sp3222eucy-tr Exar Corporation, sp3222eucy-tr Datasheet - Page 12

• Manufacturer Part Number: sp3222eucy-tr
• Description: Sp3232eh -3.3v, 460kbps Rs-232 Transceivers
• Manufacturer: Exar Corporation

Figure 16. Charge Pump — Phase 2
Figure 17. Charge Pump Waveforms
Figure 18. Charge Pump — Phase 3
Figure 19. Charge Pump — Phase 4
Date: 02/31/06
Figure 15. Charge Pump — Phase 1
SP3222EU, SP3232EU 3.3V, 1000Kbps RS-232 Transceivers
GND
GND
a) C
b) C
+6V
1
2
-6V
2+
2
-
Ch1 2.00V
C
C
C
C
1
1
–5V
1
1
+
–
+
–
–5V
+
–
+
–
V
V
V
V
CC
CC
CC
[
CC
Ch2
= +5V
= +5V
= +5V
= +5V
2.00V M 1.00µs Ch1 5.48V
12
C
T
C
T
T
C
C
2
2
2
2
+5V
–5V
+10V
+
+5V
–5V
–
–10V
+
–
+
–
+
–
]
+
+
–
–
C
C
+
–
+
–
C
C
C
C
4
4
C
3
3
C
4
+
+
–
4
–
3
+
+
–
3
–
V
V
V
V
V
V
DD
SS
V
V
DD
SS
DD
SS
DD
SS
Storage Capacitor
Storage Capacitor
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