mp45dt02 STMicroelectronics, mp45dt02 Datasheet - Page 6

• Manufacturer Part Number: mp45dt02
• Description: Mems Audio Sensor Omnidirectional 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
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.
1. Typical specifications are not guaranteed.
2. Input clock in static mode.
3. Test signal: 217 Hz 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.
Symbol
IddPdn
Clock
TWK
AOP
SNR
PSR
Vdd
Scc
Top
Idd
So
Parameter
Distortion
Distortion
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
Acoustic and electrical characteristics
Distortion specifications
Parameter
(5)
100 dBSPL (50 Hz - 4 kHz)
(2)
(4)
Doc ID 018658 Rev 1
115 dBSPL (1 kHz)
Test condition
No load on data line
A-weighted @1 kHz,
1 Pa
Guaranteed by
design
Guaranteed by design
Test condition
(3)
Min.
1.64
-30
1
1
Typ.
0.65
120
1.8
-26
-70
2.4
<1 % THD + N
<5 % THD + N
20
58
(1)
Value
Max.
3.25
+85
3.6
10
10
MP45DT02
dBSPL
dBFS
dBFS
MHz
Unit
mA
mA
ms
µA
dB
°C
V