ACT4423 Aeroflex Circuit Technology, ACT4423 Datasheet

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ACT4423

Manufacturer Part Number
ACT4423
Description
Act4423 Dual Transceiver For Mil-std-1553/1760
Manufacturer
Aeroflex Circuit Technology
Datasheet
Features
• +5 / +12 Volt Power Supply Operation
• Eliminates Negative Power Supply
• Low Power Dissipation
• Small Size & Light Weight
• Dual Transceivers Saves Space & Cost
• Outstanding MIL-STD-1553 performance
• Radiation Hard Dielectric Isolation Monolithic
• Superior High Frequency Line Transient and
• 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) Pending
RX STROBE IN
TX INHIBIT IN
Construction for Severe Environments
Input Ripple Rejection
TX DATA IN
TX DATA IN
RX DATA IN
RX DATA IN
+12V (V
eroflex Circuit T
+5V (V
GND1
GND2
GND3
CASE
CC
L
)
)
Block Diagram (Without Transformer)
ACT4423 DUAL TRANSCEIVER
AMPLIFIER
DRIVER
INPUT
echnology
FOR MIL-STD-1553/1760
REFERENCE
ACTIVE
FILTER
ACTIVE
FILTER
– Data Bus Modules For The Future © SCD4423 REV B 6/3/99
OUTPUT
STAGE
COMP.
COMP.
TX DATA OUT
TX DATA OUT
RX DATA OUT
RX DATA OUT
ACT4423 is a next generation
monolithic
which provides full compliance to
MIL-STD-1553A/B
requirements in a small package
with low power consumption.
front-end
inputting
through
MIL-STD-1553 data bus.
particular attention to active filter
performance. This results in low bit
and word error rate with superior
waveform purity and minimal zero
crossover
transmitter electrical and thermal
design provides low internal power
dissipation and heat rise at high as
well as low duty cycles.
transceiver is completely separate
from
independent. This includes power
leads as well as signal lines. Hence,
each channel may be connected to
a
interaction.
Transmitter:
bi-phase TTL data at the input and
when coupled to the data bus with a
1:1 ratio transformer, isolated on
the data bus side with two 52.5
Ohm fault isolation resistors, and
loaded
terminations, the data bus signal is
General Description
The Aeroflex Circuit Technology
The ACT4423 series performs the
Design of this transceiver reflects
Each
The Transmitter section accepts
different
CIRCUIT TECHNOLOGY
the
www.aeroflex.com
channel
a
by
and
analog
distortion.
transceiver
transformer
data
other
two
outputting
of
bus
function
and
and
70
the
with
Efficient
to
design
1760
Ohm
data
dual
fully
the
no
of

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ACT4423 Summary of contents

Page 1

... The Aeroflex Circuit Technology ACT4423 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 ACT4423 series performs the front-end analog function inputting and outputting through a transformer to MIL-STD-1553 data bus. ...

Page 2

... LINE TO LINE OUTPUT Note: DATA and DATA inputs must be complementary waveforms or 50% duty cycle average, with no delays between them, and must be in the same state during off times (both high or low). Figure 2 — Receiver Logic Waveforms Idealized (ACT4423) LINE TO LINE INPUT STROBE ...

Page 3

... See Figure 5 Delay from 50% point of TX DATA or TX DATA input to zero crossing of differential signal. See Fig 5 Aeroflex Circuit Technology Absolute Maximum Ratings (Note: Normal operation conditions require one Condition Symbol ...

Page 4

... Capacitor minimum. All measurements & specifications apply over the temperature range of -55°C to +125°C (case temperature) unless otherwise specified. Note 3: When measured as shown per Figure 5 with ± 10 Volt peak, line to ground 2MHz Note 4: Typical power is measured with V Aeroflex Circuit Technology Condition Symbol TXFMR ...

Page 5

... Configurations and Ordering Information ACT Model # / Ordering Part # ACT4423-D ACT4423-DI ACT4423-DF ACT4423-DFI Specifications subject to change without notice. Aeroflex Circuit Technology Figure 5 – Typical 1553 Bus Connections Magnified View ACT4423 * TX DATA OUT OUTPUT OFFSET * OUTPUT OFFSET TX DATA OUT RX DATA IN RX DATA IN ACT4423 TX DATA OUT 2 ...

Page 6

... Aeroflex Circuit Technology Figure 6 – Lead Numbers & Functions ACT4423 Pin Function Channel # 1 TX DATA OUT DATA OUT A 3 GROUND DATA OUT A 6 STROBE A 7 GROUND DATA OUT A 9 CASE 10 TX DATA OUT DATA OUT ...

Page 7

... .097 MAX Aeroflex Circuit Technology 35 South Service Road Plainview New York 11830 www.aeroflex.com Aeroflex Circuit Technology Model ACT4423 Dual In Line 1.90 MAX 1. 0.78 18 Pin 1 & ESD Designator 0.24 MIN 0.018 DIA. ±0.002 Model ACT4423 Flat Package ...

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