SPH0641LU4H-1 Datasheet, PDF (1/15 Pages) Knowles Electronics – Digital Zero-Height SiSonicTM Microphone With Multi-Mode And Ultrasonic Support

SPH0641LU4H-1
Digital Zero-Height SiSonic^TM Microphone
With Multi-Mode And Ultrasonic Support
The SPH0641LU4H-1 is a miniature, high-
performance, low power, bottom port
silicon digital microphone with a single bit
PDM output. Using Knowles’ proven high
performance SiSonic^TM MEMS technology,
the SPH0641LU4H-1 consists of an acoustic
sensor, a low noise input buffer, and a
sigma-delta modulator. This microphone is
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.
In addition, the SPH0641LU4H-1 offers
multiple performance modes and supports
ultrasonic applications.
Features:
 High SNR of 64dB
 Low Current Consumption of 235uA in
Low-Power Mode
 Multiple performance modes (Sleep,
Low-Power, Standard Performance and
Ultrasonic Modes)
 Flat Frequency Response
 RF Shielded
 Zero-Height Mic^TM
 Supports Dual Multiplexed Channels
 Standard SMD Reflow
 Omnidirectional
 Ultrasonic Support
 Sensitivity Matching
 Small Size
Revision: A
Sheet 1 of 15
5/16/2014
©2014 Knowles Electronics