digital microphone. MP45DT02 Datasheet

MP45DT02 microphone. Datasheet pdf. Equivalent

Part MP45DT02
Description MEMS audio sensor omnidirectional digital microphone
Feature MP45DT02 MEMS audio sensor omnidirectional digital microphone Datasheet - production data  Speech .
Manufacture ST Microelectronics
Datasheet
Download MP45DT02 Datasheet



MP45DT02
MP45DT02
MEMS audio sensor omnidirectional digital microphone
Datasheet - production data
Speech recognition
A/V eLearning devices
Gaming and virtual reality input devices
Digital still and video cameras
Antitheft systems
Description
HLGA (4.72 x 3.76 mm) 6LD
The MP45DT02 is a compact, low-power, top-
port, omnidirectional, digital MEMS microphone.
The MP45DT02 is built with a sensing element
and an IC interface with stereo capability.
Features
Single supply voltage
Low power consumption
120 dBSPL acoustic overload point
Omnidirectional sensitivity
PDM single-bit output with option for stereo
configuration
HLGA package (SMD-compliant) plastic or
metal
ECOPACK®, RoHS, and “Green” compliant
Applications
Mobile terminals
Laptop and notebook computers
Portable media players
The sensing element, capable of detecting
acoustic waves, is manufactured using a
specialized silicon micromachining process 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 MP45DT02 has an acoustic overload point of
120 dBSPL with a best on the market 61 dB
signal-to-noise ratio and -26 dB sensitivity.
The MP45DT02 is available in an SMD-compliant
package metal (M) or plastic and is guaranteed to
operate over an extended temperature range
from -30 °C to +85 °C.
The MP45DT02’s digital output and package size
(1.25 mm thick) make this device the best solution
for laptop and portable computing applications.
VoIP
Table 1. Device summary
Order code
Temperature range [°C]
Package
Packing
MP45DT02
MP45DT02TR
MP45DT02TR-M
-30 to +85
-30 to +85
-30 to +85
HLGA 4.72 x 3.76 6LD
HLGA 4.72 x 3.76 6LD
HLGA 4.72 x 3.76 6LD
Tray
Tape and reel
Tape and reel
June 2014
This is information on a product in full production.
DocID018658 Rev 7
1/15
www.st.com



MP45DT02
Contents
Contents
MP45DT02
1 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Acoustic and electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Acoustic and electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 Timing characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 Frequency response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Sensing element . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5 Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.1 L/R channel selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6 Application recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2/15 DocID018658 Rev 7





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