LTC1334 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC1334' PDF : 16 Pages View PDF
LTC1334
APPLICATI S I FOR ATIO
A typical RS422 connection (Figure 15) allows one driver
and ten receivers on a twisted pair of wires terminated with
a 100Ω resistor at one end.
A typical twisted-pair line repeater is shown in Figure 16.
As data transmission rate drops with increased cable
length, repeaters can be inserted to improve transmission
rate or to transmit beyond the RS422 4000-foot limit.
The LTC1334 can be used to translate RS232 to RS422
interface levels or vice versa as shown in Figure 17. One
port is configured as an RS232 transceiver and the other
as an RS485 transceiver.
Using two LTC1334s as level translators, the RS232/
EIA562 interface distance can be extended to 4000 feet
with twisted-pair wires (Figure 18).
AppleTalk®/LocalTalk® Applications
Two AppleTalk applications are shown in Figure 19 and 20
with the LTC1323 and the LTC1334.
AppleTalk and LocalTalk are registered trademarks of Apple Computer, Inc.
DR ENABLE
DR IN
5V
1/2 LTC1334
23
22
6
7
8
RX OUT 24
4
5
1/2 LTC1334
RX OUT
24
8 5V
54
100Ω
100Ω
1/2 LTC1334
13
17
RX OUT
12
8 5V
11
18 DR ENABLE
19
DR IN
10
LTC1334 • F15
Figure 15. Typical Connection for RS422 Interface
5V
RX IN
4
100Ω
5
5V
24 22
23 8
6
7
1/2 LTC1334
TX OUT
LTC1334 • F16
13
RX IN
RS232/EIA562
11
TX OUT
17 22 23 8
6
7
LTC1334
4
5
9 19 24
100Ω
TX OUT
RS422
RX IN
LTC1334 • F17
Figure 16. Typical Cable Repeater for RS422 Interface
5V
Figure 17. Typical RS232/EIA562 to RS422 Level Translator
13
RX IN
RS232/EIA562
11
DR OUT
17 22 23 8
6
7
LTC1334
4
5
9 19 24
RS422
100Ω
100Ω
24 19
4
11
DR OUT
5
LTC1334
RS232/EIA562
6
13
RX IN
7
8 23 22 17 9
LTC1334 • F18
5V
Figure 18. Typical Cable Extension for RS232/EIA562 Interface
13
Share Link: 
