sp3222eey-tr Exar Corporation, sp3222eey-tr Datasheet - Page 12

• Manufacturer Part Number: sp3222eey-tr
• Description: Sp3232e -true +3.0v To +5.5v Rs-232 Transceivers
• Manufacturer: Exar Corporation

Figure 13. Charge Pump — Phase 2
Figure 14. Charge Pump Waveforms
Figure 15. Charge Pump — Phase 3
Figure 16. Charge Pump — Phase 4
Date: 08/22/05
Figure 12. Charge Pump — Phase 1
SP3222E, SP3232E True +3.0 to +5.0V RS-232 Transceivers
GND
GND
a) C
b) C
C
C
C
C
+6V
1
-6V
2
1
1
–5V
1
2+
1
2
-
+
–
–5V
+
–
+
–
+
–
V
V
V
V
Ch1 2.00V
CC
CC
CC
CC
= +5V
= +5V
= +5V
= +5V
[
Ch2
C
C
C
C
2
2
2
2
+5V
–5V
–10V
+
+10V
–
+5V
–5V
+
+
–
–
+
–
2.00V M 1.00µs Ch1 5.48V
12
T
T
T
+
–
+
+
–
C
–
+
–
C
C
C
C
C
C
4
C
4
4
3
4
+
–
+
3
3
+
3
–
+
–
–
]
V
V
V
V
V
V
V
V
DD
SS
DD
SS
DD
SS
DD
SS
Storage Capacitor
Storage Capacitor
Storage Capacitor
Storage Capacitor
Storage Capacitor
Storage Capacitor
Storage Capacitor
Storage Capacitor
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