Knowles SPH0645LM4H-1-8 Bottom Port Digital MEMS Microphone

The SPH0645LM4H-1 is a miniature, low power, bottom port microphone with an I2S digital output. The solution consists of a proven high performance SiSonic™ acoustic sensor, a serial Analog to Digital convertor, and an interface to condition the signal into an industry standard 24-bit I2S format.

The I2S interface simplifies the integration in the system and allow direct interconnect to digital processors, application processors and microcontrollerss. Saving the need of an external audio codec, the SPH0645LM4H-1 is perfectly suitable for portable applications where size and power consumption are a constraint.

Part no.: SPH0645LM4H-1

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Features
Highlights
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Key features

High SNR of 65dB(A)
Low Current of typ. 600µA
I2S Output: Direct attach to µP
Multi modes: standard >1MHz, 600uA / sleep <1kHz, 3uA
Flat Frequency Response
RF Shielded
Supports Dual Microphones
Ultra-Stable Performance
Standard SMD Reflow
Bottom-Ported Microphone
Multiple Performance Modes
Omnidirectional
3.50 x 2.65 x 0.98 mm SPH Package Size

Applications

Consumer Eletronics

knowles-sensors-sph0645lm4h-b-8-digital-microphone datasheet

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