SPM1423HM4H-B TM Digital High-SNR SiSonic Microphone The SPM1423HM4H-B is a miniature, high- Features: performance, low power, top port silicon • Low Noise digital microphone with a single bit PDM • High Sensitivity output. Using Knowles’ proven high • Low Current performance SiSonicTM MEMS technology, • RF Shielded the SPM1423HM4H-B consists of an acoustic • PDM Output sensor, a low noise input buffer, and a • Supports Dual Multiplexed Channels sigma-delta modulator. These devices are • Ultra-Stable Performance suitable for applications such as cellphones, • Standard SMD Reflow smart phones, laptop computers, sensors, • Omnidirectional digital still cameras, portable music recorders, and other portable electronic devices where excellent audio performance and RF immunity are required. The increased sensitivity and high Signal-to-Noise-Ratio (SNR) of the SPM1423HM4H-B also enhances the performance of far-field applications and many complex, multi- microphone algorithms. Revision: D 6/18/2013 Sheet 1 of 13 ©2013 Knowles Electronics

SPM1423HM4H-B 1. ABSOLUTE MAXIMUM RATINGS Parameter Absolute Maximum Rating Units V , DATA to Ground -0.3, +5.0 V DD CLOCK to Ground -0.3, +5.0 V SELECT to Ground -0.3, +5.0 V Input Current ±5 mA Short Circuit Current to/from DATA Indefinite to Ground or V sec DD Temperature Range -40 to +100 °C 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., V =1.8 V, F =2.4 MHz, SELECT pin grounded, no load, DD CLOCK unless otherwise indicated Parameter Symbol Conditions Min Typ Max Units Supply Voltage1 V 1.6 - 3.6 V DD Supply Current1,2,3 I - 500 600 µA DD Sleep Current3 I F < 1 kHz - 25 50 µA SLEEP CLOCK Sensitivity1 S 94 dB SPL @ 1 kHz -25 -22 -19 dBFS Signal to Noise Ratio SNR 94 dB SPL @ 1 kHz, A-weighted 60 61.5 - dB(A) Total Harmonic THD 94 dB SPL @ 1 kHz, S = Typ - 0.25 0.35 % Distortion Acoustic Overload dB AOP 10% THD @ 1 kHz, S = Typ 112 115 - Point SPL Power Supply dBV PSRR 200 mVpp sinewave @ 1 kHz - 48 - Rejection Ratio /FS Power Supply 100 mVpp square wave dBFS PSR - -80 - Rejection @ 217 Hz, A-weighted (A) DC Output Fullscale = ±100 - 4 - % FS Directivity Omnidirectional Polarity Increasing sound pressure Decreasing density of 1’s Data Format ½ Cycle PDM Logic Input High V 0.65xV - 3.6 V IH DD Revision: D 6/18/2013 13 Sheet 2 of ©2013 Knowles Electronics

SPM1423HM4H-B Parameter Symbol Conditions Min Typ Max Units Logic Input Low V -0.3 - 0.35xV V IL DD Logic Output High V I = 1 mA 0.65xV - V V OH OUT DD DD Logic Output Low V I = 1 mA 0 - 0.35xV V OL OUT DD SELECT (high) V -0.2 - 3.6 V DD SELECT (low) -0.3 - 0.2 V Short Circuit Current I Grounded DATA pin - 1 10 mA SC Output Load C - - 100 pF LOAD Clock Frequency F 1.0 - 3.25 MHz CLOCK Clock Duty Cycle 40 - 60 % Clock Rise/Fall Time t - - 10 ns EDGE Fall-asleep Time4,5 F < 1 kHz - - 10 ms CLOCK Wake-up Time4,6 F ≥ 1 MHz - - 10 ms CLOCK Delay Time for Valid t C = 13pf 18 - 60 ns Data DV LOAD Delay Time for High Z t 0 - 16 ns DZ 1 100% tested. 2 I varies with C according to: ΔI = 0.5*V *ΔC *F . DD LOAD DD DD LOAD CLOCK 3 Maximum specifications are measured at maximum V . Typical specifications are measured at standard test DD conditions. 4 Valid microphones states are: Powered Down Mode (mic off), Sleep Mode (low current, DATA = high-Z, fast startup), and Active Mode (normal operation). 5 Time from F < 1 kHz to I specification is met when transitioning from Active Mode to Sleep Mode. CLOCK SLEEP 6 Time from F ≥ 1 MHz to all applicable specifications are met when transitioning from Sleep Mode to Active Mode. CLOCK Revision: D 6/18/2013 13 Sheet 3 of ©2013 Knowles Electronics

SPM1423HM4H-B 3. MICROPHONE STATE DIAGRAM Active Mode Powered Sleep Down Mode Mode Revision: D 6/18/2013 13 Sheet 4 of ©2013 Knowles Electronics

SPM1423HM4H-B 4. FREQUENCY RESPONSE CURVE Typical Free Field Response Normalized to 1kHz 20 18 16 14 12 10 8 6 ) B 4 d y ( 2 t vi 0 ti -2 si n -4 e S -6 -8 -10 -12 -14 -16 -18 -20 100 1,000 10,000 Frequency (Hz) Revision: D 6/18/2013 13 Sheet 5 of ©2013 Knowles Electronics

SPM1423HM4H-B 5. INTERFACE CIRCUIT V V DD .1µf DD .1µf SELECT SELECT Mic Mic (High) (Low) DATA CLOCK Microphone SELECT Asserts DATA On Latch DATA On Mic (High) V Rising Clock Edge Falling Clock Edge DD Mic (Low) GND Falling Clock Edge Rising Clock Edge Note: All Ground pins must be connected to ground. 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. 6. TIMING DIAGRAM 1/F CLOCK V IH t t EDGE EDGE CLOCK V IL t t DV DZ V OH DATA High Z Mic (High) (SELECT = V ) DD Data V OL t t DZ DV V DATA OH High Z Mic (Low) (SELECT = GND) Data V OL Revision: D 6/18/2013 13 Sheet 6 of ©2013 Knowles Electronics

SPM1423HM4H-B 7. MECHANICAL SPECIFICATIONS Item Dimension Tolerance Units Length (L) 4.72 ±0.10 mm Width (W) 3.76 ±0.10 mm Height (H) 1.25 ±0.10 mm Acoustic Port (AP) Ø0.84 ±0.05 mm Pin # Pin Name Type Description 1 GROUND Power Ground Non-Digital Lo/Hi (L/R) Select 2 SELECT Input This pin is internally pulled low. 3 GROUND Power Ground 4 CLOCK Digital I Clock Input 5 DATA Digital O PDM Output 6 V Power Power Supply DD 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: D 6/18/2013 13 Sheet 7 of ©2013 Knowles Electronics

SPM1423HM4H-B 8. EXAMPLE LAND PATTERN 9. EXAMPLE SOLDER STENCIL PATTERN Notes: Dimensions are in millimeters unless otherwise specified. Further optimizations based on application should be performed. Revision: D 6/18/2013 13 Sheet 8 of ©2013 Knowles Electronics

SPM1423HM4H-B 10. PACKAGING & MARKETING DETAIL Model Number Suffix Reel Diameter Quantity Per Reel SPM1423HM4H-B -6 13” 4,800 Alpha Character A: Pin 1 “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: D 6/18/2013 13 Sheet 9 of ©2013 Knowles Electronics

SPM1423HM4H-B 11. RECOMMENDED REFLOW PROFILE t T P P Ramp-up T L e r atu T tL r SMAX e p m Te tS Preheat Ramp-down T SMIN 25°C Time Time 25°C to Peak Profile Feature Pb-Free Average Ramp-up rate (T to T ) 3°C/second max. SMAX P Preheat • Temperature Min (T ) 150°C SMIN • Temperature Max (T ) 200°C SMAX • Time (T to T ) (t ) 60-180 seconds SMIN SMAX S Time maintained above: • Temperature (T ) 217°C L • Time (t ) 60-150 seconds L Peak Temperature (T ) 260°C P Time within 5°C of actual Peak Temperature (t ) 20-40 seconds P Ramp-down rate (T to T ) 6°C/second max P SMAX 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. Revision: D 6/18/2013 13 Sheet 10 of ©2013 Knowles Electronics

SPM1423HM4H-B 12. 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. 13. 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: D 6/18/2013 13 Sheet 11 of ©2013 Knowles Electronics

SPM1423HM4H-B 14. RELIABILITY SPECIFICATIONS Test Description 100 cycles air-to-air thermal shock from -40oC to +125oC with 15 Thermal Shock 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) 4 cycles of 20 to 2,000 Hz sinusoidal sweep with 20 G peak Vibration acceleration lasting 12 minutes in X, Y, and Z directions. (Mil-Std-883E, Method 2007.2 A) 3 discharges of ±2 kV direct contact to I/O pins. ESD-HBM (MIL 883E, Method 3015.7) 3 discharges of ±8 kV direct contact to lid while unit is grounded. ESD-LID/GND (IEC 61000-4-2) 3 discharges of ±200 V direct contact to I/O pins. ESD-MM (ESD STM5.2) 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: D 6/18/2013 13 Sheet 12 of ©2013 Knowles Electronics

SPM1423HM4H-B 15. SPECIFICATIONS REVISIONS Revision Specification Changes Date A Initial Release (C10113410) 2/16/12 Released in new format; update specifications; new JIN designation; new B 12/05/12 RoHS statement (C10114438) Make PSRR a positive number; updated humidity conditions and ESD C 3/27/13 descriptions (C10114466); fixed typos in Reliability Section 14 (C10114690) D Corrected PSRR units; update C value for t (C10114972) 06/18/13 LOAD DV 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: D 6/18/2013 13 Sheet 13 of ©2013 Knowles Electronics

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