SP3243E EXAR [Exar Corporation], SP3243E Datasheet - Page 13

• Manufacturer Part Number: SP3243E
• Description: 3 Driver/5 Receiver Intelligent +3.0V to +5.5V RS-232 Transceivers
• Manufacturer: EXAR [Exar Corporation]

Figure 15. Charge Pump — Phase 1
Figure 17. Charge Pump — Phase 3
Figure 16. Charge Pump — Phase 2
Figure 18. Charge Pump — Phase 4
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
C
C
C
1
1
1
–5V
+
–
+
–
C
V
V
+
–
1
CC
V
CC
–5V
+
–
CC
V
= +5V
= +5V
CC
= +5V
= +5V
C
C
2
2
+5.5V
C
+5V
–5V
+
–
+
–
C
2
2
-5.5V
+
–
+5V
–5V
+
–
13
+
–
C
+
–
C
C
C
4
4
+
3
–
+
3
–
+
–
C
+
–
C
C
4
C
3
+
4
V
V
–
V
V
+
3
–
DD
SS
DD
SS
V
V
Storage Capacitor
Storage Capacito r
DD
SS
V
V
Storage Capacitor
Storage Capacitor
DD
SS
Storage Capacitor
Storage Capacitor
Storage Capacitor
Storage Capacito r
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