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ADMP411 датащи(PDF) 3 Page - Analog Devices

номер детали ADMP411
подробное описание детали  High SPL Microphone with Bottom Port and Analog Output
PDF  12 Pages
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
Logo AD - Analog Devices

ADMP411 датащи(HTML) 3 Page - Analog Devices

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Data Sheet
ADMP411
Rev. 0 | Page 3 of 12
SPECIFICATIONS
TA = 25°C, VDD = 1.8 V, unless otherwise noted. All minimum and maximum specifications are guaranteed. Typical specifications are not
guaranteed.
Table 1.
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
PERFORMANCE
Directionality
Omni
Sensitivity
1 kHz, 94 dB SPL
−48
−46
−44
dBV
Signal-to-Noise Ratio (SNR)
20 Hz to 20 kHz, A-weighted
62
dBA
Equivalent Input Noise (EIN)
20 Hz to 20 kHz, A-weighted
32
dBA SPL
Dynamic Range
Derived from EIN and maximum acoustic input
99
dB
Frequency Response1
Low frequency −3 dB point
28
Hz
High frequency −3 dB point
>20
kHz
Total Harmonic Distortion (THD)
105 dB SPL
0.2
1
%
Power Supply Rejection (PSR)
217 Hz, 100 mV p-p square wave superimposed on VDD = 1.8 V
−80
dBV
Power Supply Rejection Ratio (PSRR)
1 kHz, 100 mV p-p sine wave superimposed on VDD = 1.8 V
−46
dB
Acoustic Overload Point
10% THD
131
dB SPL
POWER SUPPLY
Supply Voltage (VDD)
1.5
3.63
V
Supply Current (IS)
VDD = 1.8 V
180
220
µA
VDD = 3.3 V
210
250
µA
OUTPUT CHARACTERISTICS
Output Impedance (ZOUT)
200
Ω
Output DC Offset
0.8
V
Maximum Output Voltage
131 dB SPL input
0.355
V rms
Noise Floor
20 Hz to 20 kHz, A-weighted, rms
−108
dBV
1
See Figure 5 and Figure 6.



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