DS90LV048A datasheet(1/11 Pages) NSC

Part #	DS90LV048A

Description	3V LVDS Quad CMOS Differential Line Receiver

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Manufacturer	NSC [National Semiconductor (TI)]

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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 out-

put levels. The receiver supports a TRI-STATE® function that

may be used to multiplex outputs. The receiver also supports

open, shorted and terminated (100

Ω) input fail-safe. The re-

ceiver output will be HIGH for all fail-safe conditions. 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 re-

ceivers. 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 interface

applications.

Features

n >400 Mbps (200 MHz) switching rates

n Flow-through pinout simplifies PCB layout

n 150 ps channel-to-channel skew (typical)

n 100 ps differential skew (typical)

n 2.7 ns maximum propagation delay

n 3.3V power supply design

n High impedance LVDS inputs on power down

n Low Power design (40mW 3.3V static)

n Interoperable with existing 5V LVDS drivers

n Accepts small swing (350 mV typical) differential signal

levels

n Supports open, short and terminated input fail-safe

n Conforms to ANSI/TIA/EIA-644 Standard

n Industrial temperature operating range (-40˚C to +85˚C)

n Available in SOIC and TSSOP package

Connection Diagram

Functional Diagram

ENABLES

INPUTS

OUTPUT

EN

EN*

R

IN+ −RIN−

R

OUT

H

L or Open

V

ID ≥ 0.1V

H

V

ID ≤ −0.1V

L

Full Fail-safe

OPEN/SHORT

or Terminated

H

All other combinations of ENABLE inputs

X

Z

TRI-STATE® is a registered trademark of National Semiconductor Corporation.

Dual-in-Line

DS100888-1

Order Number DS90LV048ATM, DS90LV048ATMTC

See NS Package Number M16A, MTC16

DS100888-2

July 1999

DS100888

www.national.com

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