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www.aeroflex.com/act1.htm
Features
EX THRESHOLD
EX THRESHOLD
ARX4404 & 4407 Transceivers for
MACAIR A3818, A5690, A5232, A4905
& MIL-STD-1553
• ARX4404 Transceiver meets MIL-STD-1553A & B,
Macair A3818, A4905, A5232 and A5690 specs
• ARX4407 Transceiver meets MIL-STD-1553 specs
• Bipolar Supply ±15V to ±12V, Logic Supply +5V
• Direct replacement for CT3231 and CT3232
• Voltage source output for higher bus drive power
• Plug-in, flat package or low profile flat package
• Monolithic construction using linear ASICs
• Variable receiver threshold capability
• Low receiver data level versions, ARX4440, 4467
• Processed and screened to MIL-STD-883 specs
• DESC SMD (Standard Military Drawing)
• MIL-PRF-38534 Compliant Devices Available
ARX4404FP/4404 Transceivers
TX DATA IN
TX DATA IN
TX INHIBIT
DATA
SET INTERNAL
THRESHOLD
DATA
+5 V
-12V or -15V
RX DATA IN
RX DATA IN
+15V or +12V
STROBE
DATA
DATA
DRIVER
INPUT
AMP
SHAPING
V-
ACTIVE
FILTER
Block Diagram (without Transformer)
OUTPUT
STAGE
V+
COMP.
COMP.
TX DATA OUT
TX DATA OUT
RX DATA OUT
RX DATA OUT
CIRCUIT TECHNOLOGY
General Description
The Aeroflex Laboratories
transceiver models ARX4404 and
ARX4407 are new generation
monolithic transceivers which provide
full compliance with Macair and
MIL-STD-1553 data bus
requirements
The model ARX4404 and model
ARX4407 perform the front-end
analog function of inputting and
outputting data through a transformer
to a MIL-STD-1553 or Macair data
bus. The ARX4404 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. The
ARX4407 is compatible with
MIL-STD-1553A and B.
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. The ARX4404
series active filter design has
additional high frequency roll-off to
provide the required Macair low
harmonic distortion waveform without
increasing the pulse delay
characteristics significantly.
Efficient transmitter electrical and
thermal design provides low internal
power dissipation and heat rise at
high and well as low duty cycles.
An optional receiver input threshold
adjustment can be accomplished by
the use of the "Set Internal
Threshold" terminals.
Transmitter
The Transmitter section accepts
bi-phase TTL data at the input and
when coupled to the data bus with a
EROFLEX CIRCUIT TECHNOLOGY-Data Bus Modules for the Future ©SCD4404 REV D 10/27/99
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Aeroflex Circuit Technology SCD4404 REV D 10/27/99 Plainview NY (516) 694-6700
1:1 transformer, isolated on the data
devices, the receiver outputs are swapped as shown by the dashed lines
bus side with two 52.5 Ohm fault
isolation resistors, and loaded by
two 70 Ohm terminations plus
additional receivers, the data bus
signal produced is 7.0 Volts
minimum P-P at A-A’. (See
Figure5.) When both DATA and
inputs are held low or high, the
DATA
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
Transmitter Logic Waveforms,
Figure 1.)
Figure 1 - Transmitter Logic Waveforms
DATA IN
The transmitter utilizes an active
filter to suppress harmonics above
1MHz to meet Macair specifications
A-3818, A-4905, A-5232 and
A-5690. The transmitter may be
safely operated for an indefinite
period at 100% duty cycle into a
data bus short circuit.
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
, and represent positive and
DATA
negative excursions of the input
beyond a pre-determined threshold.
(See Receiver Logic Waveforms,
Figure 2.)
The internal threshold is nominally
set to detect data bus signals
exceeding 1.05 Volts P-P and
reject signals less than 0.6 Volts
P-P when used with a 1:1 turns
ratio transformer. (See Figure 5 for
transformer data and typical
connection.) This threshold setting
can be held by grounding the
appropriate pins or modified with
the use of external resistors.
A low level at the Strobe input
inhibits the DATA and DATA
outputs. If unused, a 2K Ohm
pull-up to +5 Volts is
recommended.
DATA IN
INHIBIT
LINE TO LINE
OUTPUT
Notes:
1. Line to line waveforms illustrate Macair signals, MIL-STD-1553 signals are trapezoidal
2. DATA and DATA
3. DATA and DATA
inputs must be complementary waveforms or 50% duty cycle average, with no delays between them.
must be in the same state during off time (both high or low).
Figure 2 - Receiver Logic Waveforms
LINE TO LINE
INPUT
DATA OUT
DATA OUT
NOTE: Waveforms shown are for normally low devices. For normally high receiver output
level
2
Note overlap
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Aeroflex Circuit Technology SCD4404 REV D 10/27/99 Plainview NY (516) 694-6700
Absolute Maximum Ratings
Operating case temperature
Storage Case Temperature
-55°C to +125°C
-65°C to +150°C
Power Supply Voltages ±16 V +7 V
Logic Input Voltage -0.3 V to +5.5 V
Receiver Differential Input
±40 V
Receiver Input Voltage (Common Mode) ±10V
Driver Peak Output Current 300 mA
Total Package Power Dissipation over the Full
Operating Case Temperature Range
Maximum Junction to Case Temperature
3.6 Watts
18°C
Junction-Case, Thermal Resistance 5°C/W
Electrical Characteristics, Transmitter Section
Input Characteristics, TX DATA IN or TX DATA IN
Parameter Condition Symbol Min Typ Max Unit
"0" Input Current VIN = 0.4 V I
"1" Input Current V
= 2.7 V I
IN
"0" Input Voltage V
"1" Input Voltage V
ILD
IHD
IHD
IHD
2.0 - - V
-0.2 -0.4 mA
-
-
1.0
40 µA
- - 0.7 V
Inhibit Characteristics
"0" Input Current V
"1" Input Current V
"0" Input Voltage V
"1" Input Voltage V
Delay from TX inhibit(0→1) to inhibited output Note 1 t
Delay from TX inhibit, (1→0) to active output Note 1 t
Differential output noise, inhibit mode V
Differential output impedance (inhibited) Note 2 Z
= 0.4 V I
IN
= 2.7 V I
IN
Output Characteristics
Differential output level R
Rise and fall times
(10% to 90% of p-p output)
Output offset at point A-A’ on Fig 5., 2.5 µS
after midpoint crossing of the parity bit of the
last word of a 660 µS message
Delay from 50% point of TX DATA or
TX DATA
input to zero crossing of
differential signal. (Note 1)
= 35 Ω V
L
ARX4404
ARX4407 100 180 300
= 35 Ω V
R
L
ARX4404
ARX4407 150 300 nS
ILI
IHI
ILI
IHI
DXOFF
DXON
NOI
OI
O
& t
t
R
OS
t
DTX
-0.2 -0.4 mA
-
- 1.0 40
µA
- - 0.7 V
2 - - V
- 300 450 nS
- 300 450 nS
- 0.8 10 mVp-p
2K - - Ω
7 7.5 9 Vp-p
200 250 300
F
nS
±90 mVpeak
240 300 nS
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Aeroflex Circuit Technology SCD4404 REV D 10/27/99 Plainview NY (516) 694-6700
Electrical Characteristics, Receiver Section
Parameter Condition Symbol Min Typ Max Unit
Differential Input Impedance f = 1MHz Z
Differential Input Voltage Range V
Input Common Mode Voltage Range
Common Mode Rejection Ratio Note 3
Note 1 V
Note 1 CMRR
Strobe Characteristics (Logic "0" Inhibits Output)
"0" Input Current VS = 0.4 V I
"1" Input Current V
= 2.7 V I
S
"0" Input Voltage V
"1" Input Voltage V
Strobe Delay (Turn-on or Turn-off) Note 1 t
Threshold Characteristics (Sinewave Input )
Internal Threshold Voltage
(Referred to the bus) Pins 6 and 11 grounded
External Threshold
Pins 6 & 11 open,
Pin 5 with a 5.9K resistor to GND,
Pin 12 with a 6.65K resistor to GND,
1MHZ Sinewave applied to point A-A"
100KHz-1MHz V
IN
IDR
ICR
IL
IH
IH
SD
TH
V
TH(EXT)
20K 100K Ω
- -
10
40
40
- - Vp-p
- -
Vp-p
dB
- -0.2 -0.4 mA
- -1.0 +40 µA
IL
- - 0.7 V
2.0 - - V
- - 150 nS
0.60 0.80 1.15 Vp-p
1.5 1.9 2.3 Vp-p
Output Characteristics, RX DATA and RX DATA
"1" State I
"0" State I
Delay (average), from differential input zero
crossings to RX DATA and RX DATA
output
50% points
= -0.4 mA V
OH
= 4 mA V
OL
Note 1 t
OH
OL
DRX
Power Data
Power Supply Currents (Power Supplies set at +15V, -15V, +5V)
I
CC
Transmitter Standby
25% duty cycle
50% duty cycle
100% duty cycle
I
I
I
I
I
I
I
EE
I
L
CC
EE
I
L
CC
EE
I
L
CC
EE
I
L
2.5 3.6 - V
- 0.35 0.5 V
- 300 450 nS
30
50
25
50
70
25
75
45
25
120
140
25
60
75
35
85
105
35
110
130
35
160
180
35
mA
Recommended Power Supply Voltage Range
+V +11.4 Volts to +15.75 Volts
-V -11.4 Volts to -15.75 Volts
Logic +4.5 Volts to +5.5 Volts
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Aeroflex Circuit Technology SCD4404 REV D 10/27/99 Plainview NY (516) 694-6700
Figure 3 - Transmitter (TX) Output Wave form Figure 4 - Transmitter (TX) Output offset
POWER DISSIPATION
WATTS
Last Bit
tf*
90%
6.5V P-P MIN
8.5V P-P MAX
10%
tr*
* Rise and fall times measured at point A-A’ in Fig 5
0 Volts
0 Volts
2.5 µsec
*Offset measured at point A-A’ in Fig 5
Figure 5 - Typical Transformer connection Figure 6 - Power Dissipation vs. Duty Cycle
70
TX DATA OUT
TX DATA
OUT
RX DATA
RX DATA IN
IN
Ω
B
B’
52.5Ω
Ctr
tap
52.5Ω
A
A’
N1:N2
Transformer turns ratios:
N1:N2 = 1:1
N1:N3 = 1:0.71
Use Aeroflex 25T1553-1
70Ω
N1:N3 for
stub
coupling
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0 10 20 30 40 50 60 70 80 90 100
(TYPICAL)
DUTY CYCLE, PERCENT
Magnified View
OUTPUT OFFSET*
OUTPUT OFFSET
*
Notes:
1. Characteristics guaranteed by design, not production tested.
2. Measured from 75KHz to 1MHz at point A-A’ with transformer self impedance of 3KΩ
minimum, power on or off.
3. Specifications apply over the temperature range of -55°C to +125°C (case temperature)
unless otherwise noted.
4. All typical values are measured at +25°C
The information contained in this data sheet is believed to be accurate; however, Aeroflex Circuit Technology.
assumes no responsibility for its use, and no licence or rights are granted by implication or otherwise in connection
therewith.
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Aeroflex Circuit Technology SCD4404 REV D 10/27/99 Plainview NY (516) 694-6700
CIRCUIT TECHNOLOGY
PLUG-IN PACKAGE
1.27 MAX
1.10
24 13
1.27
MAX
Designator
Pin 1 & ESD
0.24
MIN
0.018 DIA.
±0.002
12
1.10
0.175
MAX
0.100
Pin Connections
1. TX DATA OUT
2. TX DATA
3. TX GND (+5V)
4. +15V (TX)
5. EXT. DATA THRES
6. INT. DATA THRES
7. RX DATA OUT
8. STROBE
9. RX GND (+5V)
10. RXDATA
11. INT DATA
12. EXT DATA THRES
13. +15V (RX)
14. N.C.
15. RX DATA IN
16. RX DATA
17. GND
18. CASE GND
19. -15V (RX)
20. +5V
21. TX INHIBIT
22. TX DATA IN
23. TX DATA
24. -15V (TX)
Notes
OUT
OUT
THRES
IN
IN
1. Dimensions shown are in inches
2. Pins are equally spaced at 0.100±0.002 tolerance non-cumulative each row.
1.27 MAX
0.167 for Low Profile Flat Pack
0.200 for Std Flat Pack
FLAT PACKAGE
1.27 MAX
Designator
Pin 1 & ESD
0.400
MAX
2 sides
0.080 ±0.015
Special Note
If using the 4404 To replace the 3404
"
4440
"
3464
" 4407 " 3407
"
4467
"
3467
Please note that Pins 6 and 11 must be GROUNDED in order for the receiver to operate. These Pins were
No Connect in the 3400 Series, because the External Variable Threshold was not an option.
0.017
±0.002
0.10 Typ
0.009
±0.002
Configurations and Ordering Information
DESC No. Model No. Receiver Data level Case Specs.
5962-9174909HXC ARX4404-001-1 Normally High Plug In 1553 & Macair
5962-9174909HXA ARX4404-001-2 Normally High Plug In 1553 & Macair
5962-9174909HYC ARX4404-201-1 Normally High Flat Pack 1553 & Macair
5962-9174909HYA ARX4404-201-2 Normally High Flat Pack 1553 & Macair
5962-9174908HXC ARX4407-001-1 Normally High Plug In 1553
5962-9174908HXA ARX4407-001-2 Normally High Plug In 1553
5962-9174908HYC ARX4407-201-1 Normally High Flat Pack 1553
5962-9174908HYA ARX4407-201-2 Normally High Flat Pack 1553
To Be Assigned ARX4440 Normally Low Plug In 1553 & Macair
To Be Assigned ARX4440-FP Normally Low Flat Pack 1553 & Macair
To Be Assigned ARX4467 Normally Low Plug In 1553
To Be Assigned ARX4467-FP Normally Low Flat Pack 1553
Specifications subject to change without notice
Aeroflex Circuit Technology
35 South Service Road
Plainview New York 11803
www.aeroflex.com/act1.htm
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Telephone: (516) 694-6700
FAX: (516) 694-6715
Toll Free Inquiries: (800) 843-1553
E-Mail: sales-act@aeroflex.com
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