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SP432DS/10

SP432 High Speed, Low Power Quad Differential Line Receiver

© Copyright 1997 Sipex Corporation

SP432

High Speed, Low Power Quad RS-422

Differential Line Receiver

The SP432 is a quad differential line receiver designed to meet the specifications of

RS-422. The SP432 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 50Mbps under load. The RS-422 protocol allows up to 10 receivers to be

connected to a multipoint bus transmission line. The SP432 features a receiver enable

control common to all four receivers and a tri-state output with 6mA source and sink

capability. Since the cabling can be as long as 4,000 feet, the RS-422 receivers of the SP432

are equipped with a wide (-7.0V to +7.0V) common-mode input voltage range to accomodate

ground potential differences.

s Compatible with the EIA standard for

RS-422 serial protocol

s Quad Differential Line Receivers

s Tri-state Output Control

s 8ns Typical Receiver Propagation Delays

s 60mV Typical Input Hysteresis

s Single +3.3V to +5V Supply Operation

s Common Receiver Enable Control

s Compatibility with the industry standard

26LV32 and 26C32

s -7.0V to +7.0V Common-Mode Input

Voltage Range

DESCRIPTION

RI

4

A RI

4

B

GND

R04

R02

R03

R01

INPUTS

OUTPUTS

ENABLE

ENABLE

RI

3

A RI

3

B

RI

2

A RI

2

B

RI

1

A RI

1

B

RI2B

1

2

3

4

13

14

5

6

7

RI3A

RI1A

R01

ENABLE

R02

RI2A

R03

RI1B

ENABLE

R04

RI4A

RI4B

8

9

GND

RI3B

10

12

11

15

16

SP432

SIGNAL PROCESSING EXCELLENCE