sp332ct-tr Exar Corporation, sp332ct-tr Datasheet - Page 6

• Manufacturer Part Number: sp332ct-tr
• Description: Rs-232/rs-485 Multi-mode Serial Transceiver
• Manufacturer: Exar Corporation

TGoddard/SP332/9617R0
Figure 9. Charge Pump Phase 1
Figure 11. Charge Pump Phase 3
Figure 8. Charge Pump Waveforms
C
C
1
1
+
–
+
–
V
V
CC
CC
= +5V
= +5V
a) C
b) C
–10V
GND
GND
+10V
C
2
2
C
2
+
–
2
–10V
+
+10V
–
+
–
V
5V
CC1
1 F
1 F
+
–
1 F
1 F
+
C
–
RS-232
C
C
V.35
4
C
DX
DX
DX
DX
DX
DX
4
V
+
3
–
RX
RX
RX
RX
RX
RX
RX
3
+
CC1
–
1 F
1 F
V
V
V
V
SP332 RS-232/RS-485 Multi-Mode Serial Transceiver
DD
SS
DD
SS
Storage Capacitor
Storage Capacitor
Storage Capacitor
Storage Capacitor
1 F
1 F
T
T
T
T
T
34-PIN DTE/DCE
CONNECTOR
INTERFACE
ISO 2593
AA
NN
P
S
U
W
Y
X
V
T
R
B
A
H
C
E
D
F
N
L
T
CABLE SHIELD
SCTE (113)
CTS (106)
DCD (109)
=
TXD (103)
RXC (115)
TXD (104)
DTR (108)
RTS (105)
TXC (114)
GND (102)
DSR (107)
TM (142)
RDL (140)
LLB (141)
6
50
50
34-PIN DTE/DCE
CONNECTOR
125
INTERFACE
ISO 2593
NN
W
AA
P
S
U
Y
X
V
T
R
B
A
H
C
E
D
F
N
L
Figure 10. Charge Pump Phase 2
Figure 12. Charge Pump Phase 4
T
T
T
T
T
C
C
1
–5V
1
1 F
+
–
–5V
+
–
V
V
CC
V
1 F
CC2
CC
1 F
RS-232
RX
RX
V.35
= +5V
RX
RX
RX
RX
DX
DX
DX
= +5V
DX
DX
DX
DX
1 F
1 F
C
C
2
2
+5V
–5V
+
1 F
–
+5V
–5V
+
–
V
5V
CC2
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+
–
C
+
–
C
C
4
C
3
+
4
–
3
+
–
V
V
V
V
DD
SS
DD
SS
Storage Capacitor
Storage Capacitor
Storage Capacitor
Storage Capacitor