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ACT4459 ACT 4455 / 4459 SINGLE SUPPLY TRANSCEIVERS FOR MIL-STD-1553/1760
型号:   ACT4459
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描述:   ACT 4455 / 4459 SINGLE SUPPLY TRANSCEIVERS FOR MIL-STD-1553/1760
文件大小 :   128 K    8 页
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品牌   AEROFLEX [ AEROFLEX CIRCUIT TECHNOLOGY ]
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ACT 4455 / 4459
SINGLE SUPPLY TRANSCEIVERS
FOR MIL-STD-1553/1760
Features
• Single 5 Volt Supply Operation
• Low Power Dissipation
• Small Size & Light Weight
• Single Transceiver Save Space & Cost
• Outstanding MIL-STD-1553 performance
• Processed and Screened to Mil-STD-883
Specs
• Radiation Hard Dielectric Isolation
Monolithic construction for Severe
Environments
• Superior High Frequency Line Transient and
Input Ripple Rejection
• Input and Output TTL Compatible Design
• DESC SMD# 5962-96741
General Description:
The Aeroflex Circuit Technology
ACT4455 / 4459 series are next
generation monolithic transceiver
designs
which
provides
full
compliance with MIL-STD-1553A/B
and 1760 requirements in the
smallest packages with low power
consumption and single power supply
operation.
The ACT4455 / 4459 series
performs the front-end analog
function of inputting and outputting
data through a transformer to the
MIL-STD-1553 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
distortion.
Efficient
transmitter electrical and thermal
design provides low internal power
dissipation and heat rise at high as
well as low duty cycles.
www.aeroflex.com/act1.htm
CIRCUIT TECHNOLOGY
TX DATA OUT
TX DATA IN
TX DATA IN
DRIVER
ACTIVE
FILTER
OUTPUT
STAGE
TX DATA OUT
Transmitter:
The Transmitter section accepts
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
two 70 Ohm terminations, the data
bus signal is typically 7.5 Volts P-P
at A-A' (See Figure 5). When both
DATA and DATA inputs are held low
or high, the transmitter output
becomes a high impedance and is
“removed” from the line. In addition,
TX INHIBIT
RX DATA OUT
COMP.
+5 V
REFERENCE
+5V RTN
RX DATA IN
RX DATA IN
INPUT
AMPLIFIER
ACTIVE
FILTER
RX DATA OUT
COMP.
STROBE
Block Diagram (without Transformer)
eroflex Circuit T
echnology
– Data Bus Modules For The Future © SCD4455 REV A 1/29/98
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