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SP431DS/08

SP431 High Speed, +3.3V Quad RS-422 Differential Line Driver

© Copyright 1997 Sipex Corporation

High Speed, +3.3V Quad RS-422

Differential Line Driver

The SP431 is a quad differential line driver that meets the specifications of the EIA standard

RS-422 serial protocol. The SP431 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 SP431 features a driver

enable control common to all four drivers and a tri-state output. Since the cabling can be as

long as 4,000 feet, the RS-422 drivers of the SP431 are equipped with a wide common-mode

output voltage range to accomodate ground potential differences.

s Compatible with the EIA standard for

RS-422 serial protocol

s Quad Differential Line Drivers

s Tri-state Output Control

s At Least 60Mbps Transmission Rates

s 6.0ns Typical Driver Propagation Delays

s Less than 1ns Typical Output Skew

s Single +3.3V Supply Operation

s Common Driver Enable Control

s Compatibility with the industry standard

26LV31

DESCRIPTION

ENABLE

ENABLE

DI4

DI3

DI2

DI1

DO

4

A DO

4

B DO

3

A DO

3

B DO

2

A DO

2

B DO

1

A DO

1

B

GND

INPUTS

OUTPUTS

DI2

1

2

3

4

13

14

5

6

7

D03A

D01A

D01B

ENABLE

D02B

D02A

D03B

DI1

ENABLE

D04B

D04A

DI4

8

9

GND

DI3

10

12

11

15

16

SP431

SP431

SIGNAL PROCESSING EXCELLENCE