SPM0408LE5H-TB Amplified Zero-Height SiSonicTM Microphone With Enhanced RF Protection The SPM0408LE5H-TB is a miniature, highperformance, low power, bottom port silicon microphone. Using Knowles’ proven high performance SiSonicTM MEMS technology, the SPM0408LE5H-TB consists of an acoustic sensor, a low noise input buffer, and an output amplifier. These devices are suitable for applications such as cellphones, smart phones, laptop computers, sensors, digital still cameras, portable music recorders, and other portable electronic devices where excellent wideband audio performance and RF immunity are required. Revision: C Sheet 1 of 11 Features: Up to 20dB of Gain Enhanced RF protection Flat Frequency Response Zero-Height MicTM Operation to 5v Ultra-Stable Performance Standard SMD Reflow Omnidirectional 2/28/2013 ©2013 Knowles Electronics SPM0408LE5H-TB 1. ABSOLUTE MAXIMUM RATINGS Parameter Absolute Maximum Rating Units VDD to Ground -0.5, +7.0 V OUT to Ground -0.3, VDD + 0.3 V ±5 mA -40 to +100 °C Input Current to Any Pin Temperature Range Stresses exceeding these “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only. 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. 2. ACOUSTIC & ELECTRICAL SPECIFICATIONS TEST CONDITIONS: 23 ±2°C, 55±20% R.H., VDD(min) < VDD < VDD(max), no load, Gain = 20dB, unless otherwise indicated Parameter Symbol 1 Supply Current1,2 Supply Voltage Sensitivity 1 Signal to Noise Ratio Total Harmonic Distortion Acoustic Overload Point Output Impedance Conditions Min Typ Max Units VDD 1.5 - 5.5 V IDD - - 350 µA S 94 dB SPL @ 1 kHz -21 -18 -15 dBV/Pa SNR 94 dB SPL @ 1 kHz, A-weighted - 63 - dB(A) - - 1 % 1153 - - dB SPL - - 200 THD AOP ZOUT 94 dB SPL @ 1 kHz, S = Typ, Rload > 2 k 10% THD @ 1 kHz, Gain = 0dB, S = Typ, VDD = 5.5V, Rload > 2 k @ 1 kHz Directivity Polarity Omnidirectional Increasing sound pressure Increasing output voltage 1 100% tested. Maximum specifications are measured at maximum VDD. Typical specifications are measured at VDD = 1.8V. 3 For gain = 20dB, AOP(min) = 95 dB SPL. 2 Revision: C Sheet 2 of 11 2/28/2013 ©2013 Knowles Electronics SPM0408LE5H-TB 3. FREQUENCY RESPONSE CURVE Sensitivity (dB) Typical Free Field Response Normalized to 1 kHz (C1 = 2.2mF, R1 = 0) 20 18 16 14 12 10 8 6 4 2 0 -2 -4 -6 -8 -10 -12 -14 -16 -18 -20 100 1,000 10,000 Frequency (Hz) Revision: C Sheet 3 of 11 2/28/2013 ©2013 Knowles Electronics SPM0408LE5H-TB 4. INTERFACE CIRCUIT VDD .1mf VDD OUTPUT RS = 2.44k RF = 22k GROUND Dotted Section Represents SiSonicTM Microphone GAIN R1 (Set By User) C1 (Set By User) Gain GAIN Pin Termination Unity Gain (0dB) Connect GAIN to OUTPUT Set R1 = 0Set C1 according to equation below: Max Gain (20dB) Highpass corner frequency = Set R1 and C1 according to the equations below: Adjustable Gain (0dB to 20dB) Gain(dB) = Highpass corner frequency = Note: Capacitors near the microphone should not contain Class 2 dielectrics. Detailed information on acoustic, mechanical, and system integration can be found in the latest SiSonicTM Design Guide application note. Revision: C Sheet 4 of 11 2/28/2013 ©2013 Knowles Electronics SPM0408LE5H-TB 5. MECHANICAL SPECIFICATIONS Item Dimension Tolerance Length (L) 4.72 ±0.10 Width (W) 3.76 ±0.10 Height (H) 1.25 ±0.10 Ø0.25 ±0.08 Acoustic Port (AP) Pin # Pin Name Type Description 1 OUTPUT Signal Output Signal 2 GAIN Signal Connect resistor to set gain 3 GROUND Power Ground 4 GROUND Power Ground 5 GROUND Power Ground 6 VDD Power Power Supply 7 GROUND Power Ground 8 GROUND Power Ground Notes: Pick Area only extends to 0.25 mm of any edge or hole unless otherwise specified. Dimensions are in millimeters unless otherwise specified. Tolerance is ±0.15mm unless otherwise specified Revision: C Sheet 5 of 11 2/28/2013 ©2013 Knowles Electronics SPM0408LE5H-TB 6. EXAMPLE LAND PATTERN 7. EXAMPLE SOLDER STENCIL PATTERN Notes: Dimensions are in millimeters unless otherwise specified. Detailed information on AP size considerations can be found in the latest SiSonicTM Design Guide application note. Further optimizations based on application should be performed. Revision: C Sheet 6 of 11 2/28/2013 ©2013 Knowles Electronics SPM0408LE5H-TB 8. PACKAGING & MARKING DETAIL Model Number Suffix Reel Diameter Quantity Per Reel SPM0408LE5H-TB -6 13” 4,800 Pin 1 Alpha Character A: “S”: Knowles SiSonicTM Production “E”: Knowles Engineering Samples “P”: Knowles Prototype Samples “JIN NUMBER”: Unique Job Identification Number for product traceability 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, 70% R.H. Revision: C Sheet 7 of 11 2/28/2013 ©2013 Knowles Electronics SPM0408LE5H-TB 9. RECOMMENDED REFLOW PROFILE tP TP Ramp-up Temperature TL tL TSMAX TSMIN tS Preheat Ramp-down 25°C Time Time 25°C to Peak Profile Feature Average Ramp-up rate (TSMAX to TP) Preheat Temperature Min (TSMIN) Temperature Max (TSMAX) Time (TSMIN to TSMAX) (tS) Time maintained above: Temperature (TL) Time (tL) Peak Temperature (TP) Time within 5°C of actual Peak Temperature (tP) Ramp-down rate (TP to TSMAX) Time 25°C to Peak Temperature Pb-Free 3°C/second max. 150°C 200°C 60-180 seconds 217°C 60-150 seconds 260°C 20-40 seconds 6°C/second max 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. Revision: C Sheet 8 of 11 2/28/2013 ©2013 Knowles Electronics SPM0408LE5H-TB 10. 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. 11. 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. 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.” Revision: C Sheet 9 of 11 2/28/2013 ©2013 Knowles Electronics SPM0408LE5H-TB 12. RELIABILITY SPECIFICATIONS Test Description Thermal Shock 100 cycles air-to-air thermal shock from -40oC to +125oC with 15 minute soaks. (IEC 68-2-4) High Temperature Storage 1,000 hours at +105oC environment (IEC 68-2-2 Test Ba) Low Temperature Storage 1,000 hours at -40oC environment (IEC 68-2-2 Test Aa) High Temperature Bias 1,000 hours at +105oC under bias (IEC 68-2-2 Test Ba) Low Temperature Bias 1,000 hours at -40oC under bias (IEC 68-2-2 Test Aa) Temperature / Humidity Bias 1,000 hours at +85oC/85% R.H. under bias. (JESD22-A101A-B) Vibration 4 cycles of 20 to 2,000 Hz sinusoidal sweep with 20 G peak acceleration lasting 12 minutes in X, Y, and Z directions. (Mil-Std-883E, method 2007.2 A) ESD-HBM 3 discharges of ±2 kV direct contact to I/O pins. (ESD STM5.2) ESD-LID/GND ESD-MM 3 discharges of ±8 kV direct contact to lid while unit is grounded. (IEC 61000-4-2) 3 discharges of ±2 kV direct contact to I/O pins. (MIL 883E, Method 3015.7) Reflow 5 reflow cycles with peak temperature of +260oC Mechanical Shock 3 pulses of 10,000 G in the X, Y, and Z direction (IEC 68-2-27, Test Ea) Note: After reliability tests are performed, the sensitivity of the microphones shall not deviate more than 3 dB from its initial value. Revision: C Sheet 10 of 11 2/28/2013 ©2013 Knowles Electronics SPM0408LE5H-TB 13. SPECIFICATION REVISIONS Revision Specification Changes Date A Updated old format 8/14/09 B Update Section 2, 3, 7, 8, 11; misc cleanup 10/21/10 C New RoHS statement (C10114438); updated humidity conditions and ESD descriptions (C10114466); released in new format (C10114628) 2/28/12 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. Revision: C Sheet 11 of 11 2/28/2013 ©2013 Knowles Electronics