SP431
SIGNAL PROCESSING EXCELLENCE
High Speed, +3.3V Quad RS-422
Differential Line Driver
s
Compatible with the EIA standard for
RS-422 serial protocol
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Quad Differential Line Drivers
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Tri-state Output Control
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At Least 60Mbps Transmission Rates
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6.0ns Typical Driver Propagation Delays
s
Less than 1ns Typical Output Skew
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Single +3.3V Supply Operation
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Common Driver Enable Control
s
Compatibility with the industry standard
26LV31
DESCRIPTION
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.
DI1
D01A
D01B
ENABLE
D02B
D02A
DI2
GND
1
2
3
4
5
6
7
8
16 V
CC
V
CC
DI4
INPUTS
DI3
DI2
DI1
SP431
15 DI4
14 D04A
13 D04B
12 ENABLE
11 D0 B
3
10 D0 A
3
9 DI
3
ENABLE
ENABLE
DO A DO B DO A DO B DO A DO B DO A DO B
3
4
3
2
2
1
1
4
GND
OUTPUTS
SP431DS/08
SP431 High Speed, +3.3V Quad RS-422 Differential Line Driver
漏 Copyright 1997 Sipex Corporation
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