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PDF MP45DT02TR Data sheet ( Hoja de datos )
| Número de pieza | MP45DT02TR | |
| Descripción | MEMS audio sensor omnidirectional digital microphone | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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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
1 page  
MP45DT02
Acoustic and electrical specifications
2.2 Timing characteristics
Table 5. Timing characteristics
Parameter
Description
Min
fCLK Clock frequency for normal mode
fPD Clock frequency for power-down mode
TCLK Clock period for normal mode
TR,EN Data enabled on DATA line, L/R pin = 1
TR,DIS Data disabled on DATA line, L/R pin = 1
TL,EN Data enabled on DATA line, L/R pin = 0
TL,DIS Data disabled on DATA line, L/R pin = 0
1. From design simulations
1
308
30(1)
30(1)
Max
3.25
0.23
1000
16(1)
16(1)
Unit
MHz
MHz
ns
ns
ns
ns
ns
Figure 2. Timing waveforms
TCLK
CLK
PDM R
PDM L
TR,EN
TR,DIS
TL,DIS
High Z
High Z
TL,EN
High Z
High Z
AM045165v1
DocID018658 Rev 7
5/15
15
5 Page 
MP45DT02
7 Package mechanical data
Package mechanical data
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK® is an ST trademark.
Soldering information
The HLGA (4.72 x 3.76 x 1.25) mm package is also compliant with the RoHS and “Green”
standards and is qualified for soldering heat resistance according to JEDEC J-STD-020.
Landing pattern and soldering recommendations are available at www.st.com.
Figure 6. Recommended soldering profile limits
tp
TP
RAMP-UP
CRITICAL ZONE
TL to T P
TL
TSMAX
tL
TSMIN
ts
PREHEAT
RAMP-DOWN
T25°C to PEAK
TIME
30 60 90 120 150 180 210 240 270 300 330 360 390
AM045166v1
Table 8. Recommended soldering profile limits
Description
Parameter
Pb free
Average ramp rate
Preheat
Minimum temperature
Maximum temperature
Time (TSMIN to TSMAX)
Ramp-up rate
Time maintained above liquidus temperature
Liquidus temperature
Peak temperature
Time within 5 °C of actual peak temperature
Ramp-down rate
Time 25 °C (t25 °C) to peak temperature
TL to TP
TSMIN
TSMAX
tS
TSMAX to TL
tL
TL
TP
3 °C/sec max
150 °C
200 °C
60 sec to 120 sec
60 sec to 150 sec
217 °C
260 °C max
20 sec to 40 sec
6 °C/sec max
8 minutes max
DocID018658 Rev 7
11/15
15
11 Page | ||
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