SPH18C3LM4H-1 LAZARUS HIGH SNR,HIGH AOP ANALOG BOTTOM PORT SISONIC™ MICROPHONE Datasheet

PublishTime：2022-04-25

The SPH18C3LM4H-1 is a high Signal-to-noise Ratio ( SNR ),high Acoustic Overload Point ( AOP ),bottom port silicon microphone.Using Knowles'proven high performance SiSonic™ MEMS technology, the SPH18C3LM4H-1 consists of an acoustic sensor,a low noise input buffer,and a differential output amplifier supporting optional single ended mode.This microphone's high SNR enables enhanced consumer experience with Transparency Mode & Active Noise Cancellation on Ear Products.Its high SNR & AOP provide high dynamic range for Mobile & variety of lot products in a small form factor.The microphone's low phase distortion lends to superior algorithm performance.Its differential mode configuration improves noise immunity to power supply variations,allowing extension of microphone PCB traces.
●PRODUCT FEATURES
■Differential/Single-Ended Output
■Low Distortion/High AOP
■High SNR
■Flat frequency Response
■Low Current
■Sensitivity Matching
■Bottom Port
■Ultra Stable Performance
■Omnidirectional
■Standard SMD Reflow
■LGA Package

Brand of Product：	Knowles
Part#：	SPH18C3LM4H-1 More Part#
Product Category：	HIGH SNR,HIGH AOP ANALOG BOTTOM PORT SISONIC™ MICROPHONE More
Application：	[ Transparency Mode OTL & TWS ][ ANC Mode OTC & TWS ][ Far field Voice Speakerphone & Mobile ] More
Data Type：	Datasheet More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：
Language：	English Chinese Chinese and English Japanese
Date of Creation：	1/12/22
Version Number：	Revision B
Data Encoding：
Data Size：	3.4 MB

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