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MP34DT01-M Datasheet(PDF) 4 Page - STMicroelectronics

Part No. MP34DT01-M
Description  MEMS audio sensor omnidirectional digital microphone
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

MP34DT01-M Datasheet(HTML) 4 Page - STMicroelectronics

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Acoustic and electrical specifications
MP34DT01-M
4/17
DocID026514 Rev 3
2
Acoustic and electrical specifications
2.1
Acoustic and electrical characteristics
The values listed in the table below are specified for Vdd = 1.8 V, Clock = 2.4 MHz,
T = 25 °C, unless otherwise noted.
Table 3. Acoustic and electrical characteristics
Symbol
Parameter
Test condition
Min.
Typ. (1)
1.
Typical specifications are not guaranteed.
Max.
Unit
Vdd
Supply voltage
1.64
1.8
3.6
V
Idd
Current consumption in
normal mode
Mean value
0.6
mA
IddPdn
Current consumption in
power-down mode (2)
2.
Input clock in static mode.
20
µA
Scc
Short-circuit current
1
10
mA
AOP
Acoustic overload point
120
dBSPL
So
Sensitivity
-29
-26
-23
dBFS
SNR
Signal-to-noise ratio
A-weighted at 1 kHz,
1 Pa
61
dB
PSR
Power supply rejection
Guaranteed by
design
-70
dBFS
Clock
Input clock frequency (3)
3.
Duty cycle: min = 40% max = 60%.
1
2.4
3.25
MHz
Ton
Turn-on time (4)
4.
Time from the first clock edge to valid output data.
Guaranteed by
design
10
ms
Top
Operating temperature
range
-40
+85
°C
VIOL
Low level logic
input/output voltage
Iout = 1 mA
-0.3
0.35xVdd
V
VIOH
High level logic
input/output voltage
Iout = 1 mA
0.65xVdd
Vdd+0.3
V
Table 4. Distortion specifications
Parameter
Test condition
Value
Distortion
100 dBSPL (1 kHz)
< 1% THD+N
Distortion
115 dBSPL (1 kHz)
< 2% THD+N
Distortion
120 dBSPL (1 kHz)
< 10% THD+N


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