DS90LV048A 3V LVDS Quad CMOS Differential Line Receiver
May 2001
DS90LV048A
3V LVDS Quad CMOS Differential Line Receiver
General Description
The DS90LV048A is a quad CMOS flow-through differential
line receiver designed for applications requiring ultra low
power dissipation and high data rates. The device is de-
signed to support data rates in excess of 400 Mbps (200
MHz) utilizing Low Voltage Differential Signaling (LVDS)
technology.
The DS90LV048A accepts low voltage (350 mV typical) dif-
ferential input signals and translates them to 3V CMOS
output levels. The receiver supports a TRI-STATE
®
function
that may be used to multiplex outputs. The receiver also
supports open, shorted and terminated (100Ω) input fail-
safe. The receiver output will be HIGH for all fail-safe condi-
tions. The DS90LV048A has a flow-through pinout for easy
PCB layout.
The EN and EN
*
inputs are ANDed together and control the
TRI-STATE outputs. The enables are common to all four
receivers. The DS90LV048A and companion LVDS line
driver (eg. DS90LV047A) provide a new alternative to high
power PECL/ECL devices for high speed point-to-point inter-
face applications.
Features
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400 Mbps (200 MHz) switching rates
Flow-through pinout simplifies PCB layout
150 ps channel-to-channel skew (typical)
100 ps differential skew (typical)
2.7 ns maximum propagation delay
3.3V power supply design
High impedance LVDS inputs on power down
Low Power design (40mW 3.3V static)
Interoperable with existing 5V LVDS drivers
Accepts small swing (350 mV typical) differential signal
levels
Supports open, short and terminated input fail-safe
0V to −100mV threshold region
Conforms to ANSI/TIA/EIA-644 Standard
Industrial temperature operating range (-40˚C to +85˚C)
Available in SOIC and TSSOP package
Connection Diagram
Dual-in-Line
Functional Diagram
10088801
Order Number DS90LV048ATM, DS90LV048ATMTC
See NS Package Number M16A, MTC16
10088802
Truth Table
ENABLES
EN
H
EN*
L or Open
INPUTS
R
IN+
− R
IN−
V
ID
≥
0V
V
ID
≤
−0.1V
Full Fail-safe
OPEN/SHORT
or Terminated
All other combinations of ENABLE inputs
TRI-STATE
®
is a registered trademark of National Semiconductor Corporation.
OUTPUT
R
OUT
H
L
H
X
Z
© 2001 National Semiconductor Corporation
DS100888
www.national.com
NSC [ NATIONAL SEMICONDUCTOR ]
