ACT4459 [AEROFLEX]
ACT 4455 / 4459 SINGLE SUPPLY TRANSCEIVERS FOR MIL-STD-1553/1760; ACT四千四百五十九分之四千四百五十五单电源收发器符合MIL -STD-一千七百六分之一千五百五十三
| 型号： | ACT4459 |
| 厂家： | 
AEROFLEX CIRCUIT TECHNOLOGY |
| 描述： | ACT 4455 / 4459 SINGLE SUPPLY TRANSCEIVERS FOR MIL-STD-1553/1760 |
| 文件： | 总8页 (文件大小：128K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ACT 4455 / 4459
SINGLE SUPPLY TRANSCEIVERS
FOR MIL-STD-1553/1760
Features
• Single 5 Volt Supply Operation
CIRCUIT TECHNOLOGY
www.aeroflex.com/act1.htm
• Low Power Dissipation
General Description:
The Aeroflex Circuit Technology
ACT4455 / 4459 series are next
generation monolithic transceiver
• Small Size & Light Weight
• Single Transceiver Save Space & Cost
• Outstanding MIL-STD-1553 performance
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.
• Processed and Screened to Mil-STD-883
Specs
• Radiation Hard Dielectric Isolation
Monolithic construction for Severe
Environments
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.
• Superior High Frequency Line Transient and
Input Ripple Rejection
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
• Input and Output TTL Compatible Design
• DESC SMD# 5962-96741
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:
TX DATA OUT
TX DATA IN
ACTIVE
FILTER
OUTPUT
STAGE
DRIVER
TX DATA OUT
RX DATA OUT
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,
TX DATA IN
TX INHIBIT
REFERENCE
COMP.
COMP.
+5 V
+5V RTN
RX DATA OUT
RX DATA IN
RX DATA IN
INPUT
AMPLIFIER
ACTIVE
FILTER
STROBE
Block Diagram (without Transformer)
eroflex Circuit Technology – Data Bus Modules For The Future © SCD4455 REV A 1/29/98
A low level at the Strobe input
inhibits the DATA and DATA
outputs. If unused, a 2K pull-up to
+5 Volts is recommended
an
overriding
“INHIBIT
input and produces two TTL signals at the
provides for the removal of the output. The outputs are DATA and
transmitter output from the line. A DATA, and represent positive and
logic “1” applied to the “INHIBIT” negative excursions of the input
takes priority over the condition of beyond
a
pre-determined
the data inputs and disables the threshold.(See
Receiver
Logic
transmitter. (See Transmitter Logic Waveform. Figure 2.)
Waveform,
Figure
1.)
The
Transmitter may be safely operated
The pre-set internal thresholds will
for an indefinite period with the bus detect data bus signals exceeding
(point A-A') short circuited at 100% 1.20 Volts P-P and reject signals
duty cycle.
less than 0.6 volts P-P when used
with a transformer. (See Figure 5 for
Receiver:
The Receiver section accepts
bi-phase differential data at the input
transformer
connection.)
data
and
typical
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 8 For Actual Waveforms
2
Aeroflex Circuit Technology
SCD4455 REV A 1/29/98 Plainview NY (516) 694-6700
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
600 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
350
150
2
250
10
Differential output noise, inhibit mode
Differential output impedance (inhibited)
mVP-P
ZOI
Note 1
W
Output Characteristics
V
O
Differential output level
RL=35 W
RL=35 W
6
7.5
9
VP-P
nS
Rise and fall times(10% to 90% of P-P output)
tr
VOS
100
200
300
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
± 90
250
Delay from 50% point of TX DATA or TX DATA
input to zero crossing of differential signal
120
tDTX
Note 1. Power on or off, measured from 75KHz to 1MHz at point A-A' and transformer self impedance of 3KW
minimum
3
Aeroflex Circuit Technology
SCD4455 REV A 1/29/98 Plainview NY (516) 694-6700
Electrical Characteristics — Receiver Section
Parameter
Condition
Symbol Min Typ Max Unit
Differential Receiver Input Voltage Range
(See Figure 5, point P–P')
TXFMR
2.12:1
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
0.60
2.5
0.82
1.10
V P-P
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
18
30
25% duty cycle
50% duty cycle
150
175
Note 4
ICC
mA
300
600
350
700
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’ = 7.5 VP-P
bus
4
Aeroflex Circuit Technology
SCD4455 REV A 1/29/98 Plainview NY (516) 694-6700
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)
70W
70W
2000
1800
1600
1400
52.5W
N1:N2
TX DATA OUT
P
B
A
N1:N3 for
Center
Tap
1200
1000
800
600
400
200
0
Maximum
Stub
Coupling
Typical
A'
B'
P'
TX DATA OUT
RX DATA IN
RX DATA IN
52.5W
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=5 Volts,Transformer ratio 1:2.5, Vbus (pt A-A') at 7.5 Volts P-P
5
Aeroflex Circuit Technology
SCD4455 REV A 1/29/98 Plainview NY (516) 694-6700
Figure 8 ACTUAL HYBRID WAVEFORMS* — 25°C TYPICAL
START OF WORD – 33 WORD TRANSMISSION
TX DATA IN
CH 2
BUS OUT
Point A–A'
See Figure 5
CH 1
RX DATA OUT
CH 3
RX DATA OUT
CH 4
END OF WORD – 33 WORD TRANSMISSION
TX DATA IN
CH 2
BUS OUT
Point A–A'
See Figure 5
CH 1
RX DATA OUT
CH 3
RX DATA OUT
CH 4
*
Oscilloscope used is a TEK TDS540 with Probe 6139A.
6
Aeroflex Circuit Technology
SCD4455 REV A 1/29/98 Plainview NY (516) 694-6700
Figure 7 – Pin Numbers & Functions
ACT4455/4459
Pin #
1
Function
TX DATA OUT
+5V
2
3
+5V
4
TX DATA OUT
TX DATA OUT
GROUND 1
NC
5
6
7
8
NC
9
+5V
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
RX DATA OUT
STROBE
NC
RX DATA OUT
NC
+5V
GROUND 3
NC
RX DATA IN
RX DATA IN
NC
NC
GROUND 4
+5V
INHIBIT
TX DATA IN
TX DATA IN
GROUND 2
TX DATA OUT
7
Aeroflex Circuit Technology
SCD4455 REV A 1/29/98 Plainview NY (516) 694-6700
C I R C U I T T E C H N O L O G Y
Configurations and Ordering Information
DESC No.
Receiver Data level
Normally Low Rx
Configuration
Model No.
ACT 4455
ACT 4459
Case
LCC
5962-96741
5962-96741
Single
Single
Normally High Rx
LCC
ACT4455/4459 LCC LEADLESS CHIP CARRIER
0.055
0.045
0.055
0.045
0.028
0.022
0.055
0.045
0.458
0.442
0.100
MAX
0.458
0.442
Notes
2. Pins are equally spaced at 0.100±0.002 tolerance,
non-cumulative, each row
Telephone: (516) 694-6700
Aeroflex Circuit Technology
35 South Service Road
FAX:
(516) 694-6715
Toll Free Inquiries: 1-(800)THE-1553
Plainview New York 11830
Specifications subject to change without notice.
8
Aeroflex Circuit Technology
SCD4455 REV A 1/29/98 Plainview NY (516) 694-6700
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