1
2
3
4
5
6
33
32
31
30
29
28
EN_R2
EN_R3
R1IN(a)
R1IN(b)
R2IN(a)
R2IN(b)
R3IN(a)
R3IN(b)
T1IN
T1OUT(a)
T1OUT(b)
GND
VCC
T2OUT(a)
T2OUT(b)
GND
27
26
25
24
23
7
8
SP322
VCC
9
T3OUT(a)
T3OUT(b)
GND
10
11
T2IN
T3IN
Figure 25. SP322 Pinout
+5V
1.0µF
1.0µF
C1+
V
CC
V
DD
1.0µF
1.0µF
Charge Pump
C1–
C2+
C2–
V
SS
1.0µF
SP322
T1OUTA
T1
T1OUTB
T1IN
T1ENA
T2OUTA
T2OUTB
T2
T3
T2IN
T2ENA
T3OUTA
T3OUTB
T3IN
T3ENA
R1INA
R1INB
R1
T
R1OUT
R1ENA
R2INA
R2INB
R2
R3
T
T
R2OUT
R2ENA
R3INA
R3INB
R3OUT
R3ENA
V.11_TERM
V.11/V.35
SD
GND
Figure 26. SP322 Typical Operating Circuit
SP322DS/06
Date: 10/1/05
SP322 V.11/V.35 Serial Transceiver
SP322 V.11/V.35 Serial Transceiver
© Copyright 1997 Sipex Corporation
© Copyright 2005 Sipex Corporation
9
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