ACT4468D Aeroflex Circuit Technology, ACT4468D Datasheet

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ACT4468D

Manufacturer Part Number
ACT4468D
Description
Act4468d Dual Transceivers For Mil-std-1553
Manufacturer
Aeroflex Circuit Technology
Datasheet
Features
• World’s smallest and lowest standby power dual
• Dual transceiver meets military data bus
• Low power dissipation at full output power
• Single +5V power supply
• Current source output
• Monolithic construction using dielectrically
• Processed and screened to MIL-STD-883 specs
• DESC SMD# 5962–92061 Pending
TX DATA IN
TX DATA IN
TX INHIBIT
transceiver 0.3" x 1" packages
requirements, MIL-STD-1553 and MIL-STD-1760
isolated(D.I.)
STROBE
GROUND
eroflex Circuit T
+5 V
Block Diagram (without Transformer), 1/2 of unit shown
Dual Transceivers for MIL-STD-1553
DRIVER
INPUT
AMP
ACT4468D Dual Transceiver
echnology
REFERENCE
SHAPING
ACTIVE
FILTER
– Data Bus Modules For The Future © SCD4468D REV B 5/25/00
ACT4468D
OUTPUT
STAGE
COMP.
COMP.
TX/RX
TX/RX
RX DATA OUT
RX DATA OUT
The
Model
generation D.I. monolithic transceiver
which provide full compliance with
MIL-STD-1553/1760 and data bus
requirements
packages with the lowest standby
power consumption and one power
supply operation.
The dual channel Model ACT4468D
perform the front-end analog function
of inputting and outputting data
through
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.
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,
connected to a different data bus with
no interaction.
Transmitter:
The
bi-phase TTL data at the input and
when coupled to the data bus with a
1:2.5 transformer, isolated on the
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
General Description
Aeroflex
Transmitter
ACT4468D
CIRCUIT TECHNOLOGY
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ACT4468D Summary of contents

Page 1

... MIL-STD-1553/1760 and data bus requirements in the smallest packages with the lowest standby power consumption and one power supply operation. The dual channel Model ACT4468D perform the front-end analog function of inputting and outputting data through a transformer to MIL-STD-1553/1760 data bus. Design of these transceivers reflects particular attention to active filter performance ...

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 Note 1. Power ON/OFF, measured from 75KHz to 1MHz at Point A-A. See Figure 5 Aeroflex Circuit Technology Absolute Maximum Ratings Condition Symbol V = 0.4 V ...

Page 4

... Note volts ±0.1 V, for all measurements unless otherwise specified. cc Note 3. Specifications apply over the case temperature range of -55°C to +125°C unless otherwise specfied. Note 4. All typical values are measured at +25°C Aeroflex Circuit Technology Condition Symbol Min V IDR CMRR ...

Page 5

... RX DATA IN RX DATA IN Configurations and Ordering Information Model No. DESC No. 5962-92061(Pending) ACT4468D ACT4468DF 5962-92061(Pending) 5962-92061(Pending) ACT4468DI 5962-92061(Pending) ACT4468DFI Aeroflex Circuit Technology Figure 4 – Transmitter (TX) Output Offset volts 0 Volts Figure 6 – Power Dissipation vs. Duty Cycle (Total hybrid with one channel transmitting ...

Page 6

... Identifies Pin 1 .098 .122 .05 .100 BSC Notes 1. Dimensions shown are in inches Specifications subject to change without notice. Aeroflex Circuit Technology 35 South Service Road Plainview New York 11803 Aeroflex Circuit Technology Package Outline Drawings .990 .890 .910 11 .290 .310 10 .098 .122 .990 1.010 ...

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