ACT4454 Aeroflex Circuit Technology, ACT4454 Datasheet

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ACT4454

Manufacturer Part Number
ACT4454
Description
Act 4454 / 4460 Single Supply Transceivers For Mil-std-1553a/b & MacaIR A3818, A4905, A5232 & A5690
Manufacturer
Aeroflex Circuit Technology
Datasheet
Features
• Single 5 Volt Supply Operation
• Low Power Dissipation
• Small Size & Light Weight
• Dual Transceivers Save Space & Cost
• Outstanding MIL-STD-1553A/B and MacAir A3818, A4905,
• Processed and Screened to Mil-STD-883 Specs
• Radiation Hard Dielectric Isolation Monolithic Construction
• Superior High Frequency Line Transient and Input Ripple
• Input and Output TTL Compatible Design
• DESC SMD# 5962-92061
RX DATA IN
RX DATA IN
A5232, A5690 Performance
for Severe Space Environments
Rejection
TX DATA IN
TX DATA IN
TX INHIBIT
STROBE
+5V RTN
eroflex Circuit T
+5 V
ACT 4454 / 4460 Single Supply Transceivers
Block Diagram (without Transformer)
AMPLIFIER
DRIVER
INPUT
MacAir A3818, A4905, A5232 & A5690
echnology
ACT 4454FP
Actual Size
Case Style
for MIL-STD-1553A/B &
REFERENCE
ACTIVE
FILTER
ACTIVE
FILTER
– Data Bus Modules For The Future © SCD4454 REV A 3/17/99
OUTPUT
STAGE
COMP.
COMP.
TX DATA OUT
TX DATA OUT
RX DATA OUT
RX DATA OUT
ACT4454 / 4460 series are next
generation
designs
compliance with MIL-STD-1553A/B
and MacAir A3818, A5690, A5232 &
A4905 requirements in the smallest
packages
consumption and single power supply
operation.
performs
function of inputting and outputting
data through a transformer to the
MIL-STD-1553 data bus.
considered a "Universal" Transceiver
in
MIL-STD-1553A & B, Macair A-3818,
A-4905, A-5232 and A-5690.
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.
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:
bi-phase TTL data at the input and
General Description
The Aeroflex Circuit Technology
The
The ACT4454 / 4460 series can be
Design
Each
The Transmitter section accepts
that
ACT4454
channel
it
CIRCUIT TECHNOLOGY
which
of
the
monolithic
www.aeroflex.com
with
distortion.
is
these
front-end
compatible
/
of
provides
low
4460
transceivers
transceiver
the
Efficient
analog
power
series
dual
with
full

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ACT4454 Summary of contents

Page 1

... The ACT4454 / 4460 series performs the front-end analog function of inputting and outputting data through a transformer to the MIL-STD-1553 data bus. The ACT4454 / 4460 series can be considered a "Universal" Transceiver in that it is compatible MIL-STD-1553A & B, Macair A-3818, A-4905, A-5232 and A-5690. Design of these transceivers reflects particular attention to active filter performance ...

Page 2

... Figure 2 — Receiver Logic Waveforms Idealized LINE TO LINE INPUT STROBE DATA OUT DATA OUT * See Figure 7 For Actual Waveforms Aeroflex Circuit Technology takes priority over the condition of the data inputs and disables the transmitter. (See Transmitter Logic Waveform, Figure 1.) The ...

Page 3

... Delay from 50% point of TX DATA or TX DATA input to zero crossing of differential signal Note 1. Power on or off, measured from 75KHz to 1MHz at point A-A' and transformer self impedance of 3K minimum Aeroflex Circuit Technology Absolute Maximum Ratings Condition Symbol ...

Page 4

... Volts ±0.1 V, bypassed by 2.2 µF (Tantalum recommended) Capacitor minimum. All measurements & cc specifications apply over the temperature range of -55°C to +125°C (case temperature) unless otherwise specified. Note 3: When measured at point A-A’ with ± 10 Volt peak, line to ground 2MHz Note 4: Typical power is measured with V Aeroflex Circuit Technology Condition Symbol TXFMR 2.5:1 V IDR ...

Page 5

... N1:N2 TX DATA OUT DATA OUT RX DATA IN RX DATA IN Transformer turns ratios: N1:N2 = 1:2.5 N1:N3 = 1:1.77 Use Technitrol 1553-45 or equivalent Aeroflex Circuit Technology F orm Figure 4 – Transmitter (TX) Output Offset * volts 0 Volts * Offset measured at point A-A' in Figure 5 Figure 6 – Power Dissipation vs. Duty Cycle (Total hybrid with one channel transmitting ...

Page 6

... – DATA BUS OUT Point A–A' See Figure DATA OUT DATA OUT 6139A Aeroflex Circuit Technology 6 SCD4454 REV A 3/17/99 Plainview NY (516) 694-6700 ...

Page 7

... Aeroflex Circuit Technology Figure 8 – Pin Numbers & Functions ACT4454/4460 Function TX DATA OUT/RX DATA IN TX DATA OUT/RX DATA IN GROUND 1 RX DATA OUT STROBE RX DATA OUT TX DATA OUT/RX DATA IN TX DATA OUT/RX DATA IN GROUND 1 RX DATA OUT ...

Page 8

... Aeroflex Circuit Technology 35 South Service Road Plainview New York 11803 Specifications subject to change without notice. Aeroflex Circuit Technology Receiver Data level 2/ Normally High Rx Normally Low Rx Model ACT4454/4460 Flat Package 0.596 0.410 MAX PIN 1 MIN 0.018 MAX 0.010 0.095 MAX Notes 1 ...

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