ACT4458 Aeroflex Circuit Technology, ACT4458 Datasheet

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ACT4458

Manufacturer Part Number
ACT4458
Description
Act 4458 / 4464 Single Supply Transceivers For Mil-std-1553/1760
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-1553 performance
• 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
for Severe Environments
Rejection
TX DATA IN
TX DATA IN
TX INHIBIT
STROBE
+5V RTN
eroflex Circuit T
+5 V
SINGLE SUPPLY TRANSCEIVERS
Block Diagram (without Transformer)
AMPLIFIER
DRIVER
INPUT
echnology
ACT 4458FP
Case Style
Actual Size
REFERENCE
ACTIVE
FILTER
ACTIVE
FILTER
ACT 4458 / 4464
– Data Bus Modules For The Future © SCD4458 REV A 1/29/98
FOR MIL-STD-1553/1760
OUTPUT
STAGE
COMP.
COMP.
TX DATA OUT
TX DATA OUT
RX DATA OUT
RX DATA OUT
ACT4458 / 4464 series are next
generation
designs
compliance with MIL-STD-1553A/B
and
smallest packages with low power
consumption and single power supply
operation.
performs
function of inputting and outputting
data through a transformer to the
MIL-STD-1553 data bus.
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
when coupled to the data bus with a
1:2.5 ratio transformer, isolated on
the data bus side with two 52.5 Ohm
fault isolation resistors, and loaded by
General Description:
The Aeroflex Circuit Technology
The
Design
Each
The Transmitter section accepts
1760
www.aeroflex.com/act1.htm
ACT4458
CIRCUIT TECHNOLOGY
channel
which
of
the
monolithic
requirements
distortion.
these
front-end
/
of
provides
4464
transceivers
transceiver
the
Efficient
in
analog
series
dual
the
full

Related parts for ACT4458

ACT4458 Summary of contents

Page 1

... COMP. RX DATA OUT ACTIVE COMP. FILTER – Data Bus Modules For The Future © SCD4458 REV A 1/29/98 CIRCUIT TECHNOLOGY www.aeroflex.com/act1.htm General Description: The Aeroflex Circuit Technology ACT4458 / 4464 series are next generation monolithic transceiver designs which provides compliance with MIL-STD-1553A/B and 1760 ...

Page 2

... Figure 2 — Receiver Logic Waveforms Idealized LINE TO LINE INPUT STROBE DATA OUT DATA OUT * See Figure 8 For Actual Waveforms Aeroflex Circuit Technology for an indefinite period with the bus (point A-A') short circuited at 100% duty cycle. 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 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 (Note: Normal operation conditions require one transceiver on and the other off.) ...

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 V IDR 2 ...

Page 5

... 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 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 Oscilloscope used is a TEK TDS540 with Probe 6139A. Aeroflex Circuit Technology 6 SCD4458 REV A 1/29/98 Plainview NY (516) 694-6700 ...

Page 7

... Aeroflex Circuit Technology Figure 7 – Pin Numbers & Functions ACT4458/4464 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

... MAX ± 0.003 Aeroflex Circuit Technology 35 South Service Road Plainview New York 11830 Specifications subject to change without notice. Aeroflex Circuit Technology Receiver Data level Normally Low Rx Normally High Rx Model ACT4458/4464 Flat Package 0.596 0.410 MAX PIN 1 MIN 0.018 MAX 0.010 0.095 ...

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