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  • MEMS

MA-FRA381-A13-4A

The MA-FRA381-A13-4A is a small package, single-ended output bottom port analog MEMS microphone, consists of a MEMS sensor and a low noise level ASIC.

Features

  • 2.75x1.85x0.9mm Bottom Port

  • Single Ended Output

  • Narrow Sensitivity +/-1dB

  • SNR of 62.5dBA

  • RF Shielded

  • Compatible with Standard SMD Reflow Technology

  • RoHS Compliance & Halogen Free

Performance Parameters

ParameterSymbol
ConditionMin
Nom.
MaxUnit
SensitivitySf=1kHz, Pin=1Pa, 0dB=1V/Pa-39-38-37dB
Operating VoltageVDD
1.623.3V
Directivity

Omni-directional
Polarity
Sound pressure increaseOutput voltage increase
Sensitivity vs. VoltageΔS1.6 V to 3.3V0.5dB
Output ImpedanceZOUTf=1kHz

400Ω
Current Consumption1I2.3 V to 3V
85200µA
S/N RatioS/N20-20KHz Bandwidth, A-Weighted60.562.5
dBA
Total Harmonic DistortionTHD94dB SPL @1KHz
0.110.5%
Total Harmonic DistortionTHD131dBSPL @1KHz
1
%
Acoustic Overload PoinAOPTHD 10%@1KHz
124
dBSPL
Power Supply RejectionPSR100mVpp Squarewave @217Hz, A-weighted
-95-80dB
Power Supply Rejection RatioPSRR200mVpp Sinewave @1KHz6064
dB
DC outputVDC

0.85
V
Output load
Cload


150pF
Output loadRload
10
100KΩ

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


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