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參數(shù)資料
| 型號(hào)： | LTC1520CS |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | 50Mbps Precision Quad Line Receiver |
| 中文描述： | LINE RECEIVER, PDSO16 |
| 封裝： | 0.150 INCH, PLASTIC, SO-16 |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大小： | 214K |
| 代理商： | LTC1520CS |
1
LTC1520
50Mbps Precision Quad
Line Receiver
May 1996
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
Final Electrical Specifications
TYPICAL APPLICATIO
N
U
High Speed Backplane Receiver
DESCRIPTIO
N
U
The LTC
1520 is a high speed, precision differential line
receiver that can operate at data rates as high as 50Mbps.
A unique architecture provides very stable propagation
delays and low skew over a wide input common mode,
input overdrive and ambient temperature range. Propaga-
tion delay is 18ns
±
3ns, while typically t
PLH
/t
PHL
skew is
500ps and channel-to-channel skew is 400ps.
Each receiver translates differential input levels (V
ID
≥
100mV) into valid CMOS and TTL output levels. Its high
input resistance (
≥
18k) allows many receivers to be con-
nected to the same driver. The receiver outputs go into a
high impedance state when disabled.
Protection features include thermal shutdown and a con-
trolled maximum short-circuit current (50mA max) that
does not oscillate in and out of short-circuit mode. Input
resistance remains
≥
18k when the device is unpowered or
disabled, thus allowing the LTC1520 to be hot swapped into
a backplane without loading the data lines.
The LTC1520 operates from a single 5V supply and draws
12mA of supply current. The part is available in a 16-lead
narrow SO package.
I
Precision Propagation Delay: 18ns
±
3ns Over
Temperature
I
Data Rate: 50Mbps
I
Low t
PLH
/t
PHL
Skew: 500ps Typ
I
Low Channel-to-Channel Skew: 400ps Typ
I
Rail-to-Rail Input Common Mode Range
I
High Input Resistance:
≥
18k, Even When Unpowered
I
Hot Swap Capable
I
Can Withstand Input DC Levels of
±
10V
I
Short-Circuit Protected
I
Single 5V Supply
I
LVDS Compatible
I
Will Not Oscillate with Slow Input Signals
APPLICATIO
S
U
FEATURES
I
High Speed Backplane Interface
I
Line Collision Detector
I
PECL and LVDS Line Receivers
I
Level Translator
I
Ring Oscillator
I
Tapped Delay Line
, LTC and LT are registered trademarks of Linear Technology Corporation.
Propagation Delay Guaranteed to Fall
Within Shaded Area (
±
3ns)
–
+
–
+
–
+
–
+
LTC1520
LTC1520 TA01
3.3k
5V
3.3k
0.01
μ
F
LTC1520 TA02
V
=
1V/DIV
V
=
5V/DIV
–5
5
15
TIME (ns)
25
35
0
10
20
30
40
45
RECEIVER
INPUT
V
ID
= 500mV
RECEIVER
OUTPUT
V
DD
= 5V
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