ACT4419 Aeroflex Circuit Technology, ACT4419 Datasheet

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ACT4419

Manufacturer Part Number
ACT4419
Description
Single Supply Variable Amplitude Transceivers For Mil-std-1553
Manufacturer
Aeroflex Circuit Technology
Datasheet
Features
• First fully monolithic 5V only Variable Amplitude
• Lowest standby power
• Transceiver meets military data bus requirements,
• Low power dissipation at full output power
• Single +5V power supply
• Current source output
• Monolithic construction using dielectrically isolated(D.I.)
• Processed and screened to MIL-STD-883 specs
• Radiation Hard to 2.5 MRADS Total Dose
• DESC SMD pending
• Either 5V or 10V DC control line (Factory Set)
Single Supply Variable Amplitude Transceivers
TX DATA IN
TX DATA IN
TX INHIBIT
Transceiver
MIL-STD-1553 and MIL-STD-1760
STROBE
GROUND
eroflex Circuit T
+5 V
ACT4419FP & ACT4419 Plug In Transceivers
DRIVER
INPUT
AMP
echnology
Block Diagram
REFERENCE
SHAPING
for MIL-STD-1553
ACTIVE
FILTER
– Data Bus Modules For The Future © SCD4419 REV B 10/21/99
ACT4419
Preliminary
OUTPUT
STAGE
COMP.
COMP.
TX/RX
TX/RX
RX DATA OUT
RX DATA OUT
The
model ACT4419 is a next generation
D.I.
provides variable amplitude in full
compliance with MIL-STD-1553/1760
data bus requirements with the lowest
standby power consumption available
and one power supply operation.
The model ACT4419 performs the
front-end analog function of inputting
and
transformer to a MIL-STD-1553/1760
data bus.
Design of these transceivers reflects
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.
factory preset 0 - 10 Vdc or 0 - 5 Vdc
control line at 1mA maximum input
current.
Transmitter
The
bi-phase TTL data at the input and
when coupled to the data bus with a
primary grounded center tap
1:2.5 transformer
data bus side with two 52.5 Ohm fault
isolation resistors, and loaded by two
70 Ohm terminations plus additional
receivers,
produced is 7.5Volts nominal P-P at
A-A’ (See Figure 5). When both DATA
and DATA inputs are held low or high,
the transmitter output becomes a
high impedance and is “removed”
from
General Description
Variable amplitude is adjusted with
monolithic
outputting
Transmitter
Aeroflex
the
CIRCUIT TECHNOLOGY
www.aeroflex.com
the
line.
distortion.
Circuit
data
transceiver
data
In
section
, isolated on the
addition,
bus
through
Technology
Efficient
accepts
signal
which
an
a

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ACT4419 Summary of contents

Page 1

... Data Bus Modules For The Future © SCD4419 REV B 10/21/99 CIRCUIT TECHNOLOGY www.aeroflex.com General Description The Aeroflex Circuit Technology model ACT4419 is a next generation D.I. monolithic transceiver which provides variable amplitude in full compliance with MIL-STD-1553/1760 data bus requirements with the lowest standby power consumption available and one power supply operation ...

Page 2

... DATA OUT DATA OUT NOTE Waveforms shown are for normally low devices. For normally high receiver output : level devices, the receiver outputs are swapped as shown by the dashed lines. Aeroflex Circuit Technology Receiver The Receiver section accepts bi-phase differential data at the input and produces two TTL signals at the output ...

Page 3

... Delay from 50% point of TX DATA or TX DATA input to zero crossing of differential signal Control Voltage Slope 0 – 5 Vdc measured A’ 0 – 10 Vdc measured A’ Aeroflex Circuit Technology Absolute Maximum Ratings Condition Symbol ILD ...

Page 4

... Notes: 1. Power ON/OFF, measured from 75KHz to 1MHz at Point A-A. See Figure volts ±0.1 V, for all measurements unless otherwise specified Specifications apply over the case temperature range of -55°C to +125°C unless otherwise specfied. 4. All typical values are measured at +25°C Aeroflex Circuit Technology Condition Symbol Min V IDR ...

Page 5

... CONTROL VOLTAGE Figure 5 – Typical Transformer Connection 70 1:2.5 TX DATA OUT P D.U.T P’ TX DATA OUT RX DATA IN RX DATA IN Transformer Use Technitrol 1553-45 or Equivalent Aeroflex Circuit Technology Figure 4 – Transmitter (TX) Output Offset 0 volts 7.5 6 4.5 3 1.5 Vdc Figure 6 – Power Dissipation vs. Duty Cycle ...

Page 6

... Dimensions shown are in inches 2. Pins are equally spaced at 0.10.0±0.002 tolerance, non-cumulative, each row. Configurations and Ordering Information Model No. DESC No. ACT4419 Pending ACT4419FP Pending Specifications subject to change without notice. Aeroflex Circuit Technology 35 South Service Road Plainview New York 11803 Aeroflex Circuit Technology Pin Connections 1 ...

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