![](/html/Holtek/66375/page6.png)
External switching frequency
10mF
2 CAP+
4 CAP-
3 VSS
8
VDD
O SC 7
VO UT 5
H T7660
V DD
V DD
1kW
CM OS
G a te
V OUT
10mF
Lower switching frequency
V DD
8
VDD
2 CAP+
7
C O SC
O SC
10mF
4 CAP-
3 VSS
5
VO UT
V OUT
10mF
H T7660
N o te : C O S C is te n s o f p ic o fa r a d
HT7660
6
November 30, 1999