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參數(shù)資料
| 型號： | LTC488C |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Quad RS485 Line Receiver |
| 中文描述： | 485四線接收器 |
| 文件頁數(shù)： | 7/12頁 |
| 文件大?。?/td> | 228K |
| 代理商： | LTC488C |
7
LTC488/LTC489
U
S
A
O
PPLICATI
U
U
Figure 5. Typical Connection
120
120
3
RX
2
1
488/9 F05
DX
1
3
SHIELD
RX
EN
DX
1/4 LTC486
12
SHIELD
4
12
3
2
DX
DX
1/4 LTC486
1
EN
1/4 LTC488 OR
1/4 LTC489
RX
3
1
2
4
RX
1/4 LTC488 OR
1/4 LTC489
EN
EN
FREQUENCY (MHz)
0.1
0.1
L
1
10
1
10
100
488/9 F06
Figure 7. Cable Length vs Data Rate
DATA RATE (bps)
10k
10
C
100
1k
10k
100k
1M
10M
488/9 F07
2.5M
Figure 6. Attenuation vs Frequency for Belden 9841
When using low loss cables, Figure 7 can be used as a
guideline for choosing the maximum line length for a given
data rate. With lower quality PVC cables, the dielectric loss
factor can be 1000 times worse. PVC twisted-pairs have
terrible losses at high data rates (> 100kbps), and greatly
reduce the maximum cable length. At low data rates
however, they are acceptable and much more economical.
Cable Termination
The proper termination of the cable is very important. If the
cable is not terminated with its characteristic impedance,
distorted waveforms will result. In severe cases, distorted
(false) data and nulls will occur. A quick look at the output
of the driver will tell how well the cable is terminated. It is
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC488CN | Quad RS485 Line Receiver |
| LTC488CS | Quad RS485 Line Receiver |
| LTC488I | Quad RS485 Line Receiver |
| LTC488IN | Quad RS485 Line Receiver |
| LTC488IS | Quad RS485 Line Receiver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC488CN | 功能描述:IC LINE RCVR RS485 QUAD 16-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(biāo)準(zhǔn)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 |
| LTC488CN#PBF | 功能描述:IC LINE RCVR RS485 QUAD 16-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(biāo)準(zhǔn)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 |
| LTC488CNPBF | 制造商:Linear Technology 功能描述:LTC488CNPBF |
| LTC488CS | 制造商:Linear Technology 功能描述:Quad RS485 Line Receiver |
| LTC488CSW | 功能描述:IC LINE RCVR RS485 QUAD 16-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(biāo)準(zhǔn)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 |
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