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ACT4438-1 ACT4438-1 Transceiver for MIL-STD-1553 / 1760 in a Chipscale Package
型号:   ACT4438-1
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描述:   ACT4438-1 Transceiver for MIL-STD-1553 / 1760 in a Chipscale Package
文件大小 :   152 K    7 页
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品牌   AEROFLEX [ AEROFLEX CIRCUIT TECHNOLOGY ]
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ACT4438–1
Transceiver for MIL-STD-1553 / 1760
in a Chipscale Package
Preliminary
Features
• Transceiver meets military data bus requirements,
MIL-STD-1553 and MIL-STD-1760
• Low power dissipation at full output power
• Single +5V power supply
• Current Source Transmitter Output
• Bipolar Monolithic Construction
• Miniature Chipscale Package Bumped Chip Carrier
(BCC++)
CIRCUIT TECHNOLOGY
www.aeroflex.com
General Description
The Aeroflex Circuit Technology
Model ACT4438-1 is a next
generation
monolithic transceiver
which provide full compliance with
MIL-STD-1553/1760 and data bus
requirements in a Bumped Chip
Carrier™ (BCC++) with the lowest
standby power consumption and
single power supply operation.
The Model ACT4438-1 performs the
front-end analog function of inputting
and outputting data through a
transformer to a MIL-STD-1553/1760
data bus with a few external
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
distortion.
Efficient
transmitter electrical and thermal
design provides low internal power
dissipation and heat rise at high as
well as low duty cycles.
Shown 2X
NOTE: BCC++ and Bumped Chip Carrier are Trademarks of Fujitsu Ltd.
Block Diagram (without Transformer)
Transmitter
The Transmitter section accepts
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. The data bus signal
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. In addition, an overriding
“INHIBIT" input provides for the
removal of the transmitter output from
the line. A logic “1” applied to the
“INHIBIT” takes priority over the
TX DATA OUT
TX DATA IN
TX DATA IN
DRIVER
SHAPING
OUTPUT
STAGE
TX DATA OUT
TX INHIBIT
RISET
+5 V
GROUND
REFERENCE
COMP.
RX DATA OUT
RX DATA IN
RX DATA IN
INPUT
AMP
ACTIVE
FILTER
COMP.
RX DATA OUT
STROBE
eroflex Circuit T
echnology
– Data Bus Modules For The Future © SCD4438-1 REV A 11/19/01
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