PMM-3738-VM1000-R

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 partto-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 with no sensitivity degradation. 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 -41 -38 -35 dBV Acoustic Specifications Sensitivity 1 kHz, 94 dB SPL Signal-to-Noise Ratio SNR 94 dB SPL at 1 kHz signal, 20Hz to 20kHz, A-weighted Noise 61 dB(A) Signal-to-Noise Ratio Voice Band SNR 94 dB SPL at 1 kHz signal, 20Hz to 8kHz, A-weighted Noise 63 dB(A) Total Harmonic Distortion THD 94 dB SPL 0.1 % Acoustic Overload Point AOP 10.0% THD 125 dBSPL -3db at 1KHz 85 Hz Roll Off Frequency Directivity Omni Polarity Increase in sound pressure Increase in output voltage Electrical Specifications Supply Voltage 1.6 Supply Current 1.8 3.6 V VSupply ≤ 3.6 V (TBR) 165 μA VDD = 1.8, 1kHz, 200mVPP Sine wave 55 dB VDD = 1.8, 217Hz, 100mVPP square wave, 20 Hz – 20kHz, A-weighted -85 dB(A) 400 Ω Output DC Offset 0.8 V Startup Time 100 μS Power Supply Rejection Ratio PSRR Power Supply Rejection PSR Output Impedance ZOUT 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 -0.3 to +3.6 V 160 dB re 20 μPa Operating Temperature Range -40 to +85 °C Storage Temperature Range -55 to +150 °C Supply Voltage Sound Pressure Level Mechanical Shock 10,000g per IEC 60028-2-27:2008 Vibration Per MIL-STD 883E, 2007.2 Typical Performance Characteristics 25 Normalized Frequency Response THD+N vs Amplitude 10 15 10 5 THD+N, % Sensitivity re 1kHz, dB 20 0 -5 1 0.1 -10 -15 -20 100 1000 Frequency, Hz 10000 0.01 90 100 110 120 Amplitude, dB SPL PUI Audio, Inc. A Projects Unlimited Company, 3541 Stop Eight Road, Dayton, OH 45414 Tel: (937) 415-5901 Fax: (937) 415-5925 130 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 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 PUI Audio, Inc. A Projects Unlimited Company, 3541 Stop Eight Road, Dayton, OH 45414 Tel: (937) 415-5901 Fax: (937) 415-5925 Applications Information Recommended drive circuit and external components. Solder Reflow Profile 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 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. PUI Audio, Inc. A Projects Unlimited Company, 3541 Stop Eight Road, Dayton, OH 45414 Tel: (937) 415-5901 Fax: (937) 415-5925