SP26LV431 Datasheet, PDF (1/13 Pages) Sipex Corporation – High Speed, +3.3V Quad RS-422 Differential Line Driver

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Preliminary _SP26LV431
High Speed, +3.3V Quad RS-422
Differential Line Driver
■ Quad Differential Line Drivers
■ Compatible with the EIA standard for
RS-422 serial protocol
■ High-Z Output Control
■ At Least 60Mbps Transmission Rates
■ 11ns Typical Driver Propagation Delays
■ Less than 1ns Typical Output Skew
■ Single +3.3V Supply Operation
■ Common Driver Enable Control
■ Compatibility with the industry standard
26LV31
■ Ideal For Use with SP26LV432, Quad
Receivers
DI1 1
16 VCC
D01A
2
15
SP26LV431
DI4
D01B 3
14 D04A
ENABLE 4
13 D04B
D02B 5
12 ENABLE
D02A 6
11 D03B
DI2 7
10 D03A
GND 8
9 _DI3
DESCRIPTION
The SP26LV431 is a quad differential line driver that meets the specifications of the EIA
standard RS-422 serial protocol. The SP26LV431 features Sipex's BiCMOS process allowing
low power operational characteristics of CMOS technology while meeting all of the demands
of the RS-422 serial protocol over 60Mbps under load. The RS-422 protocol allows up to 10
receivers to be connected to a multipoint bus transmission line. The SP26LV431 features a
driver enable control common to all four drivers that places the output pins in a high impedance
state. Since the cabling can be as long as 4,000 feet, the RS-422 drivers of the SP26LV431
are equipped with a wide common-mode output voltage range to accommodate ground
potential differences.
ENABLE
LOW
ENABLE
HIGH
Input
Non-
Inverting
A Output
don't care high-Z
Inverting
B Output
high-Z
HIGH don't care
LOW
LOW
HIGH
don't care
LOW
HIGH
HIGH
LOW
ENABLE
ENABLE
TYPICAL APPLICATION CIRCUIT
VCC
INPUTS
DI4
DI3
DI2 DI1
DO4A DO4B DO3A DO3B DO2A DO2B DO1A DO1B
GND
OUTPUTS
Rev: A Date: 2/08/04
SP26LV431 High Speed, +3.3V Quad RS-422 Differential Line Driver
1
© Copyright 2004 Sipex Corporationn