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PDF ACT4464 Data sheet ( Hoja de datos )
| Número de pieza | ACT4464 | |
| Descripción | ACT 4458 / 4464 SINGLE SUPPLY TRANSCEIVERS FOR MIL-STD-1553/1760 | |
| Fabricantes | Aeroflex Circuit Technology | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de ACT4464 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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ACT 4458 / 4464
SINGLE SUPPLY TRANSCEIVERS
FOR MIL-STD-1553/1760
Features
• Single 5 Volt Supply Operation
• Low Power Dissipation
• Small Size & Light Weight
• Dual Transceivers 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# 5962-92061
Case Style
ACT 4458FP
Actual Size
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)
CIRCUIT TECHNOLOGY
www.aeroflex.com/act1.htm
General Description:
The Aeroflex Circuit Technology
ACT4458 / 4464 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 ACT4458 / 4464 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.
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
1:2.5 ratio transformer, isolated on
the data bus side with two 52.5 Ohm
fault isolation resistors, and loaded by
eroflex Circuit Technology – Data Bus Modules For The Future © SCD4458 REV A 1/29/98
1 page  
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 SCD4458 REV A 1/29/98 Plainview NY (516) 694-6700
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet ACT4464.PDF ] | |
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