参数资料
型号: LTC1334CNW
厂商: Linear Technology
文件页数: 5/16页
文件大小: 0K
描述: IC CMOS TXRX MULTIPROTOCOL 28DIP
标准包装: 14
类型: 收发器
驱动器/接收器数: 3/3
规程: RS232,RS485
电源电压: 4.75 V ~ 5.25 V
安装类型: 通孔
封装/外壳: 28-DIP(0.600",15.24mm)
供应商设备封装: 28-PDIP
包装: 管件
13
LTC1334
Figure 18. Typical Cable Extension for RS232/EIA562 Interface
U
S
A
O
PPLICATI
WU
U
I FOR ATIO
RS422
RS232/EIA562
LTC1334 F18
100
100
13
11
9
19
24
23
22
17
8
DR OUT
RX IN
5V
4
5
6
7
LTC1334
RS232/EIA562
22
11
13
17
5V
9
19
24
23
8
4
5
6
7
RX IN
DR OUT
LTC1334
RS422
RS232/EIA562
LTC1334 F17
100
13
11
9
19
24
23
22
17
8
TX OUT
RX IN
5V
4
5
6
7
LTC1334
Figure 17. Typical RS232/EIA562 to RS422 Level Translator
Figure 16. Typical Cable Repeater for RS422 Interface
1/2 LTC1334
TX OUT
RX IN
LTC1334 F16
100
4
5
6
8
23
22
24
7
5V
1/2 LTC1334
LTC1334 F15
100
22
23
8
24
8
17
18
19
5V
RX OUT
DR ENABLE
DR IN
5 4
8
5V
4
5
6
7
11
10
13
24
12
100
Figure 15. Typical Connection for RS422 Interface
A typical RS422 connection (Figure 15) allows one driver
and ten receivers on a twisted pair of wires terminated with
a 100
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.
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