ACT4438-1 Datasheet PDF - Aeroflex Circuit Technology
| Part Number | ACT4438-1 | |
| Description | ACT4438-1 Transceiver for MIL-STD-1553 / 1760 in a Chipscale Package | |
| Manufacturers | Aeroflex Circuit Technology | |
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There is a preview and ACT4438-1 download ( pdf file ) link at the bottom of this page. Total 7 Pages | ||
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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++)
Shown 2X
NOTE: BCC++ and Bumped Chip Carrier are Trademarks of Fujitsu Ltd.
Block Diagram (without Transformer)
TX DATA IN
TX DATA IN
TX INHIBIT
RISET
+5 V
GROUND
RX DATA IN
RX DATA IN
STROBE
DRIVER
INPUT
AMP
SHAPING
REFERENCE
ACTIVE
FILTER
OUTPUT
STAGE
TX DATA OUT
TX DATA OUT
CO MP.
RX DATA OUT
CO MP.
RX DATA OUT
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.
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
eroflex Circuit Technology – Data Bus Modules For The Future © SCD4438-1 REV A 11/19/01
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Figure 3 – Transmitter (TX) Output Waveform
Figure 4 – Transmitter (TX) Output Offset
6V P-P MIN
7.7V P-P MAX
90%
tf*
0 volts
0 Volts
10%
tr*
* Rise and fall times measured at point A-A’ in Fig 5
LAST BIT
Magnified View
OUTPUT OFFSET*
OUTPUT OFFSET*
2.5 µsec
*Offset measured at point A-A’ in Fig 5
Figure 5 – Typical Transformer Connection
Direct Stub
+5V
6.8µF 0.1µF
ZO
10,11,33,34
TX DATA OUT 18-21
ACT4438-1
TX DATA OUT 23-26
RX DATA IN 52
RX DATA IN 51
RISET
37
2.7KΩ
GND
9,35,39,50
ZO
1 : 2.5
14
25
6
37
8
55Ω
A
A’
55Ω
ZO
Transformer Model:
Use Pulse/Technitrol
Part# 1553-45 or equivalent
Figure 6 – Power Dissipation vs. Duty Cycle
2200
2000
1800
1600
1400
1200
1000
Maximum
800
Typical
600
400
200
0
10 20 30 40 50 60 70 80 90 100
DUTY CYCLE – PERCENT
Note: Vcc = 5 Volts, Vbus (pt A-A') at 7.5 Volts P-P
Model No.
ACT4438-1
Configurations and Ordering Information
Screening Level
Industrial Temperature
-55°C to +90°C
Receiver and Transmitter
Data Levels (See Figure 1)
Normally Low
Case
56 Bump Chip
Carrier
Aeroflex Circuit Technology
5 SCD4438-1 REV A 11/19/01 Plainview NY (516) 694-6700
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for ACT4438-1 electronic component. |
| Information | Total 7 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ ACT4438-1.PDF Datasheet ] | |
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