LTC1343 Linear Technology, LTC1343 Datasheet - Page 22

• Manufacturer Part Number: LTC1343
• Description: Software-Selectable Multiprotocol Transceiver
• Manufacturer: Linear Technology

LTC1343
APPLICATIONS
22
SCTE
RXD
RXC
DSR
DCD
DTR
TXC
TXD
CTS
RTS
TM
RL
LL
U
V
V
CC
CC
INFORMATION
U
Figure 34. Controller-Selectable Multiprotocol DTE/DCE Port with DB-25
21
10
12
13
14
15
16
10
12
13
14
15
16
10
12
13
14
15
16
21
10
12
13
14
15
16
21
21
9
9
5
6
7
9
5
6
7
5
6
7
5
9
6
7
DCE
DCE
DCE
DCE
LTC1343
LTC1343
LTC1343
LTC1343
D1
D2
D3
D4
D1
D2
D3
D4
D1
D2
D3
D4
D1
D2
D3
D4
R2
R4
R2
R4
R2
R4
R2
R4
R1
R3
R1
R3
R1
R3
R1
R3
W
39
38
37
36
35
34
33
32
31
30
29
28
27
26
39
38
37
36
35
34
33
32
31
30
29
28
27
26
39
38
37
36
35
34
33
32
31
30
29
28
27
26
39
38
37
36
35
34
33
32
31
30
29
28
27
26
U
LTC1344
100pF
C6
3
5
4
100pF
C7
8
6
7
100pF
C8
11
9
10
12
16
13
15
18
17
19
DCE/DTE
20 22
DCE/
DTE
24
16
17
15
12
11
14
18
13
22
10
20
23
19
25
21
7
5
6
8
1
3
9
2
4
DB-25 CONNECTOR
SHIELD (101)
TM A (142)
RXD A (104)
RXD B
RXC A (115)
RXC B
TXC A (114)
TXC B
SCTE A (113)
SCTE B
TXD A (103)
TXD B
LL A (141)
SGND (102)
CTS A (106)
CTS B
DSR A (107)
DSR B
DCD A (109)
DCD B
DTR A (108)
DTR B
RTS A (105)
RTS B
RL A (140)
1343 F34