SP432 Datasheet, PDF (1/14 Pages) Sipex Corporation – High Speed, Low Power Quad RS-422 Differential Line Receiver

SIGNAL PROCESSING EXCELLENCE
SP432
High Speed, Low Power Quad RS-422
Differential Line Receiver
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
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.
RI1B 1
RI1A 2
R01 3
ENABLE 4
R02 5
RI2A 6
RI2B ⁷
GND 8
SP432
16 VCC
15 RI4B
14 RI4A
13 R04
12 ENABLE
11 R03
10 RI3A
9 _RI3B
VCC
INPUTS
RI4A RI4B RI3A RI3B RI2A RI2B RI1A RI1B
ENABLE
ENABLE
R04 R03 R02 R01
GND
OUTPUTS
SP432DS/10
SP432 High Speed, Low Power Quad Differential Line Receiver
1
© Copyright 1997 Sipex Corporation