SPH9855LM4H-1

SPH9855LM4H-1 SPH9855 AEC-Q103 QUALIFIED DIGITAL BOTTOM PORT SISONIC™ MICROPHONE The SPH9855LM4H-1 is a high-performance, low power, bottom port silicon digital microphone with a single bit PDM output. Using Knowles’ proven high performance SiSonic™ MEMS technology, the SPH9855LM4H-1 consists of an acoustic sensor, a low noise input buffer, and a sigma-delta modulator. This microphone is ideally suited for automotive applications, with Knowles providing the industry's first AEC-Q103 qualified digital microphone. Its high, 66 dB(A), SNR and 132.5 dB SPL AOP provides a large, distortion-free dynamic range for high-quality voice pickup. Additionally, it features a wide frequency band for proximity detection and has a wide operating temperature range for automotive applications. Charge Pump Control SELECT Σ∆ ADC DATA CLK MEMS Transducer Buffer GND • • • • ABSOLUTE MAXIMUM RATINGS Parameter • • • • • • • • • • • Vdd Regulator PRODUCT FEATURES Absolute Maximum Rating Units AEC-Q100/103 Qualified Low Distortion / High AOP High SNR Low Current Consumption in LowPower Mode Flat Frequency Response High Drive Capability RF Shielded Bottom Port Sensitivity Matching Supports Dual Multiplexed Channels Multiple Performance Modes (Sleep, Low-Power, Normal) Ultra-Stable Performance Omnidirectional Standard SMD Reflow LGA Package TYPICAL APPLICATIONS • Automotive In-Cabin Active Noise Cancellation • Automotive eCall Communications Systems • Industrial Beam Forming Applications • Proximity Detection knowles.com | DATASHEET SPH9855LM4H-1 Rev A © 2021, Knowles Electronics, LLC, Itasca, IL, USA, All Rights Reserved. SiSonic, Knowles and the logo are trademarks of Knowles Electronics, LLC. AEC-Q103 QUALIFIED DIGITAL BOTTOM PORT SISONIC™ MICROPHONE ACOUSTIC & ELECTRICAL SPECIFICATIONS1 Parameter 2 Symbol Conditions Min Typ Max knowles.com | DATASHEET SPH9855LM4H-1 Rev A © 2021, Knowles Electronics, LLC, Itasca, IL, USA, All Rights Reserved. SiSonic, Knowles and the logo are trademarks of Knowles Electronics, LLC. Units AEC-Q103 QUALIFIED DIGITAL BOTTOM PORT SISONIC™ MICROPHONE Parameter Symbol Conditions Min Typ Max Units Parameter Symbol Conditions Min Typ Max Units 3 knowles.com | DATASHEET SPH9855LM4H-1 Rev A © 2021, Knowles Electronics, LLC, Itasca, IL, USA, All Rights Reserved. SiSonic, Knowles and the logo are trademarks of Knowles Electronics, LLC. AEC-Q103 QUALIFIED DIGITAL BOTTOM PORT SISONIC™ MICROPHONE Parameter Symbol Conditions Min Typ Max Units Parameter Symbol Conditions Min Typ Max Units 4 knowles.com | DATASHEET SPH9855LM4H-1 Rev A © 2021, Knowles Electronics, LLC, Itasca, IL, USA, All Rights Reserved. SiSonic, Knowles and the logo are trademarks of Knowles Electronics, LLC. AEC-Q103 QUALIFIED DIGITAL BOTTOM PORT SISONIC™ MICROPHONE 1/Fclock MIC1 Zrf Vdd Vih Vdd Tedge CLOCK Tedge SEL 0.1µF Vil DATA GND DATA (SELECT = Vdd) Tdd Thold Voh Vdd High Z Mic (High) Data Vdd Zrf Rterm SEL 0.1µF Tdv High Z Tdd Tdz Rterm PDM Mic Interface CLOCK DATA MIC2 Zrf Vdd Vol DATA (SELECT = Ground) Vdd Tdz Tdv CODEC OR APPLICATION PROCESSOR Zrf CLOCK Zrf CLOCK DATA GND GND Zrf Rterm Thold Voh Mic (Low) Data Vol CODEC OR APPLICATION PROCESSOR Vdd Vdd MIC Zrf Vdd Vdd Vhyst 0.1µF High NC SEL Zrf Rterm CLOCK DATA GND Zrf Rterm PDM Mic Interface CLOCK DATA GND Internal Logic Level Low Ext CLOCK Input Vh-l Vl-h Microphone Normal Mode 1.1 MHz ≤ Fclock ≤ 4.8 MHz 1.65V ≤ Vdd ≤ 3.6V SELECT Asserts DATA on Latch DATA on Powered Down Mode Vdd = 0V Sleep Mode Fclock < 250 kHz 1.65V ≤ Vdd ≤ 3.6V 5 Low-Power Mode 500 kHz ≤ Fclock ≤ 900 kHz 1.65V ≤ Vdd ≤ 3.6V knowles.com | DATASHEET SPH9855LM4H-1 Rev A © 2021, Knowles Electronics, LLC, Itasca, IL, USA, All Rights Reserved. SiSonic, Knowles and the logo are trademarks of Knowles Electronics, LLC. AEC-Q103 QUALIFIED DIGITAL BOTTOM PORT SISONIC™ MICROPHONE PERFORMANCE CURVES 6 knowles.com | DATASHEET SPH9855LM4H-1 Rev A © 2021, Knowles Electronics, LLC, Itasca, IL, USA, All Rights Reserved. SiSonic, Knowles and the logo are trademarks of Knowles Electronics, LLC. AEC-Q103 QUALIFIED DIGITAL BOTTOM PORT SISONIC™ MICROPHONE 7 knowles.com | DATASHEET SPH9855LM4H-1 Rev A © 2021, Knowles Electronics, LLC, Itasca, IL, USA, All Rights Reserved. SiSonic, Knowles and the logo are trademarks of Knowles Electronics, LLC. AEC-Q103 QUALIFIED DIGITAL BOTTOM PORT SISONIC™ MICROPHONE MECHANICAL SPECIFICATIONS Item Dimension Example Land Pattern 8 Tolerance Pin # Pin Name Type Description Example Solder Stencil Pattern knowles.com | DATASHEET SPH9855LM4H-1 Rev A © 2021, Knowles Electronics, LLC, Itasca, IL, USA, All Rights Reserved. SiSonic, Knowles and the logo are trademarks of Knowles Electronics, LLC. AEC-Q103 QUALIFIED DIGITAL BOTTOM PORT SISONIC™ MICROPHONE PACKAGING & MARKING DETAIL Model Number 9 Suffix Reel Diameter Quantity Per Reel Component Surface Resistance (ohms) knowles.com | DATASHEET SPH9855LM4H-1 Rev A © 2021, Knowles Electronics, LLC, Itasca, IL, USA, All Rights Reserved. SiSonic, Knowles and the logo are trademarks of Knowles Electronics, LLC. AEC-Q103 QUALIFIED DIGITAL BOTTOM PORT SISONIC™ MICROPHONE RECOMMENDED REFLOW PROFILE tP TP RampTL TSMAX TSMIN t tS Preheat Ramp-down 25°C Time 25°C to Peak Profile Feature 10 Time Pb-Free knowles.com | DATASHEET SPH9855LM4H-1 Rev A © 2021, Knowles Electronics, LLC, Itasca, IL, USA, All Rights Reserved. SiSonic, Knowles and the logo are trademarks of Knowles Electronics, LLC. AEC-Q103 QUALIFIED DIGITAL BOTTOM PORT SISONIC™ MICROPHONE MATERIALS STATEMENT RELIABILITY SPECIFICATIONS Test 11 Description knowles.com | DATASHEET SPH9855LM4H-1 Rev A © 2021, Knowles Electronics, LLC, Itasca, IL, USA, All Rights Reserved. SiSonic, Knowles and the logo are trademarks of Knowles Electronics, LLC. AEC-Q103 QUALIFIED DIGITAL BOTTOM PORT SISONIC™ MICROPHONE SPECIFICATION REVISIONS Revision 12 Specification Changes Knowles Corporation 1151 Maplewood Drive Itasca, Illinois 60143 Date Phone: 1 (630) 250-5100 Fax: 1 (630) 250-0575 sales@knowles.com Model/Reference Number: Datasheet SPH9855LM4H-1 Rev A © Copyright 2021 Knowles