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參數資料
| 型號： | LTC1518 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 52Mbps Precision Delay RS485 Quad Line Receivers |
| 中文描述： | 52Mbps的精密延時485四線接收器 |
| 文件頁數： | 1/12頁 |
| 文件大?。?/td> | 170K |
| 代理商： | LTC1518 |
1
LTC1518/LTC1519
52Mbps Precision Delay
RS485 Quad Line Receivers
DESCRIPTIO
N
U
The LTC
1518/LTC1519 are high speed, precision delay
differential quad bus/line receivers that can operate at data
rates as high as 52Mbps. They are pin compatible with the
LTC488/LTC489 RS485 line receivers and operate over the
entire –7V to 12V common mode range. A unique architec-
ture provides very stable propagation delays and low skew
over wide input common mode, input overdrive and ambi-
ent temperature ranges. Propagation delay is 18.5ns
±
3.5ns. Typical t
PLH
/t
PHL
and channel-to-channel skew is
500ps.
Each receiver translates differential input levels (
V
ID
≥
300mV) into valid CMOS and TTL output levels. Its high
input resistance (
≥
22k) allows many receivers to be con-
nected to the same driver. The receiver outputs go into a
high impedance state when disabled.
The receivers have a fail-safe feature that guarantees a high
output state when the inputs are shorted or left floating.
Other protection features include thermal shutdown and a
controlled maximum short-circuit current (50mA Max).
Input resistance remains
≥
22k when the device is
unpowered or disabled, thus allowing hot swapping with-
out loading the data lines.
The LTC1518/LTC1519 operate from a single 5V supply
and draw 12mA of supply current.
100
A 1
4
EN
EN
RO
1518/19 F08
1/4 LTC1518
LTC1685
LTC1685
12
3
2 B
7
6
3
2
DE
DI
RO
4
1
100
7
6
3
DE
2
DI
RO
4
1
RE
RE
I
Precision Propagation Delay: 18.5ns
±
3.5ns Over
Temperature
I
High Data Rate: 52Mbps
I
Low t
PLH
/t
PHL
Skew: 500ps Typ
I
Low Channel-to-Channel Skew: 500ps Typ
I
–7V to 12V RS485 Input Common Mode Range
I
Input Resistance
≥
22k, Even When Unpowered
I
Guaranteed Fail-Safe Operation over the Entire
Common Mode Range
I
Hot Swap
TM
Capable
I
High Common Mode Rejection to 26MHz
I
Short-Circuit Protection: 10mA Typ Output Current
for an Indefinite Short
I
Three-State Output Capability
I
Will Not Oscillate with Slow Moving Input Signals
I
Single 5V Supply
I
Pin Compatible with LTC488, LTC489
FEATURES
APPLICATIO
S
U
I
High Speed RS485/RS422 Receivers
I
STS-1/OC-1 Data Receivers
I
PECL Line Receivers
I
Level Translators
I
Fast-20/Fast-40 SCSI Receiver
Propagation Delay Guaranteed to Fall
Within Shaded Area (
±
3.5ns)
1518/19 TA02
V
IN
=
3V/DIV
V
=
5V/DIV
–5
5
15
TIME (ns)
25
35
0
10
20
30
40
45
RECEIVER
INPUT
V
ID
= 1.5V
RECEIVER
OUTPUT
V
DD
= 5V
52Mbps Data Communication over Twisted Pair
TYPICAL APPLICATIO
N
U
, LTC and LT are registered trademarks of Linear Technology Corporation.
Hot Swap is a trademark of Linear Technology Corporation.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LTC1518CS | 功能描述:IC LINE RCVR RS485 QUAD 16-SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 標準包裝:27 系列:- 類型:收發(fā)器 驅動器/接收器數: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 |
| LTC1518CS#PBF | 功能描述:IC LINE RCVR RS485 QUAD 16-SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 產品培訓模塊:RS-232 & USB Transceiver 標準包裝:2,000 系列:- 類型:收發(fā)器 驅動器/接收器數: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 |
| LTC1518CS#PBF | 制造商:Linear Technology 功能描述:LINE RECEIVERS, 52MBPS, 5V, SOIC-16 |
| LTC1518CS#TR | 功能描述:IC LINE RCVR RS485 QUAD 16SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 標準包裝:27 系列:- 類型:收發(fā)器 驅動器/接收器數: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 |
| LTC1518CS#TRPBF | 功能描述:IC LINE RCVR RS485 QUAD 16-SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 標準包裝:27 系列:- 類型:收發(fā)器 驅動器/接收器數: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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