Bestar BPT2203H07B-09 LF Manual de usuario Pagina 5

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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
ICbICa ICc
+
IC:CD4049
PIEZO
BUZZER
BPT2203H07B-09 LF
BPT2203H07B-09 LF
11/04/19
杨丽娟
DRG NO:BS/TEP01.800A
李红元
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Acoustics & Sensor
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