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SP3238 Datasheet, PDF (11/19 Pages) Sipex Corporation – Intelligent +3.0V to +5.5V RS-232 Transceiver | |||
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RECEIVER +2.7V
RS-232 INPUT 0V
VOLTAGES -2.7V
VCC
STATUS
0V
+5V
DRIVER
RS-232 OUTPUT 0V
VOLTAGES
-5V
Figure 10. AUTO ON-LINE® Timing Waveforms
S
H
U
T
D
O
W
N
tSTSL
tSTSH
tONLINE
Figure 11. Charge Pump â Phase 1
VCC = +5V
+
C1 â
â5V
+5V
+
C2 â
â5V
C4
+ â VDD Storage Capacitor
â + VSS Storage Capacitor
C3
VCC = +5V
+
C1 â
Figure 12. Charge Pump â Phase 2
+
C2 â
â10V
C4
+ â VDD Storage Capacitor
â + VSS Storage Capacitor
C3
Rev. 6/30/03
SP3238 Intelligent +3.0V to +5.5V RS-232 Transceiver
11
© Copyright 2003 Sipex Corporation
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