Microphone

Noise Cancelling microphone EMC9745-1C eletret microphone

  • 9.7mmx4.5mm Omni-directional Noise Cancelling mini capacitive microphone condenser mic capsule 9745 for household electrical appliances,computer,toy,telephone,cell phone,earphone,headset headphone,m

  • Availability: Available
  • Brand: Esuntech
  • MODEL: EMC9745-1C
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Product Description

9.7mmx4.5mm  Omni-directional Noise Cancelling mini capacitive microphone condenser mic capsule 9745  for household electrical appliances,computer,toy,telephone,cell phone,earphone,headset headphone,medical,meter and instrument - Changzhou Esuntech Co Ltd.        

2

Test Conditions：VS=2.0V，RL=2.2KΩ,Temp=20±2°C, R.H=60±5%

ITEMSymbolTest ConditionsMinStandardMaxUnit
SensitivitySf=1KHz,-58-55-52dB
S.P.L=1Pa0dB=1V/Pa
ImpedanceZf=1KHz,

2.2KΩ
S.P.L=1Pa
DirectivityOmni-directional
Current  ConsumptionI


500μA
Operation Voltage RangeVS
1210V
S/N RatioS/N(A)f=1KHz,55

dB
S.P.L=1Pa
A Curve
Decreacing Voltage Characteristic△Sf=1KHz,

-3dB
S.P.L=1Pa
VS=4.5-3.0V
Max.Input Sound LevelMISPLf=1KHz,

115dB
Distortion≤3%

图片2

TEST CIRCIUT

Vs:Source Voltage 2.0 V   RL:Load Resistance 2.2KΩ

图片3

Test Setup Drawing

333



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