Microphone

Omni-directional microphone EMC9745 condenser microphone

  • 9mmx4.5mm Omni-directional mini eletret microphone condenser mic capsule 9745 for household electrical appliances,computer,toy,telephone,cell phone,earphone,headset headphone,medical,meter and instr

  • Availability: Available
  • Brand: Esuntech
  • MODEL: EMC9745
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Product Description

9mmx4.5mm  Omni-directional mini eletret 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.        

图片1

Test Conditions：VS=4.5V，RL=2.2KΩ,Temp=20±2°C, R.H=60±5%

ITEMSymbolTest ConditionsMinStandardMaxUnit
Sensitivity  Sf=1KHz,-40-38-36   dB
S.P.L=1μBar0dB=1V/μBar
Impedance  Zf=1KHz,

2.2KΩ
S.P.L=1μBar
Directivity                  Omni-directional
Current  Consumption  I


500μA
Operation Voltage Range  VS
1210V
S/N Ratio S/N(A)f=1KHz,S.P.L=1Pa55

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

-3dB
VS=4.5-3.0V
Max.Input Sound Level MISPLf=1KHz,

115dB
Distortion≤3%

图片2

TEST CIRCIUT

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

3

Test Setup Drawing

333


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