BeStar BCM4520OSF-42 - Manual (Page 3)

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2. Drawing
0
30 330
BCM4520OSF-42
120
60
90
★Angular Response
220
300
270
180
150 210
BCM4520OSF-42
Microphone
filter
Shield Case
ECM unit
FET impedance
Converter
3. Measurement Circuit:
GND
Terminal 2
Output
Power Supply 4.5V
RL=2.2K
Terminal 1
C:10μ F
Page:2 of 5 DRG NO: B/TEM01.119A
+
Terminal 1
Terminal 2
+
-
-
A
Rev. Drawn Approved by: Note
Checked by:
Drawn by:
Date:
王焕焕
Date
王焕焕 A 徐 波
王 平
10.06.27
10.06.27
4
.5
±0
.1
2.0 ±0.2