CS4121EDWFR20 データシートの表示（PDF） - Cherry semiconductor
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CS4121EDWFR20 Datasheet PDF : 8 Pages
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Circuit Description and Application Notes: continued
VREG
FREQIN
R3
VC(t)
+Ð
SQOUT
CT R4
+
Ð
QSQUARE
2.0V
0.25V
CP+
Q1
2.0V
Q3 CPÐ
Q2
+
Ð
RT
F/VOUT
F to V
C4
Figure 5A: Partial Schematic of Input and Charge Pump
PW
VCC
FREQIN 0
SQOUT
0
VREG
ICP+
VCP+
0
T
T-PW
Figure 5B: Timing Diagram of FREQIN and ICP
6
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