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PDF MP34DT01-M Data sheet ( Hoja de datos )
| Número de pieza | MP34DT01-M | |
| Descripción | MEMS audio sensor omnidirectional digital microphone | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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MP34DT01-M
MEMS audio sensor omnidirectional digital microphone
Datasheet - production data
• VoIP
• Speech recognition
• A/V eLearning devices
• Gaming and virtual reality input devices
• Digital still and video cameras
• Antitheft systems
HCLGA (3 x 4 x 1.06 4LD)
Features
• Single supply voltage
• Low power consumption
• 120 dBSPL acoustic overload point
• 61 dB signal-to-noise ratio
• Omnidirectional sensitivity
• – 26 dBFS sensitivity
• PDM output
• HCLGA package
– Top-port design
– SMD-compliant
– EMI-shielded
– ECOPACK®, RoHS, and “Green” compliant
Description
The MP34DT01-M is an ultra-compact, low-
power, omnidirectional, digital MEMS microphone
built with a capacitive sensing element and an IC
interface.
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 MP34DT01-M has an acoustic overload point
of 120 dBSPL with a 61 dB signal-to-noise ratio
and –26 dBFS sensitivity.
The MP34DT01-M is available in a top-port, SMD-
compliant, EMI-shielded package and is
guaranteed to operate over an extended
temperature range from -40 °C to +85 °C.
Applications
• Mobile terminals
• Laptop and notebook computers
• Portable media players
Table 1. Device summary
Order codes
Temperature range [°C]
Package
MP34DT01-M
MP34DT01TR-M
-40 to +85
HCLGA (3 x 4 x 1.06) mm 4LD
Packing
Tray
Tape and reel
September 2014
This is information on a product in full production.
DocID026514 Rev 3
1/17
www.st.com
1 page  
MP34DT01-M
Acoustic and electrical specifications
2.2 Frequency response
Figure 2. Typical frequency response normalized at 1 kHz
DocID026514 Rev 3
5/17
17
5 Page 
MP34DT01-M
6 Functionality
Functionality
6.1 L/R channel selection
The L/R digital pad lets the user select the DOUT signal pattern as shown in Table 7. The
L/R pin must be connected to Vdd or GND.
L/R
GND
Vdd
Table 7. L/R channel selection
CLK low
Data valid
High impedance
CLK high
High impedance
Data valid
DocID026514 Rev 3
11/17
17
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet MP34DT01-M.PDF ] | |
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