SP3223 Sipex, SP3223 Datasheet - Page 14

• Manufacturer Part Number: SP3223
• Description: Intelligent +3.0V to +5.5V RS-232 Transceivers
• Manufacturer: Sipex

Rev. 6/30/03
Figure 16. Charge Pump — Phase 1
Figure 18. Charge Pump Waveforms
Figure 19. Charge Pump — Phase 3
Figure 20. Charge Pump — Phase 4
Figure 17. Charge Pump — Phase 2
2
C
1
+
–
b) C
V
a) C
C
CC
1
2
C
1
–5V
1
+
–
2+
2
= +5V
C
-
V
+
–
1
Ch1 2.00V
CC
V
–5V
+
–
CC
V
= +5V
CC
= +5V
= +5V
C
2
SP3223 +3.0V to +5.5V RS-232 Transceivers
+10V
+
–
[
C
2
Ch2
C
C
+5V
–5V
+
–
2
2
+5V
–5V
–10V
+
–
+
–
2.00V M 1.00µs Ch1 1.96V
14
+
–
C
T
T
T
C
4
3
+
–
+
–
C
V
V
+
C
–
C
4
DD
SS
C
3
+
4
–
+
–
3
+
C
–
Storage Capacitor
Storage Capacitor
C
4
V
V
+
3
–
V
V
DD
SS
DD
SS
V
V
]
Storage Capacitor
Storage Capacitor
Storage Capacitor
Storage Capacitor
DD
SS
Storage Capacitor
Storage Capacitor
+6V
-6V
0V
0V
© Copyright 2003 Sipex Corporation