VM1010

VM1010 Low Noise Bottom P ort Analog P iezoelectric M EM S M icrophone w ith W ake on Sound DATASHEET GENERAL INFORMATION The VM1010 is the world’s first ZeroPower ListeningTM piezoelectric MEMS microphone. It provides an ultra-low power always listening solution, bringing voice activation to battery powered consumer devices. The VM1010 is a low-noise single-ended analog MEMS microphone with a Wake on Sound mode that allows detection of voice activity while consuming only 10 μA of supply current (or 18 μW of power). In this Wake on Sound mode, the microphone detects sounds in the voice band above a configurable acoustic threshold level. When the microphone detects a sound above the threshold, it instantly alerts the system of the acoustic event. The system can then switch the VM1010 to Normal mode with full audio output within 200 μSec. This is fast enough for the VM1010 to capture the sound that exceeds the threshold and send it to the system for processing. This creates the system architecture for ZeroPower Listening. The VM1010’s Wake on Sound mode brings voice activation to battery-powered consumer devices - while drawing nearly zero power, making it ideal for voiceinterface devices such as smart speakers, TV remotes, smart earbuds, and smart home products. APPLICATIONS • • • • • • Smart Voice Remotes IP Security Cameras TV Remotes Headsets / Hearables / Wearables Smart Home Devices Battery Operated Applications with wake word / event detection BLOCK DIAGRAM The VM1010 has a small 3.76 mm X 2.95 mm X 1.3 mm package and is solder reflow compatible with no sensitivity degradation. It operates in environmentally harsh surroundings because it is dust- and moistureresistant. FEATURES • • • • • ZeroPower ListeningTM Full audio output upon waking Capable of voice detection with just 18 μW operation Extends standby battery life up to 10x and typical operating battery life up to 7x Dust and water resistant to IP57 ORDERING INFORMATION Product Package Description Quantity VM1010AA 13” Tape and Reel 5,000 Document Name: VM1010_Datasheet Revision: R0.0.0 Page 1 of 12 info@vespermems.com Functional Block Diagram Terms and Conditions Apply VM1010 Low Noise Bottom P ort Analog P iezoelectric M EM S M icrophone w ith W ake on Sound DATASHEET TABLE OF CONTENTS MICRPHONE MODES ...........................................................................................................3 ACOUSTIC SPECIFICATIONS ...............................................................................................3 ELECTRICAL SPECIFICATIONS .............................................................................................4 DIGITAL INTERFACE SPECIFICATIONS ................................................................................4 ABSOLUTE MAXIMUM RATINGS ...........................................................................................4 ENVIRONMENTAL ROBUSTNESS ..........................................................................................5 MICROPHONE OPERATION ..................................................................................................5 SYSTEM ARCHITECTURE .....................................................................................................6 TYPICAL PERFORMANCE CHARACTERISTICS ........................................................................7 SOLDER REFLOW PROFILE ..................................................................................................8 HANDLING INSTRUCTIONS .................................................................................................8 DIMENSIONS AND PIN LAYOUT ...........................................................................................8 PCB DESIGN AND LAND PATTERN LAYOUT ..........................................................................9 TAPE AND REEL SPECIFICATIONS ..................................................................................... 10 LID MARKING ................................................................................................................... 11 COMPLIANCE INFORMATION ............................................................................................. 11 CONTACT DETAILS ........................................................................................................... 11 LEGAL INFORMATION ....................................................................................................... 11 REVISION HISTORY .......................................................................................................... 12 Document Name: VM1010_Datasheet Revision: R0.0.0 Page 2 of 12 info@vespermems.com Terms and Conditions Apply VM1010 Low Noise Bottom P ort Analog P iezoelectric M EM S M icrophone w ith W ake on Sound DATASHEET MICRPHONE MODES Mode Logic Level Mic Mode Idd (μA) Vout Dout pin High Wake on Sound 10 GND Low, then latches high after first wake-up event Low or floating Normal 85 Analog Audio Output Tied to GND through low impedance ACOUSTIC SPECIFICATIONS All specifications are at 25°C, VDD = 1.8 V unless otherwise noted Parameter Symbol Conditions Min. Typ. Max. Units -41 -38 -35 dBV Normal Mode Specifications Sensitivity 1 kHz, 94 dB SPL Signal-to-Noise Ratio SNR Signal-to-Noise Ratio Voice Band SNR Total Harmonic Distortion THD Acoustic Overload Point AOP 94 dB SPL at 1 kHz signal, 20Hz to 60.5 dB(A) 62.5 dB(A) 94 dB SPL 0.1 % 10.0% THD 126 dB SPL 10 mS 100 Hz 20kHz, A-weighted Noise 94 dB SPL at 1 kHz signal, 20Hz to 8kHz, A-weighted Noise Sensitivity Recovery Time After 135 dB SPL for 50msec followed by 94 High SPL Event 1 dB SPL Roll Off Frequency -3dB at 1KHz Directivity Omni Polarity Increase in sound pressure Increase in output voltage Wake on Sound Specifications Max Acoustic Threshold (default) PaTH Rg= Open (default), 1kHz signal 89 dB SPL Mid Threshold PaTH Rg= 90kOhm, 1kHz signal 77 dB SPL Min Acoustic Threshold PaTH Rg= 18kOhm, 1kHz signal 65 dB SPL Note: Rg is the resistance configured by user between GA1 and GA2 pins. A 1% tolerance resistor is recommended. Engineering material date code 1810 and lower have a different range and resistor values and are now obsolete. 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: VM1010_Datasheet Revision: R0.0.0 Page 3 of 12 info@vespermems.com Terms and Conditions Apply VM1010 Low Noise Bottom P ort Analog P iezoelectric M EM S M icrophone w ith W ake on Sound DATASHEET ELECTRICAL SPECIFICATIONS All specifications are at 25°C, VDD = 1.8 V unless otherwise noted Parameter Symbol Conditions Min. Typ. Max. Units 1.6 1.8 3.6 V 85 100 μA Normal Mode Specifications Supply Voltage VDD Supply Current IDD Power Supply Rejection Ratio VDD ≤ 1.8 V, Mode = Low VDD = 1.8, 1kHz, 200mVPP Sine PSRR wave 53 dB -85 dB(A) 1 kΩ 0.8 V VDD = 1.8, 217Hz, 100mVPP Power Supply Rejection PSR square wave, 20 Hz – 20kHz, Aweighted Output Impedance ZOUT Output DC Offset Wake on Sound Specifications Supply Voltage VDD Supply Current IDD Symbol 1.8 3.6 V 7 10 14 μA Mode = High DIGITAL INTERFACE SPECIFICATIONS Parameter 1.6 Conditions Min. Typ. Max. Units Logic Input High 0.65*VDD 3.6 V Logic Input Low -0.3 0.35*VDD V Logic Output High ILoad = 0.5mA Logic Output Low ILoad = 0.5mA 0.7*VDD VDD 0 Driving Capability ABSOLUTE MAXIMUM RATINGS V 0.3*VDD V 100 pF 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 Document Name: VM1010_Datasheet Revision: R0.0.0 Page 4 of 12 info@vespermems.com Terms and Conditions Apply VM1010 Low Noise Bottom P ort Analog P iezoelectric M EM S M icrophone w ith W ake on Sound DATASHEET ENVIRONMENTAL ROBUSTNESS IP adherence is evaluated by 1kHz Sensitivity spec post stress Ingress Protection Type Description Dust Resistance IP5X; Water Immersion IPX7; 2 hrs drying time, dry environment MICROPHONE OPERATION The VM1010 is a user-controlled multi-mode microphone. Through the single-bit digital input pin MODE, the user provides a signal that will put the microphone in the Wake on Sound or Normal mode of operation. When in the Wake on Sound mode, should a sound be detected, the microphone will output a digital high through the DOUT pin. The user can then switch the microphone to Normal mode by providing a digital low to the MODE pin. The user can at some later point provide a digital high to the MODE pin to return the microphone to Wake on Sound mode. Figure 7 shows the states of various pins that are either user-provided (MODE, VDD) or VM1010-provided (DOUT, VOUT) at three points of operation. We recommend powering up the microphone in Normal mode (mode pin low), and then entering Wake on Sound mode as needed. Timing diagrams showing turn-on time (left), transition time into Wake on Sound mode (center) & Normal mode (right) Document Name: VM1010_Datasheet Revision: R0.0.0 Page 5 of 12 info@vespermems.com Terms and Conditions Apply VM1010 Low Noise Bottom P ort Analog P iezoelectric M EM S M icrophone w ith W ake on Sound DATASHEET SYSTEM ARCHITECTURE Block Diagram of example system build around VM1010 Microphone Figure above shows a full-featured system built around the VM1010. The VM1010 wakes up the system when triggered by sound. The DSP or voice processor can be kept in a low-power state when there is no sound to process. Document Name: VM1010_Datasheet Revision: R0.0.0 Page 6 of 12 info@vespermems.com Terms and Conditions Apply VM1010 Low Noise Bottom P ort Analog P iezoelectric M EM S M icrophone w ith W ake on Sound DATASHEET TYPICAL PERFORMANCE CHARACTERISTICS THD+N vs Amplitude at 1kHz Normalized Frequency Response Linearity at 1kHz THD vs Frequency, 94dB SPL s WOS Threshold vs Gain Resistor Document Name: VM1010_Datasheet Revision: R0.0.0 WOS vs Vdd over Temperature Page 7 of 12 info@vespermems.com Terms and Conditions Apply VM1010 Low Noise Bottom P ort Analog P iezoelectric M EM S M icrophone w ith W ake on Sound DATASHEET SOLDER REFLOW PROFILE Solder Reflow Profile HANDLING INSTRUCTIONS Vesper’s piezoelectric MEMS microphones are very resistant 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 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 port hole. • Do not insert any large particles or objects in the 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 acoustic port to harsh chemicals. • Do not handle without a standard ESD control procedure such as grounding of equipment, wrist straps worn by operators etc. DIMENSIONS AND PIN LAYOUT Document Name: VM1010_Datasheet Revision: R0.0.0 Page 8 of 12 info@vespermems.com Terms and Conditions Apply VM1010 Low Noise Bottom P ort Analog P iezoelectric M EM S M icrophone w ith W ake on Sound DATASHEET Pin Number Pin Name Description 1 VOUT Analog Output Voltage 2 GA2 Wake-on-Sound Acoustic Threshold Adjust pin 2 3 GA1 Wake-on-Sound Acoustic Threshold Adjust pin 1 4 GND Ground 5 MODE Mode control (High=Wake on Sound, Low=Normal) 6 VDD Power Supply (1.6V to 3.6V) 7 DOUT Digital output for Wake on Sound trigger 8 GND Ground PCB DESIGN AND LAND PATTERN LAYOUT PCB and Solder Stencil Pattern. All dimensions are in mm Document Name: VM1010_Datasheet Revision: R0.0.0 Page 9 of 12 info@vespermems.com Terms and Conditions Apply VM1010 Low Noise Bottom P ort Analog P iezoelectric M EM S M icrophone w ith W ake on Sound DATASHEET TAPE AND REEL SPECIFICATIONS Tape and Reel specification - All dimensions are in millimeters (inches) Part Orientation in Reel (Note: dimensions not to scale) Document Name: VM1010_Datasheet Revision: R0.0.0 Page 10 of 12 info@vespermems.com Terms and Conditions Apply VM1010 Low Noise Bottom P ort Analog P iezoelectric M EM S M icrophone w ith W ake on Sound DATASHEET LID MARKING Lid Marking Descriptions COMPLIANCE INFORMATION Electrostatic discharge (ESD) sensitive device: Although this product features industry standard protection circuitry, damage may occur if subjected to excessive ESD. Proper ESD precautions should be taken to avoid damage to the device. CONTACT DETAILS Vesper Technologies 77 Summer St Floor 8 Boston, MA 02110 Email: info@vespermems.com LEGAL INFORMATION For any questions or comments on the datasheet email: erratum@vespermems.com Information furnished by Vesper is believed to be accurate and reliable. However, no responsibility is assumed by Vesper for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Vesper. Trademarks and registered trademarks are the property of their respective owners. Document Name: VM1010_Datasheet Revision: R0.0.0 Page 11 of 12 info@vespermems.com Terms and Conditions Apply VM1010 Low Noise Bottom P ort Analog P iezoelectric M EM S M icrophone w ith W ake on Sound DATASHEET REVISION HISTORY Revision Date Description 0.0.0 02/22/2019 Initial revision for new document control system. VM1010_Datasheet_RevA renamed and reformatted to R0.0.0. Product Name changed to VM1010AA. Document Name: VM1010_Datasheet Revision: R0.0.0 Page 12 of 12 info@vespermems.com Terms and Conditions Apply