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參數(shù)資料
| 型號： | LTC1689CS |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | 100Mbps RS485 Hot Swapable Quad Drivers |
| 中文描述： | QUAD LINE DRIVER, PDSO16 |
| 封裝： | 0.150 INCH, PLASTIC, SO-16 |
| 文件頁數(shù)： | 8/12頁 |
| 文件大?。?/td> | 160K |
| 代理商： | LTC1689CS |
8
LTC 1688/LTC 1689
Cable Termination
The recommended cable termination for use with the
LTC1688/LTC1689 is a single resistor across the two ends
of a transmission cable (see Figure 8). When PC traces are
used as the transmission line, its characteristic imped-
ance should be chosen close to 100
in order to better
match the specified timing characteristics of the LTC1688/
LTC1689. Category 5 unshielded twisted pair can be used
over short distances at the maximum data rates (100Mbps).
For point-to-point configurations (see Figure 9), a single
resistor across the cable at the receiver end is sufficient.
A single resistor termination lowers power consumption
and increases the differential output signal. See Enable
Pins section for cable terminations with a DC bias.
APPLICATIO
S I
FOR
ATIO
U
W
U
U
Enable Pins
For cable terminations with a DC bias (such as High
Voltage Differential SCSI, see Figure 10), the driver out-
puts must be disabled for at least 200ns after power-up.
This ensures that the driver outputs do not disturb the
cable upon power-up. It also ensures the correct output
start-up conditions. When there is an output short fault
condition and the cable has a DC biased termination, such
as Figure 10, the driver outputs must be disabled for at
least 200ns after the short has been removed. Recall that
for transmission lines that have the recommended RS485
single resistor termination (Figures 8 and 9), the LTC1688/
LTC1689 will come out of a short-circuit fault condition
automatically without having to disable the outputs.
1688/89 F10
1/4 LTC1518
150
330
DE
DI
330
1/4 LTC1688
TERM POWER
150
330
330
TERM POWER
1/4 LTC1518
Figure 10. DC-Biased Termination
(Recommended for SCSI Applications Only)
Figure 8. Multipoint Transmission
Figure 9. Point-to-Point Transmission
1688/89 F08
1/4 LTC1518
1/4 LTC1519
100
100
1/4 LTC1688
1688/89 F09
1/4 LTC1518
100
1/4 LTC1689
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PDF描述 |
|---|---|
| LTC1688 | 100Mbps RS485 Hot Swapable Quad Drivers(100Mbps RS485熱交換四路驅(qū)動器) |
| LTC1689 | 100Mbps RS485 Hot Swapable Quad Drivers(100Mbps RS485熱交換四路驅(qū)動器) |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1689CS#PBF | 功能描述:IC DVR 100MBPS RS485 QUAD 16SOIC 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） 供應商設備封裝:16-SSOP 包裝:帶卷 (TR) 其它名稱:296-19849-2 |
| LTC1689CS#PBF | 制造商:Linear Technology 功能描述:DIFFERENTIAL LINE DRIVER, 100MBPS, SOIC- |
| LTC1689CS#TR | 功能描述:IC DVR 100MBPS QUAD RS485 16SOIC 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） 供應商設備封裝:28-SOIC 包裝:管件 |
| LTC1689CS#TRPBF | 功能描述:IC DVR 100MBPS RS485 QUAD 16SOIC RoHS:是 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） 供應商設備封裝:28-SOIC 包裝:管件 |
| LTC1689IS | 功能描述:IC DVR 100MBPS RS485 QUAD 16SOIC 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） 供應商設備封裝:28-SOIC 包裝:管件 |
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