BeStar BCM9750-47U - Manual (Page 2)

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E-Mail:bestarco@ pub.cz.jsinfo.net Http:www.be-star.com
BESTAR ELECTRONICS INDUSTRY CO.,LTD
TianAn Industry Park 4/F,Site B ChangZhou New District
A
6 5
CHEC.
APPR.
DIS.
3rd angle
projection
Page:1 of 3
4 3
DATE
DATE
DATE
A
Bestar Electronics
2
DRG NO
1
Microphone
Frequency Resonse Curve
B
C
D
B
C
D
No. Item Specifications
1 Sensitivity -47 4dB(0dB=1V/Pa,1kHz)(L=50cm)
2 Impedance Less than 680ohm
3 Directional Unidirectional
5 S/N Ratio more than 60dB(0dB=1V/Pa,1kHz)
6 Decreaing Voltage Characteristic -3dB(Vs=1.5V)
7 Frequency Response 100Hz~16kHz
8 Rated Voltage 1.5V
9 Max. Voltage 10V
E
F
G
E
F
G
1. Characteristics
Test Condition (Vs=1.5V RL=680ohm
Ta=20 C R.H.=65%)
H
6 5
BeStar
4 3 2
H
1
BCM9750-47U
-10
-30
-20
20
180
500 50 200 100
+30
+10
0
0
1k 2k 5k 10k 20k
BS/TEM01.044A
BCM9750-47U
Re
la
tive
Re
sp
o
n
s
e
(
d
B
)