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  • MEMS

MA-FRA381-A13-8

The MA-FRA381-A13-8 is a small package, single-ended output bottom port analog MEMS microphone, consists of a MEMS sensor and a low noise level ASIC.

Features
  • 2.75x1.85x1.1mm Bottom Port

  • Single Ended Output

  • High SNR

  • Narrow Sensitivity +/-1dB

  • RF Shielded

  • Compatible with Standard SMD Reflow Technology

  • RoHSCompliance&Halogen Free

Performance Parameters

ParameterSymbol
ConditionMin
Nom.
MaxUnit
SensitivitySf=1kHz, Pin=1Pa, 0dB=1V/Pa-39-38-37dB
Operating VoltageVDD
2.42.753.3V
Directivity

Omni-directional
Polarity
Sound pressure increaseOutput voltage increase
Sensitivity vs. VoltageΔSVs= 3.3V to 2.4V0.5dB
Output ImpedanceZOUTf=1kHz

400
Ω
Current Consumption1I2.4 V to 3.3V
125200µA
S/N RatioS/Nf=1kHz, BW=20-5kHz,   A-Weighted
69
dBA
f=1kHz, BW=20-8kHz,   A-Weighted
68
dBA
=1kHz, BW=20-20kHz,   A-Weighted
67
dBA
Total Harmonic DistortionTHD94dB SPL @1KHz
0.110.5%
Total Harmonic DistortionTHD125dBSPL @1KHz
1
%
Acoustic Overload PoinAOPTHD 10%@1KHz
130
dBSPL
Power Supply RejectionPSR100mVpp Squarewave @217Hz, A-weighted

-95dB
Power Supply Rejection RatioPSRR200mVpp Sinewave @1KHz60

dB
DC outputVDC

1.3
V
Output load
Cload


150pF
Output loadRload
0.01
10

Note:Frequency response, sensitivity and current consumption are tested by 100% on product line.


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