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ACT4423-DF Schematic ( PDF Datasheet ) - Aeroflex Circuit Technology

Teilenummer ACT4423-DF
Beschreibung ACT4423 DUAL TRANSCEIVER FOR MIL-STD-1553/1760
Hersteller Aeroflex Circuit Technology
Logo Aeroflex Circuit Technology Logo 




Gesamt 7 Seiten
ACT4423-DF Datasheet, Funktion
ACT4423 DUAL TRANSCEIVER
FOR MIL-STD-1553/1760
Features
CIRCUIT TECHNOLOGY
www.aeroflex.com
• +5 / +12 Volt Power Supply Operation
• Eliminates Negative Power Supply
General Description
• Low Power Dissipation
• Small Size & Light Weight
• Dual Transceivers Saves Space & Cost
• Outstanding MIL-STD-1553 performance
• Radiation Hard Dielectric Isolation Monolithic
Construction for Severe Environments
• Superior High Frequency Line Transient and
Input Ripple Rejection
• Input and Output TTL Compatible Design
• Processed and Screened to MIL-STD-883 Specs
• MIL-PRF-38534 Compliant Devices Available
• DESC SMD (Standard Military Drawing) Pending
TX DATA IN
TX DATA IN
TX INHIBIT IN
+5V (VL)
+12V (VCC)
GND1
GND2
GND3
RX DATA IN
RX DATA IN
CASE
RX STROBE IN
DRIVER
INPUT
AMPLIFIER
ACTIVE
FILTER
REFERENCE
ACTIVE
FILTER
OUTPUT
STAGE
TX DATA OUT
TX DATA OUT
COMP.
RX DATA OUT
COMP.
RX DATA OUT
Block Diagram (Without Transformer)
The Aeroflex Circuit Technology
ACT4423 is a next generation
monolithic transceiver design
which provides full compliance to
MIL-STD-1553A/B and 1760
requirements in a small package
with low power consumption.
The ACT4423 series performs the
front-end analog function of
inputting and outputting data
through a transformer to the
MIL-STD-1553 data bus.
Design of this transceiver 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.
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,
each channel may be connected to
a different data bus with no
interaction.
Transmitter:
The Transmitter section accepts
bi-phase TTL data at the input and
when coupled to the data bus with a
1:1 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
eroflex Circuit Technology – Data Bus Modules For The Future © SCD4423 REV B 6/3/99






ACT4423-DF Datasheet, Funktion
Aeroflex Circuit Technology
Figure 6 – Lead Numbers & Functions
ACT4423
Pin
#
Function Channel
1 TX DATA OUT
2 TX DATA OUT
A
A
3 GROUND 1
A
4 NC
5 RX DATA OUT
A
6 STROBE
A
7 GROUND 2
A
8 RX DATA OUT
A
9 CASE
10 TX DATA OUT
B
11 TX DATA OUT
B
12 GROUND 1
B
13 NC
14 RX DATA OUT
15 STROBE
B
B
16 GROUND 2
B
17 RX DATA OUT
B
18 NC
19 VCC
B
20 RX DATA IN
B
21 RX DATA IN
B
22 GROUND 3
B
23 NC
24 +5 V (VL)
B
25 INHIBIT
B
26 TX DATA IN
B
27 TX DATA IN
B
28 VCC
A
29 RX DATA IN
A
30 RX DATA IN
A
31 GROUND 3
A
32 NC
33 +5 V (VL)
A
A
34 INHIBIT
A
35 TX DATA IN
A
36 TX DATA IN
A
6 SCD4423 REV B 6/3/99 Plainview NY (516) 694-6700

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