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MP23DB02MM Fiches technique(PDF) 6 Page - STMicroelectronics

No de pièce MP23DB02MM
Description  MEMS audio sensor: digital microphone with multiple performance modes
PDF  15 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

MP23DB02MM Fiches technique(HTML) 6 Page - STMicroelectronics

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2.3
Typical performance curves
Figure 3. Typical free-field response normalized to 1 kHz
Figure 4. Typical PSRR
-10
-8
-6
-4
-2
0
2
4
6
8
10
10
100
1000
10000
Frequency [Hz]
Low
Power
Mode
Normal
Mode
40
50
60
70
80
90
100
110
100
1000
10000
Frequency [Hz]
Low
Power
Mode
Normal
Mode
Figure 5. Typical THD at 1 kHz vs. sound pressure level
Figure 6. Typical Idd vs. Vdd
0.1
1
10
90
100
110
120
130
140
S.P.L. [dBSPL]
Low
Power
Mode
Normal
Mode
0
200
400
600
800
1000
1200
1.6
1.8
2
2.2
2.4
2.6
2.8
3
3.2
3.4
3.6
Vdd [V]
Fclk 3.072MHz
Fclk 2.4MHz
Fclk 1.536MHz
Fclk 0.768MHz
Fclk 0 MHz
Figure 7. Typical THD at 1 kHz vs. sound pressure level
Figure 8. Noise floor power spectral density
0.01
0.1
1
10
100
1000
10000
Frequency [Hz]
115dB SPL
106dB SPL
94 dB SPL
120dB SPL
-160
-150
-140
-130
-120
-110
-100
-90
-80
10
100
1000
10000
Frequency [Hz]
Fclk 0.768MHz
Fclk 2.4MHz
Fclk 3.072MHz
MP23DB02MM
Typical performance curves
DS13521 - Rev 3
page 6/15



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