|
SP3232EEY-L Datasheet, PDF (11/23 Pages) Exar Corporation – Meets true EIA/TIA-232-F Standards | |||
|
◁ |
VCC = +5V
DESCRIPTION
+
C1 â
â5V
+5V
+
C2 â
â5V
Figure 11. Charge Pump â Phase 1
VCC = +5V
C4
+ â VDD Storage Capacitor
â + VSS Storage Capacitor
C3
+
C1 â
+
C2 â
-5.5V
C4
+ â VDD Storage Capacitor
â + VSS Storage Capacitor
C3
Figure 12. Charge Pump â Phase 2
[
T
]
+6V
a) C2+
GND 1
T
GND 2
b) C2-
T
-6V
Ch1 2.00V Ch2 2.00V M 1.00µs Ch1 5.48V
Figure 13. Charge Pump Waveforms
VCC = +5V
+
C1 â
â5V
+5V
+
C2 â
â5V
C4
+ â VDD Storage Capacitor
â + VSS Storage Capacitor
C3
Figure 14. Charge Pump â Phase 3
VCC = +5V
+
C1 â
+5.5V
+
C2 â
C4
+ â VDD Storage Capacitor
â + VSS Storage Capacitor
C3
Figure 15. Charge Pump â Phase 4
Exar Corporation 48720 Kato Road, Fremont CA, 94538 ⢠510-668-7017 ⢠www.exar.com
11
SP3222E/SP3232E_101_031413
|
▷ |