ACT4438 Aeroflex Circuit Technology, ACT4438 Datasheet

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ACT4438

Manufacturer Part Number
ACT4438
Description
Act4438-1 Transceiver For Mil-std-1553 / 1760 in a Chipscale Package
Manufacturer
Aeroflex Circuit Technology
Datasheet
Features
• Transceiver meets military data bus requirements,
• Low power dissipation at full output power
• Single +5V power supply
• Current Source Transmitter Output
• Bipolar Monolithic Construction
• Miniature Chipscale Package Bumped Chip Carrier
RX DATA IN
RX DATA IN
MIL-STD-1553 and MIL-STD-1760
(BCC++)
TX DATA IN
TX DATA IN
TX INHIBIT
eroflex Circuit T
GROUND
NOTE: BCC++ and Bumped Chip Carrier are Trademarks of Fujitsu Ltd.
STROBE
RISET
+5 V
Transceiver for MIL-STD-1553 / 1760
Block Diagram (without Transformer)
DRIVER
INPUT
AMP
echnology
in a Chipscale Package
REFERENCE
SHAPING
ACTIVE
FILTER
– Data Bus Modules For The Future © SCD4438-1 REV A 11/19/01
ACT4438–1
Preliminary
OUTPUT
STAGE
COMP.
COMP.
Shown 2X
RX DATA OUT
RX DATA OUT
TX DATA OUT
TX DATA OUT
The
Model
generation
which provide full compliance with
MIL-STD-1553/1760 and data bus
requirements in a Bumped Chip
Carrier™ (BCC++) with the lowest
standby
single power supply operation.
The Model ACT4438-1 performs the
front-end analog function of inputting
and
transformer to a MIL-STD-1553/1760
data
components.
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.
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 55 Ohm fault
isolation resistors for direct stub
coupling.
produced for RISET = 2.7K Ohm is
typically 7.5 Volts nominal P-P at
A-A’, See Figure 5. When both DATA
and DATA inputs are held low, the
transmitter output becomes a high
impedance and is “removed” from the
line.
“INHIBIT" input provides for the
removal of the transmitter output from
the line. A logic “1” applied to the
“INHIBIT” takes priority over the
General Description
outputting
Transmitter
Aeroflex
In
bus
ACT4438-1
CIRCUIT TECHNOLOGY
power
addition,
The
www.aeroflex.com
with
monolithic transceiver
distortion.
Circuit
data
consumption
data
a
section
an
few
is
bus
through
Technology
overriding
a
external
Efficient
accepts
signal
next
and
a

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ACT4438 Summary of contents

Page 1

... MIL-STD-1553/1760 and data bus requirements in a Bumped Chip Carrier™ (BCC++) with the lowest ™ standby power consumption single power supply operation. The Model ACT4438-1 performs the front-end analog function of inputting and outputting data through transformer to a MIL-STD-1553/1760 data bus ...

Page 2

... Figure 2. Receiver Logic Waveforms LINE TO LINE INPUT DATA OUT DATA OUT NOTE Waveforms shown are for normally low devices. : Aeroflex Circuit Technology Receiver The Receiver section accepts bi-phase differential data at the input and produces two TTL signals at the output. The outputs are DATA and ...

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 ...

Page 4

... Volts ±0.1 V, for all measurements unless otherwise specified. cc Note 3. Specifications apply over the case temperature range of -55°C to +90°C unless otherwise specfied. Note 4. All typical values are measured at +25°C. Aeroflex Circuit Technology Condition Symbol if not used pullup recommended ...

Page 5

... TX DATA OUT 52 RX DATA DATA IN RISET GND 37 9,35,39,50 2.7KΩ Configurations and Ordering Information Model No. Screening Level Industrial Temperature ACT4438-1 -55°C to +90°C Aeroflex Circuit Technology Figure 4 – Transmitter (TX) Output Offset volts 0 Volts Figure 6 – Power Dissipation vs. Duty Cycle 2200 ...

Page 6

... Package Pin Out Description - ACT4438-1 Pin # Function DATA DATA INHIBIT IN 9 GND DATA OUT 19 TX DATA OUT 20 TX DATA OUT 21 TX DATA OUT ...

Page 7

... C.L.(Pkg) C 0.2 7.15 TYP "A" Notes 1. Dimensions in millimeters Specifications subject to change without notice. Aeroflex Circuit Technology 35 South Service Road Plainview New York 11803 Aeroflex Circuit Technology Package Description 0.20 0.14 MIN "B" 0.45 ±0.03 0.08 M "C" Telephone: (516) 694-6700 FAX: Toll Free Inquiries: 1-(800) THE-1553 ...

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