GND 3 discharges to lid, ± 8kV ESD-MM 3 discharges, all pins, ± 200V ESD-Air Discharge 3 discharges, ± 15kV Applications Information Recommended drive circuit and external components.

This document contains data proprietary to PUI Audio Inc. Any use or reproduction, in any form, without prior written permission of PUI Audio Inc. is prohibited. ©2017, PUI Audio Inc. PUI Audio, Inc. A Projects Unlimited Company, 3541 Stop Eight Road, Dayton, OH 45414 Tel: (937) 415-5901 Fax: (937) 415-5925 Solder Reflow Profile Handling Instructions The Piezo MEMS microphone is very robust to harsh environments such as dust and moisture. However, to avoid mechanical damage to the microphone, we recommend using appropriate handling procedures when manually handling the parts, or when using pick-and-place equipment. The following guidelines will help to avoid damage:  Do not apply a vacuum to the bottom side of the microphone. A vacuum pen may be used with care on the top side only.  Do not apply very high air pressure over the sound port hole.  Do not insert any large particles or objects in the sound port hole. The microphone is resistant to small particles per IP5X specification.  Do not board wash or clean after the reflow process or expose the sound port to harsh chemicals.  Do not cover the sound port with tape during the solder reflow process.

This document contains data proprietary to PUI Audio Inc. Any use or reproduction, in any form, without prior written permission of PUI Audio Inc. is prohibited. ©2017, PUI Audio Inc. PUI Audio, Inc. A Projects Unlimited Company, 3541 Stop Eight Road, Dayton, OH 45414 Tel: (937) 415-5901 Fax: (937) 415-5925 Dimensions and Pin Layout 3 4 6 5 2 1 Pin Number Pin Name Description

1 VOUT Analog Output Voltage

2 GND Ground

3 GND Ground

4 VDD Power Supply

5 GND Ground

6 GND Ground

PCB Design and Land Pattern Layout PCB Land Pattern Solder Stencil Pattern

This document contains data proprietary to PUI Audio Inc. Any use or reproduction, in any form, without prior written permission of PUI Audio Inc. is prohibited. ©2017, PUI Audio Inc. PUI Audio, Inc. A Projects Unlimited Company, 3541 Stop Eight Road, Dayton, OH 45414 Tel: (937) 415-5901 Fax: (937) 415-5925 Specifications Revisions Revision Description Date - Released from Engineering 4/3/2017 A Revised AOP from 125 to 127 dB 12/7/2017 Note: 1. All dimensions are in millimeters. 2. Specifications subject to change or withdrawal without notice. 3. This part is RoHS 2011/65/EU Compliant.