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參數(shù)資料
| 型號： | LTC491C |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Differential Driver and Receiver Pair |
| 中文描述： | 差分驅(qū)動器和接收器配對 |
| 文件頁數(shù)： | 7/12頁 |
| 文件大?。?/td> | 236K |
| 代理商： | LTC491C |
7
LTC491
U
S
A
O
PPLICATI
U
U
Typical Application
A typical connection of the LTC491 is shown in Figure 9.
Two twisted pair wires connect up to 32 driver/receiver
pairs for full duplex data transmission. There are no
restrictions on where the chips are connected to the wires,
and it isn’t necessary to have the chips connected at the
ends. However, the wires must be terminated only at the
ends with a resistor equal to their characteristic imped-
ance, typically 120
. The input impedance of a receiver is
LTC491 TA10
120
120
LTC491
DRIVER
RECEIVER
LTC491
DRIVER
DX
RX
DX
RX
2
3
5
9
10
11
12
RECEIVER
9
10
11
12
5
2
3
120
4
4
120
RECEIVER
LTC491
DRIVER
9
10
11
12
5
4
3
2
DX
RX
Figure 9. Typical Connection
LTC491 TA11
120
LTC491
DRIVER
DX
RX
2
3
5
9
10
11
12
RECEIVER
DATA IN
DATA OUT
4
120
Figure 10. Line Repeater
typically 20k
to GND, or 0.6 unit RS-485 load, so in
practice 50 to 60 transceivers can be connected to the
same wires. The optional shields around the twisted pair
help reduce unwanted noise, and are connected to GND at
one end.
The LTC491 can also be used as a line repeater as shown
in Figure 10. If the cable length is longer than 4000 feet, the
LTC491 is inserted in the middle of the cable with the
receiver output connected back to the driver input.
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PDF描述 |
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| LTC491CN | Differential Driver and Receiver Pair |
| LTC491CS | Differential Driver and Receiver Pair |
| LTC491I | Differential Driver and Receiver Pair |
| LTC491IS | Differential Driver and Receiver Pair |
| LTC5505-1 | RF Power Detector with Buffered Output and >40dB Dynamic Range |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC491CN | 功能描述:IC TXRX RS485 LOW POWER 14-DIP RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標準包裝:27 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):3/3 規(guī)程:RS232，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC 包裝:管件 |
| LTC491CN#PBF | 功能描述:IC TXRX RS485 LOW POWER 14-DIP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 產(chǎn)品培訓(xùn)模塊:RS-232 & USB Transceiver 標準包裝:2,000 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):1/1 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:16-SSOP 包裝:帶卷 (TR) 其它名稱:296-19849-2 |
| LTC491CNPBF | 制造商:Linear Technology 功能描述:Differential driver & receiver,LTC491CN |
| LTC491CS | 功能描述:IC TXRX RS485 LOW POWER 14-SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標準包裝:27 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):3/3 規(guī)程:RS232，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC 包裝:管件 |
| LTC491CS#PBF | 功能描述:IC TXRX RS485 LOW POWER 14-SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 產(chǎn)品培訓(xùn)模塊:RS-232 & USB Transceiver 標準包裝:2,000 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):1/1 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:16-SSOP 包裝:帶卷 (TR) 其它名稱:296-19849-2 |
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