LTC1546 Linear Technology, LTC1546 Datasheet - Page 18

• Manufacturer Part Number: LTC1546
• Description: Software-Selectable Multiprotocol Transceiver with Termination
• Manufacturer: Linear Technology

LTC1546
18
TYPICAL APPLICATIO S
DCE/DTE
M0
M1
M2
Figure 32. Controller-Selectable Multiprotocol DTE/DCE Port with RL, LL, TM and DB-25 Connector
DTE_RXC/DCE_SCTE
DTE_SCTE/DCE_RXC
DTE_DCD/DCE_DCD
DTE_DTR/DCE_DSR
DTE_DSR/DCE_DTR
DTE_TXD/DCE_RXD
DTE_RXD/DCE_TXD
DTE_RTS/DCE_CTS
DTE_CTS/DCE_RTS
DTE_TXC/DCE_TXC
DTE_TM/DCE_RL
DTE_RL/DCE_TM
DTE_LL/DCE_RI
DTE_RI/DCE_LL
C10
1 F
U
V
5V
CC
C3
1 F
V
5V
CC
1 F
C9
1 F
C1
C5
1 F
1,19
2,20
10
17
18
10
11
12
13
14
11
12
13
14
3
1
2
4
5
6
7
8
9
3
4
5
6
7
8
9
V
V
M0
M1
M2
DCE/DTE
M0
M1
M2
DCE/DTE
CC
DD
D1
D2
D3
CHARGE
LTC1545
LTC1546
D1
D2
D3
D4
D5
PUMP
R1
R2
R3
R1
R2
R3
R4
D4ENB
R4EN
R5
T
T
T
T
T
GND
V
EE
33
32
31
30
29
28
27
26
25
24
23
22
21
15
16
28
27
26
25
24
23
22
21
20
19
18
17
16
15
36
35
34
+
NC
C2
1 F
C4
3.3 F
C11
1 F
*OPTIONAL
12
14
24
11
15
17
16
19
20
10
22
13
23
18
25
21
2
9
7
1
4
8
6
5
3
*
DSR A
DSR B
TXD A
TXD B
SCTE A
SCTE B
RXC A
RXC B
RXD A
RXD B
SG
SHIELD
RTS A
RTS B
DTR A
DTR B
DCD A
DCD B
CTS A
CTS B
LL
RI
TM
RL
DTE
TXC A
TXC B
CONNECTOR
DB-25
DCE
RXD A
RXD B
RXC A
RXC B
TXC A
TXC B
SCTE A
SCTE B
TXD A
TXD B
CTS A
CTS B
DSR A
DSR B
DCD A
DCD B
DTR A
DTR B
RTS A
RTS B
RI
LL
RL
TM
1546 F32