ACT4453 - Aeroflex Microelectronic Solutions

Datasheet
Standard Products
ACT4453 Single Supply Dual Transceiver
for MIL-STD-1553A/B, MIL-STD-1760 & SAE-AS15531
www.aeroflex.com/Avionics
June 29, 2015
FEATURES

Single +5V power supply

Outstanding MIL-STD-1553 / SAE-AS15531 performance

Monolithic construction

Input and output TTL compatible design

Designed for commercial, industrial and aerospace applications

MIL-PRF-38534 compliant devices available

Aeroflex-Plainview is a Class H & K MIL-PRF-38534 manufacturer

1.9"L x .78"W, 36 lead, Dual-in-line or Flat package, hermetic package

Available on DLA SMD 5962-89522
GENERAL DESCRIPTION
The radiation tolerant ACT4453 is the next generation monolithic transceiver design which provides full
compliance with MIL-STD-1553A/B, MIL-STD-1760 and meets SAE-AS15531 requirements in the smallest
packages with low power consumption and single power supply operation. The 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 1:2.12
ratio transformer the data bus signal is typically 7.0 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, 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 condition of the data inputs and disables the
transmitter (See Figure 1 Transmitter Logic Waveform). The Transmitter may be safely operated for an
indefinite period with the bus (point A-A') short circuited at 100% duty cycle.
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 negative excursions of the input beyond a
pre-determined threshold (See Figure 2 Receiver Logic Waveform).
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 connections).
A low level at the Strobe input inhibits the DATA and DATA outputs (Pin is internally pulled up).
SCD4453 Rev F
TX DATA IN
TX DATA IN
TX INHIBIT
+5 V
35 (26)
DRIVER
36 (27)
1 (10)
TX DATA OUT
ACTIVE
FILTER
OUTPUT
STAGE
2 (11)
TX DATA OUT
REFERENCE
COMP.
8 (17)
RX DATA OUT
ACTIVE
FILTER
COMP.
5 (14)
RX DATA OUT
34 (25)
33 (24)
3,7,31
+5V RTN (12,16,22)
9
CASE
RX DATA IN
RX DATA IN
STROBE
30 (21)
INPUT
AMPLIFIER
29 (20)
6 (15)
BLOCK DIAGRAM (WITHOUT TRANSFORMER)
CHANNEL A (CHANNEL B)
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 1 – TRANSMITTER LOGIC WAVEFORMS IDEALIZED *
LINE TO LINE
INPUT
STROBE
DATA OUT
DATA OUT
Note overlap
* See Figure 7 for Actual Waveforms
FIGURE 2 – RECEIVER LOGIC WAVEFORMS IDEALIZED *
SCD4453 Rev F 6/29/15
Aeroflex Plainview
2
ABSOLUTE MAXIMUM RATINGS
Operating case temperature
-55°C to +125°C
Storage case temperature
-65°C to +150°C
Power supply voltage
-0.3VDC to +7.0VDC
Logic input voltage
-0.3VDC to +5.5VDC
±10 V
Receiver differential input
±5V
Receiver input voltage (common mode)
650 mA
Driver peak output current
2.0 Watts
Total package power dissipation over the full operating
case temperature range
(Note: Normal operation conditions require one transmitter on and the
other off at any given time)
10°C
Maximum junction to case temperature
5°C/W
Thermal resistance – Junction to case
Package Weight
Plug-in
Flat Package
16g (0.564oz)
12.5g (0.441oz)
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
VIN = 0.4V
IILD
-
-0.2
-0.4
mA
"1" Input Current
VIN = 2.7V
IIHD
-
1
40
µA
"0" Input Voltage
VILD
-
-
0.7
V
"1" Input Voltage
VIHD
2.0
-
-
V
INHIBIT CHARACTERISTICS
"0" Input Current
VIN = 0.4V
IILI
-
-0.2
-0.4
mA
"1" Input Current
VIN = 2.7V
IIHI
-
1.0
40
µA
"0" Input Voltage
VILI
-
-
0.7
V
"1" Input Voltage
VIHI
2
-
-
V
Delay from TX inhibit, (0?1) to inhibited output
tDXOFF
-
250
450
nS
Delay from TX inhibit, (1?0) to active output
tDXON
-
150
250
nS
Differential Output Noise, inhibit mode
VNOI
-
2
10
mVp-p
Note 1
ZOI
2K
-
-

RL = 70
VO
18
21
25
Vp-p
tr
100
200
300
nS
VOS
-
-
±250
mVpeak
tDTX
-
120
250
nS
Differential Output Impedance (inhibited)
OUTPUT CHARACTERISTICS
Differential output level (Point C-C')
Rise and fall times (10% to 90% of p-p output)
Output offset at point C-C’ on Figure 5, 2.5 µS
after midpoint crossing of the parity bit of the last
word of a 660µS message
RL = 70
Delay from 50% point of TX DATA or TX DATA
input to zero crossing of differential signal
SCD4453 Rev F 6/29/15
Aeroflex Plainview
3
ELECTRICAL CHARACTERISTICS – RECEIVER SECTION
Parameter
Differential Voltage Range
(See Figure 5, point P-P’)
Condition
Symbol
Min
Typ
Max
Unit
TXFMR
2.12:1
VIDR
-
14
20
Vp-p
CMRR
45
-
-
dB
Common Mode Rejection Ratio (Note 3)
STROBE CHARACTERISTICS (LOGIC "0" INHIBITS OUTPUT)
"0" Input Current
VS = 0.4V
IIL
-
-0.2
-0.4
mA
"1" Input Current
VS = 2.7V
IIH
-
1
+40
µA
"0" Input Voltage
VIL
-
-
0.7
V
"1" Input Voltage
VIH
2.0
-
-
V
Strobe Delay (Turn-on or Turn-off)
tSD
-
50
100
nS
0.60
0.82
1.10
Vp-p
THRESHOLD CHARACTERISTICS (SINEWAVE INPUT )
Internal Threshold Voltage (Referred to the bus)
100KHz-1MHz
VTH
OUTPUT CHARACTERISTICS, RX DATA AND RX DATA
"1" State
IOH = -0.4mA
VOH
2.5
3.7
-
V
"0" State
IOL = -4mA
VOL
-
0.35
0.5
V
Delay, (average) from differential input zero
crossings to RX DATA and RX DATA output
50% points
tDRX
-
340
500
nS
ICC
-
18
30
mA
25% Duty Cycle
-
135
195
50% Duty Cycle
-
250
345
100% Duty Cycle
-
475
650
+4.75
+5.00
+5.50
POWER DATA
POWER SUPPLY CURRENTS – PER CHANNEL
Transmitter Standby
Note 4
POWER SUPPLY VOLTAGE
VCC
Operating Power Supply Voltage Range
V
NOTES:
1. Power on or off, measured from 75KHz to 1MHz at point A-A' and transformer self impedance of 3Kminimum.
2. VCC = 5 Volts ±0.5 V, bypassed by 220 µF (Tantalum recommended) Capacitor minimum. All measurements & specifications apply over
the temperature range of -55°C to +125°C (case temperature) unless otherwise specified.
3. When measured at point A-A’ with ± 10 Volt peak, line to ground, DC to 2MHz.
4. Typical power is measured with Vbus at point A-A’ = 7.0 Vp-p.
SCD4453 Rev F 6/29/15
Aeroflex Plainview
4
LAST BIT
tf*
90%
Magnified View
*
OUTPUT OFFSET
6V P-P MIN
9V P-P MAX
0 Volts
0 Volts
*
OUTPUT OFFSET
10%
2.5 µsec
tr *
*Offset measured at point C-C' in Figure 5
* Rise and fall times measured at point A-A' in Figure 5
FIGURE 3 – TRANSMITTER (TX) OUTPUT
WAVEFORM
FIGURE 4 – TRANSMITTER (TX) OUTPUT
OFFSET
2200
70
70
2000
1800
1600
TX DATA OUT
N1:N2
P
P'
B
B'
POWER DISSIPATION
MILLIWATTS
TX DATA OUT
52.5
A
C
Center N1:N3 for
Stub
Tap
Coupling
C'
A'
52.5
RX DATA IN
RX DATA IN
1400
Maximum
1200
1000
Typical
800
600
400
200
0
0
Transformer turns ratios:
N1:N2 = 1:2.2.12
N1:N3 = 1:1.5
Use Technitrol 1553-5 or equivalent
10
20
30
40
50
60
70
80
90 100
DUTY CYCLE – PERCENT
Note: Vcc = +5VDC, Transformer ratio 1:2.12, VBUS (Pt A-A') at 7.5VP-P.
FIGURE 6 – POWER DISSIPATION VS.
DUTY CYCLE
(Total, hybrid with one channel transmitting
and the other not powered)
FIGURE 5 – TYPICAL TRANSFORMER
DIRECT CONNECTION
SCD4453 Rev F 6/29/15
Aeroflex Plainview
5
S TA RT O F W O R D – 3 3 W O R D T R A N S M I S S I O N
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
E N D O F W O R D – 3 3 W O RD T R A N S M I S S I O N
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.
FIGURE 7 ACTUAL HYBRID WAVEFORMS * – 25°C TYPICAL
SCD4453 Rev F 6/29/15
Aeroflex Plainview
6
PACKAGE OUTLINES
Model ACT4453 Dual In Line
Model ACT4453-2 Flat Pack
0.78 MAX
1.90 MAX
0.085
19
1.70
.097
18
0.015
±0.002
19
36
0.78
MAX
0.600
1.90 MAX
18
Pin 1 & ESD
Designator
0.24
MIN
0.10 Typ
0.21MAX
36
0.018 DIA.
±0.002
0.097
0.086 R
4 Places
Pin 1 & ESD
Designator
0.175 MAX
0.010
±0.002
Notes
1. Dimensions shown are in inches
2. Pins are equally spaced at 0.100±0.002 tolerance, non-cumulative, each row.
0.40
MIN
2 SIDES
0.065
REF
PIN NUMBERS & FUNCTIONS
Pin #
Function
Channel
Pin #
Function
Channel
1
TX DATA OUT
A
19
NC
-
2
TX DATA OUT
A
20
RX DATA IN
B
3
GROUND 1
A
21
RX DATA IN
B
4
NC
-
22
GROUND 3
B
5
RX DATA OUT
A
23
NC
-
6
STROBE
A
24
+5V
B
7
GROUND 2
A
25
INHIBIT
B
8
RX DATA OUT
A
26
TX DATA IN
B
9
CASE
-
27
TX DATA IN
B
10
TX DATA OUT
B
28
NC
-
11
TX DATA OUT
B
29
RX DATA IN
A
12
GROUND 1
B
30
RX DATA IN
A
13
NC
-
31
GROUND 3
A
14
RX DATA OUT
B
32
NC
-
15
STROBE
B
33
+5 V
A
16
GROUND 2
B
34
INHIBIT
A
17
RX DATA OUT
B
35
TX DATA IN
A
18
NC
-
36
TX DATA IN
A
SCD4453 Rev F 6/29/15
Aeroflex Plainview
7
ORDERING INFORMATION
MODEL
DLA SMD #
ACT 4453-7
-
ACT 4453-2-7
-
ACT 4453
-
ACT 4453-2
-
SCREENING
PACKAGE
Commercial Flow, +25°C testing only
Military Temperature, -55°C to +125°C
Screened in accordance with MIL-PRF-38534, Class H
Dual in Line
Flat Package
Dual in Line
Flat Package
ACT-4453-001-4
ACT-4453-001-5
5962-8952211XC
5962-8952211XA
In accordance with DLA SMD 5962-89522, Class H
Dual in Line
ACT-4453-201-4
ACT-4453-201-5
5962-8952211YC
5962-8952211YA
In accordance with DLA SMD 5962-89522, Class H
Flat Package
ACT-4453-001-1
ACT-4453-001-2
5962-8952212XC
5962-8952212XA
In accordance with DLA SMD 5962-89522, Class H
Dual in Line
ACT-4453-201-1
ACT-4453-201-2
5962-8952212YC
5962-8952212YA
In accordance with DLA SMD 5962-89522, Class H
Flat Package
EXPORT CONTROL:
This product is controlled for export under the U.S. Department of Commerce (DoC). A license may be required prior to the export
of this product from the United States.
www.aeroflex.com/HiRel
info-ams@aeroflex.com
Datasheet Definitions:
Advanced
Preliminary
Datasheet
Product in Development
Shipping Non-Flight Prototypes
Shipping QML and Reduced HiRel
Aeroflex Plainview, Inc. reserves the right to make changes to any products and
services described herein at any time without notice. Consult Aeroflex or an authorized
sales representative to verify that the information in this data sheet is current before
using this product. Aeroflex does not assume any responsibility or liability arising out
of the application or use of any product or service described herein, except as expressly
agreed to in writing by Aeroflex; nor does the purchase, lease, or use of a product or
service from Aeroflex convey a license under any patent rights, copyrights, trademark
rights, or any other of the intellectual rights of Aeroflex or of third parties.
SCD4453 Rev F 6/29/15
8
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