mp45dt01 STMicroelectronics, mp45dt01 Datasheet - Page 4

• Manufacturer Part Number: mp45dt01
• Description: Mems Audio Sensor Omni-directional Digital Microphone
• Manufacturer: STMicroelectronics

Acoustic and electrical specifications
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2.1
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Acoustic and electrical specifications
Acoustic and electrical characteristics
Characteristics @ Vdd = 1.8 V, Clock = 2.4 MHz, T = 25 °C unless otherwise noted.
Table 3.
1. Typical specifications are not guaranteed.
2. Input clock in static mode.
3. Test signal: 217Hz square wave, 100 mVpp on Vdd pin.
4. Duty cycle: min=40% max=60%.
5. Time from the first clock edge to valid output data.
Table 4.
Symbo
IddPdn
Clock
TWK
AOP
SNR
PSR
Vdd
Scc
Top
Idd
So
l
Parameter
Distorsion
Distorsion
Supply voltage
Current consumption in
normal mode
Current consumption in
power-down mode
Short circuit current
Acoustic overload point
Sensitivity
Signal to noise ratio
Power supply rejection
Input clock frequency
Wake up time
Operating temperature
range
Electrical characteristics
Distorsion specifications
Parameter
(5)
(2)
100 dBSPL (50Hz - 4kHz)
(4)
Doc ID 17801 Rev 1
115 dBSPL (1kHz)
Test condition
No load on data line
A-weighted @1 kHz,
1Pa
guaranteed by
design
guaranteed by design
Test condition
(3)
Min.
1.64
-30
1
1
Typ.
0.65
120
-26
-70
1.8
2.4
20
58
<1 % THD + N
<5 % THD + N
(1)
Value
Max.
3.25
+85
3.6
10
10
MP45DT01
dBSP
dBFS
dBFS
MHz
Unit
mA
mA
ms
µA
dB
°C
V
L