
1812A/1812B/1813
APPLICATION CIRCUITS(Cont.)
Hand touch trigger
Piezo
1 VSS OSC1 8 Rosc
2 OUT OSC2 7
3 OUT
4 LED
6
KEY
VDD 5
8050
UTC1812A
VDD
100Ω
VDD
Hand
Touch
APPLICATION CIRCUITS (1812-SIREN I)
VDD
8050
100Ω
270KΩ
1 VSS OSC1 8
2 OUT OSC2 7
3 OUT
6
KEY
4 LED VDD 5
VDD
UTC 1812A
100Ω
CMOS IC
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
6 of 7
QW-R502-006.F