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SP3249EEY-L Datasheet, PDF (10/16 Pages) Exar Corporation – Intelligent 3.0V to 5.5V RS-232 Transceiver | |||
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VCC = +5V
+
C1 â
â5V
+5V
+
C2 â
â5V
Figure 11. Charge Pump â Phase 1
VCC = +5V
+
C1 â
Figure 12. 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 13. Charge Pump â Phase 3
C4
+ â VDD Storage Capacitor
â + VSS Storage Capacitor
C3
VCC = +5V
+
C1 â
+5.5V
+
C2 â
Figure 14. 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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SP3249E_100_013111
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