Filter, Drawing, Microphone – BeStar BCM4527OLBC-44 User Manual
Page 3: Angular response, Measurement circuit, C:1μf

C
A
6
Rev.
Date
5
Drawn
B
Approved by:
4
Note
Date:
Checked by:
Drawn by:
3
2
T
h
is
p
ri
n
t
and
i
n
fo
rm
a
ti
on
t
he
re
i
n
a
re
p
rop
ri
e
ta
ry
t
o
B
e
s
ta
r E
le
c
tr
on
ics
I
ndu
s
tr
y
C
o
.,
L
td.
and
s
ha
ll
no
t
be
u
s
ed
i
n
w
ho
le
o
r
in
p
a
rt
w
it
hou
t
it
s
wr
itt
en
c
on
tent
D
E
G
F
H
6
5
4
3
2
C
A
1
B
D
E
F
G
H
1
08.05.23
2. Drawing
0
30
330
BCM4527OLBC-44
120
60
90
★Angular Response
220
300
270
180
150
210
BCM4527OLBC-44
Microphone
徐金国
filter
Shield Case
ECM unit
C2
33pF
C1
10pF
FET impedance
Converter
3. Measurement Circuit:
GND
Terminal 2
Output
Power Supply 2.0V
RL=2.2K
Terminal 1
C:1μF
Page:2 of 5
DRG NO: B/TEM01.095B
王丽娟
徐金国
05.06.14
A
B
08.05.23
李毕佳
张秀琴
+
Terminal 1
Terminal 2
2.7
±0.15
4
.5
±
0
.1
+
-