ACT4454 [AEROFLEX]
ACT 4454 / 4460 Single Supply Transceivers for MIL-STD-1553A/B & MacAir A3818, A4905, A5232 & A5690; ACT四千四百六十〇分之四千四百五十四单电源收发器为MIL -STD - 1553A / B＆ MacAir A3818 ， A4905 ， A5232和A5690
| 型号： | ACT4454 |
| 厂家： | 
AEROFLEX CIRCUIT TECHNOLOGY |
| 描述： | ACT 4454 / 4460 Single Supply Transceivers for MIL-STD-1553A/B & MacAir A3818, A4905, A5232 & A5690 |
| 文件： | 总8页 (文件大小：176K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ACT 4454 / 4460 Single Supply Transceivers
for MIL-STD-1553A/B &
MacAir A3818, A4905, A5232 & A5690
Features
• Single 5 Volt Supply Operation
• Low Power Dissipation
CIRCUIT TECHNOLOGY
www.aeroflex.com
• Small Size & Light Weight
• Dual Transceivers Save Space & Cost
• Outstanding MIL-STD-1553A/B and MacAir A3818, A4905,
A5232, A5690 Performance
• Processed and Screened to Mil-STD-883 Specs
• Radiation Hard Dielectric Isolation Monolithic Construction
for Severe Space Environments
General Description
The Aeroflex Circuit Technology
ACT4454 / 4460 series are next
generation monolithic transceiver
designs
which
provides
full
• Superior High Frequency Line Transient and Input Ripple
Rejection
• Input and Output TTL Compatible Design
• DESC SMD# 5962-92061
compliance with MIL-STD-1553A/B
and MacAir A3818, A5690, A5232 &
A4905 requirements in the smallest
packages
with
low
power
consumption and single power supply
operation.
The ACT4454
/
4460 series
performs the front-end analog
function of inputting and outputting
data through a transformer to the
MIL-STD-1553 data bus.
The ACT4454 / 4460 series can be
considered a "Universal" Transceiver
in that it is compatible with
MIL-STD-1553A & B, Macair A-3818,
A-4905, A-5232 and A-5690.
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
Case Style
ACT 4454FP
Actual Size
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 OUT
TX DATA IN
ACTIVE
FILTER
OUTPUT
STAGE
DRIVER
TX DATA OUT
TX DATA IN
TX INHIBIT
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.
RX DATA OUT
REFERENCE
COMP.
COMP.
+5 V
+5V RTN
RX DATA OUT
RX DATA IN
RX DATA IN
INPUT
AMPLIFIER
ACTIVE
FILTER
STROBE
Transmitter:
The Transmitter section accepts
bi-phase TTL data at the input and
Block Diagram (without Transformer)
eroflex Circuit Technology – Data Bus Modules For The Future © SCD4454 REV A 3/17/99
when coupled to the data bus with a takes priority over the condition of
1:2.5 ratio transformer, isolated on the data inputs and disables the
the data bus side with two 52.5 Ohm transmitter. (See Transmitter Logic
negative excursions of the input
beyond pre-determined
threshold.(See Receiver Logic
Waveform. Figure 2.)
a
fault isolation resistors, and loaded Waveform,
Figure
1.)
The
by two 70 Ohm terminations, the Transmitter may be safely operated
data bus signal is typically 7.0 volts for an indefinite period with the bus
P-P at A-A' (See Figure 5). When (point A-A') short circuited at 100%
both DATA and DATA inputs are held duty cycle.
The pre-set internal thresholds
will detect data bus signals
exceeding 1.20 Volts P-P and
reject signals less than 0.6 volts
P-P when used with a transformer.
(See Figure 5 for transformer data
and typical connection.)
low or high, the transmitter output
becomes a high impedance and is
Receiver:
The Receiver section accepts
bi-phase differential data at the input
and produces two TTL signals at the
output. The outputs are DATA and
DATA, and represent positive and
“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”
A low level at the Strobe input
inhibits the DATA and DATA
outputs. If unused, a 2K pull-up to
+5 Volts is recommended
Figure 1 — Transmitter Logic Waveforms Idealized*
DATA IN
DATA IN
INHIBIT
LINE TO LINE
OUTPUT
Note:
DATA and DATA inputs must be complementary waveforms or 50% duty cycle average, with no delays between them,
and must be in the same state during off times (both high or low).
*
Figure 2 — Receiver Logic Waveforms Idealized
LINE TO LINE
INPUT
STROBE
DATA OUT
DATA OUT
Note overlap
* See Figure 7 For Actual Waveforms
Aeroflex Circuit Technology
SCD4454 REV A 3/17/99 Plainview NY (516) 694-6700
2
Absolute Maximum Ratings
Operating case temperature
Storage case temperature
Power supply voltage
-55°C to +125°C
-65°C to +150°C
-0.3 V to +7.0 V
-0.3 V to +5.5 V
±10 V
Logic input voltage
Receiver differential input
Receiver input voltage (common mode)
Driver peak output current
±5 V
800 mA
Total package power dissipation over the full operating
case temperature rise
2 Watts
(Note: Normal operation conditions require
one transceiver on and the other off.)
Maximum junction to case temperature
Thermal resistance – junction to case
10°C
5°C/W
Electrical Characteristics — Driver Section
Input Characteristics, TX DATA in or TX DATA in (Notes 2 & 3 apply)
Parameter Condition Symbol Min Typ Max
Unit
"0" Input Current
"1" Input Current
"0" Input Voltage
"1" Input Voltage
VIN = 0.4 V
VIN = 2.7 V
IILD
IIHD
mA
µA
V
-0.2
1
-0.4
40
VILD
VIHD
0.7
2.0
V
Inhibit Characteristics
IILI
mA
"0" Input Current
VIN=0.4V
VIN=2.7V
-0.2
1.0
-0.4
"1" Input Current
µA
V
IIHI
VILI
40
0.7
"0" Input Voltage
"1" Input Voltage
VIHI
V
2.0
2K
Delay from TX inhibit, (0→1) to inhibited output
Delay from TX inhibit, (1→0) to active output
tDXOFF
tDXON
VNOI
nS
nS
250
450
150
2
450
10
Differential output noise, inhibit mode
Differential output impedance (inhibited)
mVP-P
ZOI
Note 1
Ω
Output Characteristics
V
O
Differential output level
RL=35 Ω
RL=35 Ω
6.3
200
7.0
7.7
VP-P
nS
Rise and fall times(10% to 90% of P-P output)
tr
VOS
250
300
± 90
400
Output offset at point A-A' on Figure 5, 2.5µS
after midpoint crossing of the parity bit of the
last word of a 660µS message
mV peak
nS
Delay from 50% point of TX DATA or TX DATA
input to zero crossing of differential signal
290
tDTX
Note 1. Power on or off, measured from 75KHz to 1MHz at point A-A' and transformer self impedance of 3KΩ
minimum
Aeroflex Circuit Technology
SCD4454 REV A 3/17/99 Plainview NY (516) 694-6700
3
Electrical Characteristics — Receiver Section
Parameter
Condition
Symbol Min Typ Max Unit
Differential Receiver Input Voltage Range
(See Figure 5, point P–P')
TXFMR 2.5:1
VIDR
14
VP-P
dB
20
Common Mode Rejection Ratio (Note 3)
CMRR
45
Strobe Characteristics (Logic "O" Inhibits Output)
IIL
IIH
mA
µA
"0" Input Current
VS=0.4 V
-0.4
+40
-0.2
1
"1" Input Current
VS=2.7V
"0" Input Voltage
V
V
VIL
VIH
tSD
0.7
"1" Input Voltage
2.0
Strobe Delay (Turn-on or Turn-off)
nS
50
100
Threshold Characteristics (Sinewave Input)
Input Threshold Voltage (referred to the bus)
VTH
100KHz–1MHz
V P-P
0.60
2.5
0.82
1.10
Output Characteristics – RX DATA and RX DATA
VOH
VOL
"1" State
IOH = -0.4 mA
3.7
V
V
"0" State
IOL = -4.0 mA
0.35
0.5
Delay, (average) from Differential Input Zero
Crossings to RX DATA and RX DATA Output 50%
points
tDRX
340
500
nS
Power Data
Power Supply Currents – Per Channel
Transmitter Standby
13
30
25% duty cycle
50% duty cycle
170
200
Note 4
ICC
mA
320
700
400
800
100% duty cycle
Power Supply Voltage
VCC
V
Operating Power Supply Voltage Range
+4.75 +5.00 +5.50
Note 2: Vcc = 5 Volts ±0.1 V, bypassed by 2.2 µF (Tantalum recommended) Capacitor minimum. All measurements &
specifications apply over the temperature range of -55°C to +125°C (case temperature) unless otherwise
specified.
Note 3: When measured at point A-A’ with ± 10 Volt peak, line to ground, DC to 2MHz
Note 4: Typical power is measured with V
at point A-A’ = 7.0 VP-P
bus
Aeroflex Circuit Technology
SCD4454 REV A 3/17/99 Plainview NY (516) 694-6700
4
Figure 3 – Transmitter (TX) Output Wave Form
Figure 4 – Transmitter (TX) Output Offset
LAST BIT
t *
f
90%
Magnified View
OUTPUT OFFSET
*
6V P-P MIN
9V P-P MAX
0 volts
0 Volts
OUTPUT OFFSET
*
10%
2.5 µsec
t *
r
* Rise and fall times measured at point A-A' in Figure 5
*Offset measured at point A-A' in Figure 5
Figure 5 – Typical Direct Transformer Connection
Figure 6 – Power Dissipation vs. Duty Cycle
(Total hybrid with one channel transmitting
and the other not powered)
70Ω
70Ω
2000
1800
Maximum
52.5Ω
N1:N2
1600
1400
TX DATA OUT
P
B
A
N1:N3 for
Center
Tap
1200
Stub
Typical
Coupling
1000
B'
A'
P'
TX DATA OUT
RX DATA IN
RX DATA IN
800
600
400
200
0
52.5Ω
Transformer turns ratios:
N1:N2 = 1:2.5
0
10 20 30 40 50 60 70 80 90 100
DUTY CYCLE – PERCENT
N1:N3 = 1:1.77
Use Technitrol 1553-45 or equivalent
Note: Vcc = 5V, Transformer ratio 1:2.5, Vbus (pt A-A') at 7.0 Volts P-P
Aeroflex Circuit Technology
SCD4454 REV A 3/17/99 Plainview NY (516) 694-6700
5
Figure 7 ACTUAL HYBRID WAVEFORMS* — 25°C TYPICAL
START OF WORD – 33 WORD TRANSMISSION
TX DATA IN
CH 1
BUS OUT
Point A–A'
See Figure 5
CH 2
RX DATA OUT
CH 3
RX DATA OUT
CH 4
END OF WORD – 33 WORD TRANSMISSION
TX DATA IN
CH 1
BUS OUT
Point A–A'
See Figure 5
CH 2
RX DATA OUT
CH 3
RX DATA OUT
CH 4
Aeroflex Circuit Technology
SCD4454 REV A 3/17/99 Plainview NY (516) 694-6700
6
Figure 8 – Pin Numbers & Functions
ACT4454/4460
Function
Pin #
1
Channel
TX DATA OUT/RX DATA IN
TX DATA OUT/RX DATA IN
GROUND 1
A
A
A
A
A
A
B
B
B
B
B
B
B
B
B
B
B
B
A
A
A
A
A
A
2
3
4
RX DATA OUT
STROBE
5
6
RX DATA OUT
TX DATA OUT/RX DATA IN
TX DATA OUT/RX DATA IN
GROUND 1
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
RX DATA OUT
STROBE
RX DATA OUT
GROUND 2
+5V
GROUND 3
INHIBIT
TX DATA IN
TX DATA IN
GROUND 2
+5V
GROUND 3
INHIBIT
TX DATA IN
TX DATA IN
Aeroflex Circuit Technology
SCD4454 REV A 3/17/99 Plainview NY (516) 694-6700
7
C IRC UIT TEC HNO LO G Y
Configurations and Ordering Information
DESC No.
Receiver Data level
Normally High Rx
Configuration
1/
2/
Model No.
ACT 4454
ACT 4460
Case
5962-920610HZX
5962-92061HZX
Flat Package
Flat Package
Dual
Dual
Normally Low Rx
1/ Consult Factory for different temperature ranges and commercial quality levels.
2/ For space product assurance level substitute K for H. For solder dip substitute A for X. For gold plated leads substitute C for X.
Model ACT4454/4460 Flat Package
0.596
MAX
0.410
MIN
PIN 1
0.050
± 0.005
0.808
MAX
0.550
11 Equal Spaces
at 0.050
0.018
MAX
Noncumulative
0.010
± 0.003
0.056
MAX
0.095
MAX
Notes
1. Dimensions shown are in inches
2. Pins are equally spaced at 0.100±0.002 tolerance,
non-cumulative, each row
Aeroflex Circuit Technology
35 South Service Road
Plainview New York 11803
Specifications subject to change without notice.
Aeroflex Circuit Technology
Telephone: (516) 694-6700
FAX:
(516) 694-6715
Toll Free Inquiries: 1-(800) THE-1553
SCD4454 REV A 3/17/99 Plainview NY (516) 694-6700
8
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