LTC1343 Linear Technology, LTC1343 Datasheet - Page 19

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

APPLICATIONS
LATCH
SCTE
RXC
RXD
RTS
DTR
DCD
DSR
TXD
TXC
CTS
TM
RL
M2
M1
M0
LB
LL
+
U
V
+
CC
C3
1 F
V
C11
1 F
CC
+
+
V
5V
CC
Figure 31: Controller-Selectable Multiprotocol DTE Port with DB-25 Connector
INFORMATION
1 F
1 F
C1
C9
U
100k
100k
C12
1 F
C5
1 F
R1
R2
+
+
40
23
40
23
10
12
13
14
15
16
20
22
11
25
10
12
13
14
15
16
20
22
11
25
1
2
4
3
8
1
2
4
3
8
5
6
7
5
9
9
6
7
CTRL
LATCH
INVERT
423 SET
GND
LB
CTRL
LATCH
INVERT
423 SET
GND
LB
LTC1343
LTC1343
W
CHARGE
CHARGE
PUMP
PUMP
D1
D2
D3
D4
D1
D2
D3
D4
R2
R4
R2
R4
R1
R3
R1
R3
DCE
DCE
M2
M1
M0
M2
M1
M0
EC
EC
44
43
42
41
39
38
37
36
35
34
33
32
31
30
29
28
27
26
21
19
18
17
24
44
43
42
41
39
38
37
36
35
34
33
32
31
30
29
28
27
26
21
19
18
17
24
+
+
V
+
+
U
CC
C2
1 F
C4
3.3 F
C10
1 F
C13
3.3 F
14
2
V
V
CC
EE
100pF
C6
3
5
4
100pF
C7
8
6
7
100pF
C8
11
9
10
12
16
13
15
18
17
19
20 22 23 24 1
DCE/
DTE
LTC1344
M2
M1
LATCH
M0
21
14
24
11
15
12
16
25
19
20
23
10
22
13
18
17
21
7
1
4
8
6
5
2
9
3
LATCH
SGND (102)
SHIELD (101)
DCD A (109)
DCD B
DSR A (107)
DSR B
CTS A (106)
CTS B
LL A (141)
TXD A (103)
TXD B
SCTE A (113)
SCTE B
TXC A (114)
TXC B
RXC A (115)
RXC B
RXD A (104)
RXD B
TM A (142)
RL A (140)
RTS A (105)
RTS B
DTR A (108)
DTR B
DB-25 MALE
CONNECTOR
LTC1343
1343 F31
19