Datasheet

OF9745C-40CS-L01000-00-0
VANSONICENTERPRISECO.,LTD.
3F., No. 123, Zhongcheng Rd., Tucheng Dist., New Taipei City, Taiwan.
E-mail: [e-mail] http://www.veco.com.tw
TEL: [phone] FAX: [phone]
1.
Name：
Omni directional FILM Electret Condenser Microphone
2. Model No.
PVM9745-C40CS
3.
Scope：
Electrical Characteristics （Temperature =20±2℃ Humidity=65±5%）
Parameter Symbol Condition
Limits
Unit
Min. Center Max.
3.1 Sensitivity S
0dB=1V/Pa，at 1kHz
-42.5 -40 -37.5 dB
3.2 Output impedance Z out f=1kHz 2.2
KΩ
3.3 Current Consumption I
DSS
V
CC
=3.0 V,R
L
=2.2KΩ
500 µA
3.4 Signal to Noise Ratio S/N
at 1kHz S.P.L=1Pa
(A-Weighted Curve)
58 dB
3.5 Decreasing Voltage
ΔS
V
CC
=3.0V to2.0V -3 dB
3.6 Operating Voltage 1.0 10 V
3.7 Maximum input S.P.L 110 dB
3.8 Typical Frequency Response Curve
Frequency Response Microphone Response Tolerance Window
Frequency(Hz) Lower Limit(dB) Upper Limit(dB)
50 -6 +3
100 -3 +3
800 -3 +3
1000 0 0
1200 -3 +3
3000 -3 +8
5000 -3 +8
10000 -8 +8
3.9 Measurement Circuit
R
L
=2.2KΩ
Vs =3.0V
C=1µF