BeStar BPT2203H07B-09 LF - Manual (Page 5)

C C
Drawn
A
Rev.
6
Date
B
www.be-star.com [email protected]
Approved by:
Checked by:
Note
5 4
Date:
Drawn by:
3 2
A
1
B
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
F
G
H
6 5 4 3 2
D
E
F
G
1
H
5.Test method
Piezo Sounder
The following are examples of externally driven circuits.
1) this circuit with control terminal
2) this circuit without control terminal
1)
2)
+
0.001uF
120K Ω
ICb Input ICa
1KΩ
1KΩ
8050
PIEZO
BUZZER
IC:CD4011
1M Ω
0.001uF
120K Ω
1MΩ
ICb ICa ICc
+
IC:CD4049
PIEZO
BUZZER
BPT2203H07B-09 LF
BPT2203H07B-09 LF
11/04/19
杨丽娟
DRG NO:BS/TEP01.800A
赵 峥
李红元
Page:5 of 8
Acous tics & Sensor