MP34DB01 Datasheet, PDF (1/15 Pages) STMicroelectronics – MEMS audio sensor omnidirectional digital microphone

MP34DB01
MEMS audio sensor
omnidirectional digital microphone
Features
■ Single supply voltage
■ Low power consumption
■ 120 dBSPL acoustic overload point
■ 62.6 dB signal-to-noise ratio
■ Omnidirectional sensitivity
■ –26 dBFS sensitivity
■ PDM single-bit output with option for stereo
configuration
■ RHLGA package
– Bottom-port design
– SMD-compliant
– EMI-shielded
– ECOPACK^®, RoHS and “Green” compliant
Applications
■ Mobile terminals
■ Laptop and notebook computers
■ Portable media players
■ VoIP
■ Speech recognition
■ A/V eLearning devices
■ Gaming and virtual reality input devices
■ Digital still and video cameras
■ Antitheft systems
RHLGA 3x4x1 4LD
Description
The MP34DB01 is an ultra-compact, low-power,
omnidirectional, digital MEMS microphone built
with a capacitive sensing element and an IC
interface with stereo operation capability.
The sensing element, capable of detecting
acoustic waves, is manufactured using a
specialized silicon micromachining process
dedicated to produce audio sensors.
The IC interface is manufactured using a CMOS
process that allows designing a dedicated circuit
able to provide a digital signal externally in PDM
format.
The MP34DB01 has an acoustic overload point of
120 dBSPL with a best on the market 62.6 dB
signal-to-noise ratio and -26 dBFS sensitivity.
The MP34DB01 is available in a bottom-port,
SMD-compliant, EMI-shielded package and is
guaranteed to operate over an extended
temperature range from -30 °C to +85 °C.
Table 1. Device summary
Part number
Temperature range [°C]
MP34DB01
-30 to +85
MP34DB01TR
-30 to +85
Package
RHLGA (3x4x1) mm 4LD
RHLGA (3x4x1) mm 4LD
Packing
Tray
Tape and reel
January 2012
Doc ID 17924 Rev 5
1/15
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