Datasheet VM3000 (Vesper) - 3
| Manufacturer | Vesper |
| Description | Low Noise PDM Digital Bottom Port Piezoelectric MEMS Microphone |
| Pages / Page | 12 / 3 — VM3000. PRELIMINARY DATASHEET. SPECIFICATIONS. General Acoustic and … |
| File Format / Size | PDF / 765 Kb |
| Document Language | English |
VM3000. PRELIMINARY DATASHEET. SPECIFICATIONS. General Acoustic and Electrical specifications. Parameter. Symbol Conditions
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VM3000
Low Noise PDM Digital Bottom Port Piezoelectric MEMS Microphone
PRELIMINARY DATASHEET SPECIFICATIONS
Table below shows
General Acoustic and Electrical specifications
at 25°C, VDD = 1.8 V, unless otherwise noted.
Parameter Symbol Conditions Min. Typ. Max. Units
Supply Voltage VDD 1.6 1.8 3.6 V Sensitivity 1 kHz, 94 dB SPL -27 -26 -25 dBFS Output DC Offset 5 % FS Rol Off Frequency -3dB at 1KHz 85 Hz Directivity Omni Polarity Increase in sound pressure Increase in Density of 1’s Supply Current- Sleep Mode VDD On, CLK Off (Must be logic LOW) 2.5 μA Supply Current- Standby Mode VDD On, CLK < 250 kHz 115 μA Startup Time Within ±0.5dB of actual sensitivity 200 μS Sensitivity Recovery Time After 135 dB SPL for 50msec fol owed by 94 10 mS High SPL Event1 dB SPL Table below shows specifications for
Normal Mode
(1.1MHZ < CLK < 4MHZ) at 25°C, VDD = 1.8 V, CLK = 2.4MHz, unless otherwise noted.
Parameter Symbol Conditions Min. Typ. Max. Units
94 dB SPL at 1 kHz signal, 20Hz- Signal-to-Noise Ratio SNR 62 dB(A) 20kHz, A-weighted Noise Signal-to-Noise Ratio, Voice 94 dB SPL at 1 kHz signal, 20Hz-8kHz, SNR 64 dB(A) Band 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 Power Supply Rejection Ratio PSRR VDD = 1.8, 1kHz, 100mVPP Sine Wave -47 dBFS/dBV VDD = 1.8, 217Hz, 100mVPP square Power Supply Rejection PSR -85 dB(A) wave, 20 Hz – 20kHz, A-weighted CLK = 1.536MHz 600 μA Supply Current CLK = 2.4MHz 700 μA CLK = 3.072MHz 775 μA 1 Microphone is subjected to 135 dB SPL input at 1kHz for 50msec and then 94 dB SPL at 1kHz for measuring sensitivity recovery time. Recovery time is defined as the time taken for sensitivity to be within +1dB or -0.5dB of actual sensitivity. Document Name: VM3000_Datasheet Page 3 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. info@vespermems.com 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
VM3000
Low Noise PDM Digital Bottom Port Piezoelectric MEMS Microphone
PRELIMINARY DATASHEET SPECIFICATIONS
Table below shows
General Acoustic and Electrical specifications
at 25°C, VDD = 1.8 V, unless otherwise noted.
Parameter Symbol Conditions Min. Typ. Max. Units
Supply Voltage VDD 1.6 1.8 3.6 V Sensitivity 1 kHz, 94 dB SPL -27 -26 -25 dBFS Output DC Offset 5 % FS Rol Off Frequency -3dB at 1KHz 85 Hz Directivity Omni Polarity Increase in sound pressure Increase in Density of 1’s Supply Current- Sleep Mode VDD On, CLK Off (Must be logic LOW) 2.5 μA Supply Current- Standby Mode VDD On, CLK < 250 kHz 115 μA Startup Time Within ±0.5dB of actual sensitivity 200 μS Sensitivity Recovery Time After 135 dB SPL for 50msec fol owed by 94 10 mS High SPL Event1 dB SPL Table below shows specifications for
Normal Mode
(1.1MHZ < CLK < 4MHZ) at 25°C, VDD = 1.8 V, CLK = 2.4MHz, unless otherwise noted.
Parameter Symbol Conditions Min. Typ. Max. Units
94 dB SPL at 1 kHz signal, 20Hz- Signal-to-Noise Ratio SNR 62 dB(A) 20kHz, A-weighted Noise Signal-to-Noise Ratio, Voice 94 dB SPL at 1 kHz signal, 20Hz-8kHz, SNR 64 dB(A) Band 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 Power Supply Rejection Ratio PSRR VDD = 1.8, 1kHz, 100mVPP Sine Wave -47 dBFS/dBV VDD = 1.8, 217Hz, 100mVPP square Power Supply Rejection PSR -85 dB(A) wave, 20 Hz – 20kHz, A-weighted CLK = 1.536MHz 600 μA Supply Current CLK = 2.4MHz 700 μA CLK = 3.072MHz 775 μA 1 Microphone is subjected to 135 dB SPL input at 1kHz for 50msec and then 94 dB SPL at 1kHz for measuring sensitivity recovery time. Recovery time is defined as the time taken for sensitivity to be within +1dB or -0.5dB of actual sensitivity. Document Name: VM3000_Datasheet Page 3 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. info@vespermems.com 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
