VM3000Low Noise PDM Digital Bottom Port Piezoelectric MEMS Microphone
PRELIMINARY DATASHEETTable below shows specifications for
Low Normal Mode(350kHZ < CLK < 900kHz) at 25°C, VDD = 1.8 V, CLK = 768kHz, unless otherwise noted.
Parameter Symbol Conditions Min. Typ. Max. Units94 dB SPL at 1 kHz signal, 20Hz- Signal-to-Noise Ratio SNR TBD dB(A) 20kHz, A-weighted Noise Signal-to-Noise Ratio, Voice 94 dB SPL at 1 kHz signal, 20Hz- SNR TBD dB(A) Band 8kHz, A-weighted Noise 94 dB SPL 0.1 Total Harmonic Distortion THD % 118 dB SPL TBD Acoustic Overload Point AOP 10.0% THD 122 dB SPL VDD = 1.8, 1kHz, 200mVPP Sine Power Supply Rejection Ratio PSRR TBD dB Wave VDD = 1.8, 217Hz, 100mVPP square Power Supply Rejection PSR TBD dB(A) wave, 20 Hz – 20kHz, A-weighted Supply Current CLK = 768kHz 400 μA
PDM DIGITAL SPECIFICATIONS Parameter Conditions Min. Typ. Max. UnitsLogic Input High 0.65*VDD VDD V sLogic Input Low -0.3 0.35*VDD V Logic Output High ILoad = 0.5mA 0.7*VDD VDD V Logic Output Low ILoad = 0.5mA 0 0.3*VDD V Driving Capability 100 pF
ABSOLUTE MAXIMUM RATINGS Parameter Rating UnitsSupply 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 Document Name: VM3000_Datasheet Page 4 of 12 Vesper reserves the right to alter the datasheet specifications Revision: U0.0.0 without notification. Vesper assumes no liability for the use of engineering samples and offers no warranty for this product.
[email protected] Document Outline GENERAL DESCRIPTION FEATURES APPLICATIONS ORDERING INFORMATION BLOCK DIAGRAM TYPICAL APPLICATION CIRCUIT TABLE OF CONTENTS SPECIFICATIONS PDM DIGITAL SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ENVIRONMENTAL ROBUSTNESS RELIABILITY SPECIFCATIONS MICROPHONE OPERATION MICROPHONE MODES TIMING SPECIFICATIONS TYPICAL PERFORMANCE CHARACTERISTICS SOLDER REFLOW PROFILE HANDLING INSTRUCTIONS DIMENSIONS AND PIN LAYOUT PCB DESIGN AND LAND PATTERN LAYOUT TAPE AND REEL SPECIFICATIONS LID MARKING SUPPORTING DOCUMENTS COMPLIANCE INFORMATION CONTACT DETAILS LEGAL INFORMATION REVISION HISTORY
