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ACT4487 Datasheet(PDF) 1 Page - Aeroflex Circuit Technology

Part No. ACT4487
Description  ACT 4487 DUAL TRANSCEIVER FOR MIL-STD-1553/1760
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Manufacturer  AEROFLEX [Aeroflex Circuit Technology]
Direct Link  http://www.aeroflex.com
Logo AEROFLEX - Aeroflex Circuit Technology

ACT4487 Datasheet(HTML) 1 Page - Aeroflex Circuit Technology

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CIRCUIT TECHNOLOGY
www.aeroflex.com/act1.htm
eroflex Circuit T
echnology – Data Bus Modules For The Future © SCD4487D REV B 3/10/98
General Description
The
Aeroflex
Circuit
Technology ACT 4487 is a next
generation monolithic transceiver
design
which
provides
full
compliance to MIL-STD-1553A/B
and 1760 requirements in a small
package
with
low
power
consumption.
The ACT 4487 series performs
the front-end analog function of
inputting
and
outputting
data
through
a
transformer
to
the
MIL-STD-1553 data bus.
Design of this transceiver reflects
particular attention to active filter
performance. This results in low bit
and word error rate with superior
waveform purity and minimal zero
crossover
distortion.
Efficient
transmitter electrical and thermal
design provides low internal power
dissipation and heat rise at high as
well as low duty cycles.
Each
channel
of
the
dual
transceiver is completely separate
from
the
other
and
fully
independent. This includes power
leads
as
well
as
signal
lines.
Hence,
each
channel
may
be
connected to a different data bus
with no interaction.
Transmitter:
The Transmitter section accepts
bi-phase TTL data at the input and
when coupled to the data bus with a
1.4:1 ratio transformer, isolated on
the data bus side with two 52.5
Ohm fault isolation resistors, and
loaded
by
two
70
Ohm
Block Diagram (Without Transformer)
ACTIVE
OUTPUT
STAGE
COMP.
COMP.
REFERENCE
ACTIVE
FILTER
INPUT
AMPLIFIER
DRIVER
TX DATA IN
TX DATA IN
TX INHIBIT IN
-15V (VEE)
RX DATA IN
RX DATA IN
RX STROBE IN
TX DATA OUT
TX DATA OUT
RX DATA OUT
RX DATA OUT
FILTER
GND3
+5V (VL)
GND1
+15V (VCC)
GND2
CASE
Features
• +5 / ±15 Volt Supply Operation
• Low Power Dissipation
• Small Size & Light Weight
• Dual Transceivers Saves Space & Cost
• Outstanding MIL-STD-1553 performance
• Radiation Hard Dielectric Isolation Monolithic
Construction for Severe Environments
• Superior High Frequency Line Transient and
Input Ripple Rejection
• Input and Output TTL Compatible Design
• Processed and Screened to MIL-STD-883 Specs
• MIL-PRF-38534 Compliant Devices Available
• DESC SMD (Standard Military Drawing)
ACT 4487 DUAL TRANSCEIVER
FOR MIL-STD-1553/1760


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