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SP3232EB Datasheet(PDF) 11 Page - Exar Corporation

Part # SP3232EB
Description  True 3.0V to 5.5V RS-232 Transceivers
PDF  22 Pages
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

SP3232EB Datasheet(HTML) 11 Page - Exar Corporation

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Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
SP3222EB/SP3232EB_103_081414
11
Figure 14. Charge Pump — Phase 2
VCC = +5V
VSS Storage Capacitor
VDD Storage Capacitor
C1
C2
C3
C4
+
+
+
+
–
–
–
–
-5.5V
VCC = +5V
–5V
–5V
+5V
VSS Storage Capacitor
VDD Storage Capacitor
C1
C2
C3
C4
+
+
+
+
–
–
–
–
Figure 13. Charge Pump — Phase 1
Figure 16. Charge Pump — Phase 3
VCC = +5V
–5V
–5V
+5V
VSS Storage Capacitor
VDD Storage Capacitor
C1
C2
C3
C4
+
+
+
+
–
–
–
–
Figure 17. Charge Pump — Phase 4
VCC = +5V
VSS Storage Capacitor
VDD Storage Capacitor
C1
C2
C3
C4
+
+
+
+
–
–
–
–
+5.5V
Figure 15. Charge Pump Waveforms
Ch1
2.00V
Ch2
2.00V
M 1.00ms Ch1
5.48V
2
1
T
T
[]
T
+6V
a) C2+
b) C2-
GND
GND
-6V
DESCRIPTION



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