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SP3243EBCA-L-TR Datasheet, PDF (13/25 Pages) Exar Corporation – 3 Driver/5 Receiver Intelligent +3.0V to +5.5V RS-232 Transceivers | |||
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VCC = +5V
+
C1 â
â5V
+5V
+
C2 â
â5V
Figure 15. Charge Pump â Phase 1
VCC = +5V
+
C1 â
Figure 16. Charge Pump â Phase 2
+
C2 â
-5.5V
C4
+ â VDD Storage Capacitor
â + VSS Storage Capacitor
C3
C4
+ â VDD Storage Capacitor
â + VSS Storage Capacitor
C3
VCC = +5V
+
C1 â
â5V
+5V
+
C2 â
â5V
Figure 17. Charge Pump â Phase 3
C4
+ â VDD Storage Capacitor
â + VSS Storage Capacitor
C3
VCC = +5V
+
C1 â
+5.5V
+
C2 â
Figure 18. Charge Pump â Phase 4
C4
+ â VDD Storage Capacitor
â + VSS Storage Capacitor
C3
Exar Corporation 48720 Kato Road, Fremont CA, 94538 ⢠510-668-7017 ⢠www.exar.com
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SP3243E_102_060611
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