參數(shù)資料
型號(hào): LTC1335IS
廠商: LINEAR TECHNOLOGY CORP
元件分類: 通用總線功能
英文描述: RS232/EIA562/RS485 Transceivers
中文描述: LINE TRANSCEIVER, PDSO24
封裝: PLASTIC, SOL-24
文件頁數(shù): 16/20頁
文件大?。?/td> 454K
代理商: LTC1335IS
16
LTC1321/LTC1322/LTC1335
U
S
A
O
PPLICATI
TYPICAL
A typical EIA562/RS232 interface application is shown in
Figure 17 with LTC1322. A typical EIA562 interface appli-
cation with LTC1335 is shown in Figure 18.
A typical connection for RS485 transceiver is shown in
Figure 19. A twisted pair of wires connects up to 32 drivers
and receivers for half duplex multi-point data transmis-
sion. The wires must be terminated at both ends with
resistors equal to the wire’s characteristic impedance,
generally 120
. An optional shield around the twisted pair
helps to reduce unwanted noise and should be connected
to ground at one end.
1/2 LTC1322
1/2 LTC1322
1321/22/35 F17
17
16
15
14
7
DR IN
DR IN
RX OUT
RX OUT
OV
3
2
5
4
8
9
10
11
22
23
20
21
6
RX OUT
RX OUT
DR IN
DR IN
0V
EIA562/
RS232
INTERFACE
LINES
Figure 17. Typical Connection for EIA562/RS232 Interface
Figure 18. Typical Connection for EIA562 Interface
1/2 LTC1335
1/2 LTC1335
1321/22/35 F18
17
16
15
14
7
DR IN
DR IN
RX OUT
RX OUT
OV
3
2
5
4
8
9
10
11
22
23
20
21
6
RX OUT
RX OUT
DR IN
DR IN
0V
EIA562
INTERFACE
LINES
1
OE = 0V
1
OE = 0V
Figure 19. Typical Connection for RS485 Interface
5V
2
3
1/2 LTC1322/LTC1335
1/2 LTC1322/LTC1335
1/2 LTC1322/LTC1335
11
10
1321/22/35 F19
RX OUT
DR ENABLE
DR IN
5V
120
4
5
22
21
20
6
9
8
7
RX OUT
16
5V
DR ENABLE
5 4
3 2
20
DR IN
RX OUT
DR ENABLE
21
22 6
15
DR IN
17
120
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