MM20-33366-000 KNOWLES | Alldatasheet
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Revision: C 09/05/19 Sheet 1 of 8 © Copyright 2017 Knowles MEMS Microphone The MM20 is a miniature, high- performance, low power, bottom port silicon microphone with best SNR and extended dynamic range. Using Knowles’ proven high performance MEMS technology, the MM20 consists of an acoustic sensor, a low noise input buffer, and an output amplifier. These devices are suitable for applications where excellent wideband audio performance and RF immunity are required. Product Features Small Package / Bottom Port Highest SNR >70 dB A Lower Resonance Extended Dynamic Range Maximum RF Protection Ultra-Stable Performance Standard SMD Reflow Omnidirectional MM20-33366-000
Revision: C 09/05/19 Sheet 2 of 8 © Copyright 2017 Knowles Acoustic & Electrical Specifications Table 1: General Microphone Specifications Test Conditi ons: 21 ± 2°C, 50 ± 5% R.H., VDD =0.9V and no load unless otherwise indicate d Parameter Minimum Nominal Maximum Units Supply Voltage (VDD) 0.9 0.9 1.3 V operating range Sensitivity
100 Hz -3 -1 +1 dB dB re sensitivity @ 1kHz
1 kHz -58 -55 -52 dB dB re 1V / 0.1 Pa 10 kHz -3 0 +3 dB dB re sensitivity @ 1kHz Peak - 8 - dB dB re sensitivity @ 1kHz Peak Frequency - 19.5 - kHz - Low Frequency Roll-Off - 55 - Hz -3dB re sensitivity @ 1kHz Supply Current (Drain) 22 38 48 µA - Output Load Voltage (VL) 0.45 0.55 0.65 V after settled (open load) Input-Referred Noise, A-Weighted - 23.5 27 dB SPL 20 Hz to 20kHz bandwidth Signal to Noise Ratio, A-Weighted - 70.5 - dB A 20 Hz to 20kHz bandwidth Input-Referred Noise, 1/3rd Octave - 15 - dB SPL @100 Hz - 10 - dB SPL @1 kHz - 14 - dB SPL @10 kHz Output Impedance 3850 5100 6350 @ 1 kHz Start Up Time - <0.5 - seconds sensitivity stable within +/- 0.2dB Acoustic Overload Point - 121 - dB SPL 10% THD @ 1 kHz Power Supply Rejection Ratio - -32 -24 dB @ 1kHz Input-Referred EMI 0.70-0.96 GHz
90 V/m - - 25 dB SPL
IEC 60118-13 Ed. 4.0 1.4-2.0 GHz
50 V/m - - 15 dB SPL
2.0-2.7 GHz 35V/m - - 15 dB SPL Input Referred Vibration - 54 - dB SPL blocked port, 1g acceleration, sensitivity @ 1kHz - 65 - dB SPL open port, 1g acceleration, sensitivity @ 1kHz Humidity Coefficient - 0.0 - dB per %RH Storage Temperature -40 - +100 ºC - Operating Temperature -17 - +63 ºC - Directivity Omnidirectional - Polarity Increasing output voltage Increasing pressure at inlet ESD Tolerance MIL – STD – 750 Class 2 Rating EOS / ESD – S5.1 – 1993 Class 2 Rating Sensitivity, Output Impedance, A-Weighted Noise, and Supply Current are 100% tested. Functional operation at these or any other conditions beyond those indicated under “Acoustic & Electrical Specifications” is not implied. Exposure beyond those indicated under “Acoustic & Electrical Specifications” for extended periods may affect device reliability.
Revision: C 09/05/19 Sheet 4 of 8 © Copyright 2017 Knowles Mechanical Specifications 12JPn Port Notes: Metal can may be flush with, but not extend past, edge of microphone base on four sides. “*” Denotes dimension applies to the center of ground ring. Pick Area only extends to 0.25 mm of any edge or hole unless otherwise specified. Dimensions in millimeters [inches]
Revision: C 09/05/19 Sheet 5 of 8 © Copyright 2017 Knowles Example Land Pattern Example Solder Stencil Pattern Notes: Dimensions are in millimeters unless otherwise specified. Further optimizations based on application should be performed. Notes: Dimensions are in millimeters unless otherwise specified. Vacuum pickup only in the pick area indicated in Mechanical Specifications. Tape & reel per EIA-481. Labels applied directly to reel and external package. Shelf life: Twelve (12) months when devices are to be stored in factory supplied, unopened ESD moisture sensitive bag under maximum environmental conditions of 30°C. Symbol Definition # Characters N Part Number (last three digits) 3 (366) P Production Week 2 Y Production Year 1 L Last 5 characters of Oracle Lot Number 5 S Sub-lot Number 2
Revision: C 09/05/19 Sheet 6 of 8 © Copyright 2017 Knowles Recommended Reflow Profile Profile Feature Pb-Free Ramp-up rate (25°C to TSMIN) 3°C/second (see note) Average Ramp-up rate (TSMAX to TP) 3°C/second max. Preheat Temperature Min (TSMIN) Temperature Max (TSMAX) Time (TSMIN to TSMAX) (tS) 150°C 200°C 60-180 seconds Time maintained above: Temperature (TL) Time (tL) 217°C 60-150 seconds Peak Temperature (TP) 260°C Time within 5°C of actual Peak Temperature (tP) 20-40 seconds Ramp-down rate (TP to TSMAX) 6°C/second max Time 25°C to Peak Temperature 8 minutes max Notes: Based on IPC/JDEC J-STD-020 Revision C. All temperatures refer to topside of the package, measured on the package body surface Ramp-up rate (25°C to TSMIN) can be optimized based on application. Additional Notes (A) MSL (moisture sensitivity level) Class 1. (B) Maximum of 3 reflow cycles is recommended. (C) In order to minimize device damage: Do not board wash or clean after the reflow process. Do not brush board with or without solvents after the reflow process. Do not directly expose to ultrasonic processing, welding, or cleaning. Do not insert any object in port hole of device at any time. Do not apply over 30 psi of air pressure into the port hole. Do not pull a vacuum over port hole of the microphone. Do not apply a vacuum when repacking into sealed bags at a rate faster than 0.5 atm/sec. Time 25°C to Peak Ramp-down Ramp-up TSMIN TSMAX TL TP tL tP tS Preheat Time 25°C
Revision: C 09/05/19 Sheet 7 of 8 © Copyright 2017 Knowles Materials Statement Meets the requirements of the European RoHS directive 2011/65/EC as amended. Meets the requirements of the industry standard IEC 61249-2-21:2003 for halogenated substances and Knowles Green Materials Standards Policy section on Halogen-Free. Product is Beryllium Free according to limits specified on the Knowles Hazardous Material L ist (HSL for Products). Ozone depleting substances are not used in the product or the processes used to make the product, including compounds listed in Annex A, B, and C of the “Montreal Protocol on Substances That Deplete the Ozone Layer.” This product meets RoHS and REACH requirements as of date of publication. To receive latest certificate of compliance, send email to environmental@knowles.com Reliability Specifications Test Description Reflow 5 reflow cycles with peak temperature of +260°C High Temperature Storage +105°C environment for 1,000 hours (IEC 68-2-2 Test Ba) Low Temperature Storage -40°C environment for 1,000 hours (IEC 68-2-1 Test Aa) High Temperature Bias +105°C environment while under bias for 1,000 hours (IEC 68-2-2 Test Ba) Low Temperature Bias -40°C environment while under bias for 1,000 hours (IEC 68-2-1 Test Aa) Temperature/Humidity Bias +85°C/85% R.H. environment while under bias for 1,000 hours (JESD22-A101A-B) Thermal Shock 100 cycles of air-air thermal shock from -40°C to +125°C with 15 minute soaks (IEC 68-2-4) Vibration 16 minutes in each X, Y, Z axis from 20 to 2,000 Hz with peak acceleration of 20 G (MIL 883E, Method 2007.2,A) Mechanical Shock 3 pulses of 10,000 G in each of the X, Y, and Z directions (IEC 68-2-27 Test Ea) ESD-HBM 3 discharges of ±2kV direct contact to I/O pins (MIL 883E, Method 3015.7) ESD-LID/GND 3 discharges of ±8kV direct contact to lid while unit is grounded (IEC 61000-4-2) ESD-MM 3 discharges of ±200V direct contact to IO pins (ESD STM5.2) Notes: After reliability tests are performed, the sensitivity of the microphones shall not deviate more than 3dB from their initial value. After 3 reflow cycles, the sensitivity of the microphones shall not deviate more than 1 dB from its initial value.
Information contained herein is subject to change without notice. It may be used by a party at their own discretion and risk. We do not guarantee any results or assume any liability in connection with its use. This publication is not to be taken as a license to operate under any existing patents. knowles.com Datasheet SPK2638LM4H-Ex Rev B © Copyright 2015 Knowles © 2017, Knowles Electronics, LLC, Itasca, IL USA, – All Rights Reserved. Knowles and the logo are trademarks of Knowles Electronics, LLC. Knowles Corporation
1151 Maplewood Drive
Itasca, Illinois 60143 Phone: (630) 250-5100 Fax: (630) 250-0575 sales@knowles.com Specification Revisions Revision Specification Changes Date A Initial Release 4/20/2018 B Update sensitivity specification at 10kHz per typical production microphone 10-17-19 C Update Temperature Specification 09-05-19 Date of Publication: 20 April 2018