ACT4455 Datasheet PDF - Aeroflex Circuit Technology
| Part Number | ACT4455 | |
| Description | ACT 4455 / 4459 SINGLE SUPPLY TRANSCEIVERS FOR MIL-STD-1553/1760 | |
| Manufacturers | Aeroflex Circuit Technology | |
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There is a preview and ACT4455 download ( pdf file ) link at the bottom of this page. Total 8 Pages | ||
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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
CIRCUIT TECHNOLOGY
www.aeroflex.com/act1.htm
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.
TX DATA IN
TX DATA IN
TX INHIBIT
+5 V
+5V RTN
RX DATA IN
RX DATA IN
STROBE
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)
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,
eroflex Circuit Technology – Data Bus Modules For The Future © SCD4455 REV A 1/29/98
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Figure 3 – Transmitter (TX) Output Wave form
Figure 4 – Transmitter (TX) Output offset
6V P-P MIN
9V P-P MAX
90%
tf*
0 volts
0 Volts
10%
tr*
* Rise and fall times measured at point A-A' in Figure 5
LAST BIT
2.5 µsec
Magnified View
*OUTPUT OFFSET
*OUTPUT OFFSET
*Offset measured at point A-A' in Figure 5
Figure 5 – Typical direct transformer connection
70Ω 70Ω
Figure 6 – Power Dissipation vs. Duty Cycle
(Total hybrid with one channel transmitting
and the other not powered)
TX DATA OUT
TX DATA OUT
RX DATA IN
RX DATA IN
N1:N2 52.5Ω
P BA
Center
Tap
N1:N3 for
Stub
Coupling
P' B' A'
52.5Ω
Transformer turns ratios:
N1:N2 = 1:2.5
N1:N3 = 1:1.77
Use Technitrol 1553-45 or equivalent
2000
1800
1600
1400
1200
Maximum
1000
800
Typical
600
400
200
0
0 10 20 30 40 50 60 70 80 90 100
DUTY CYCLE – PERCENT
Note:Vcc=5 Volts,Transformer ratio 1:2.5, Vbus (pt A-A') at 7.5 Volts P-P
Aeroflex Circuit Technology
5 SCD4455 REV A 1/29/98 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 ACT4455 electronic component. |
| Information | Total 8 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ ACT4455.PDF Datasheet ] | |
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Featured Datasheets
| Part Number | Description | MFRS |
| ACT4453 | The function is ACT 4453 / 4463 SINGLE SUPPLY TRANSCEIVERS FOR MIL-STD-1553/1760. Aeroflex Circuit Technology | |
| ACT4453-2 | The function is ACT 4453 / 4463 SINGLE SUPPLY TRANSCEIVERS FOR MIL-STD-1553/1760. Aeroflex Circuit Technology | |
| ACT4454 | The function is ACT 4454 / 4460 Single Supply Transceivers for MIL-STD-1553A/B & MacAir A3818/ A4905/ A5232 & A5690. Aeroflex Circuit Technology | |
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