ARX4418 & ARX4417 (3/05)

Standard Products
ARX4418 & ARX4417 Variable Amplitude Transceiver
for MACAIR (A3818, A4905, A5232, A5690), MIL-STD-1553
& SAE-AS15531
www.aeroflex.com/Avionics
March 31, 2005
FEATURES
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ARX4418 Transceiver meets Macair (A3818, A4905, A5232 and A5690) & MIL-STD-1553A/B
ARX4417 Transceiver meets MIL-STD-1553 and SAE-AS15531
Bipolar supply ±15V to ±12V, Logic supply +5VDC
Variable TX amplitude
Variable receiver threshold capability
Monolithic construction
Voltage source output for higher bus drive power
Designed for commercial, industrial and aerospace applications
MIL-PRF-38534 compliant devices available
Aeroflex-Plainview is a Class H & K MIL-PRF-38534 manufacturer
DESC SMD 5962-9208503
GENERAL DESCRIPTION
The Aeroflex Plainview transceiver model ARX4418 and is a new generation monolithic transceiver which provide full compliance
with Macair and MIL-STD-1553 data bus requirements while providing variable amplitude control.
The model ARX4418 and ARX4417 performs the front-end analog function of inputting and outputting data through a transformer
to a MIL-STD-1553 or Macair data bus.
The ARX4418 can be considered a "Universal" Transceiver in that it is compatible with Macair (A-3818, A-4905, A-5232 and
A-5690), MIL-STD-1553A/B and SAE-AS1553. The ARX4417 is compatible with MIL-STD-1553A/B and SAE-AS15531.
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 ARX4418 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 low duty cycles.
An optional receiver input threshold adjustment can be accomplished by the use of the ''External Threshold" terminals or by the use
of the "Set Internal Threshold" terminals. Variable amplitude is adjusted with 0–10 VDC on the control pin.
TRANSMITTER
The Transmitter section accepts bi-phase TTL data at the input and when coupled to the data bus with a 1:1 transformer the data bus
signal produced is 7.0 Volts minimum P-P at point 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 Transmitter Logic Waveforms - Figure 1).
The transmitter utilizes an active filter to suppress harmonics above 1 MHz 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.
The transceiver utilizes an active filter to suppress harmonics above 1MHz. The Transmitter may be safely operated at 100% duty
cycle for an indefinite period into a short circuited 1553 bus.
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 Receiver
Logic Waveforms - Figure 2).
The internal threshold is nominally set to detect data bus signals exceeding 1.05 Vp-p and reject signals less than 0.6 Vp-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 +5VDC is recommended.
SCD4418 Rev C
TX DATA OUT
TX DATA IN
DRIVER
OUTPUT
STAGE
SHAPING
TX DATA IN
TX INHIBIT
AMP CONTROL
V+
GND
CASE GND
EXT THRESHOLD
DATA
DATA
SET INTERNAL
THRESHOLD
COMP.
DATA
EXT. THRESHOLD
DATA
+5V
-12V or -15V
RX DATA IN
RX DATA IN
TX DATA OUT
RX DATA OUT
V-
ACTIVE
FILTER
INPUT
AMP
COMP.
RX DATA OUT
+12V or +15V
STROBE
BLOCK DIAGRAM (WITHOUT TRANSFORMER
DATA IN
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 inputs must be complementary waveforms or 50% duty cycle average, with no delays between them.
3. DATA and DATA must be in the same state during off time (both high or low).
FIGURE 1 – TRANSMITTER LOGIC WAVEFORMS IDEALIZED
LINE TO LINE
INPUT
DATA OUT
DATA OUT
Note overlap
Note: Waveforms shown are for normally low devices. For normally high receiver output
level devices, the receiver outputs are swapped as shown by the dashed lines
FIGURE 2 – RECEIVER LOGIC WAVEFORMS IDEALIZED
SCD4418 Rev C
2
ABSOLUTE MAXIMUM RATINGS
Operating Case Temperature
-55°C to +125°C
Storage Case Temperature
-65°C to +150°C
Power Supply Voltages
+5VDC to +7VDC
±15VDC to ±18VDC
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
2.4 Watts
Power Dissipation for hottest die, (100% duty cycle)
600 mW
Maximum junction to case temperature rise for the hottest
device (100 % duty cycle)
36°C
Junction-Case, Thermal Resistance for hottest device
60°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 = 0.4V
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
"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
Note 1
tDXOFF
-
400
500
nS
Delay from TX inhibit, (1➝0) to active output
Note 1
tDXON
-
400
500
nS
-
VNOI
-
0.8
10
mVp-p
Note 2
ZOI
2K
-
-
Ω
RL = 140 Ω
VO
28
30
36
V p-p
-
tR
200
250
300
nS
Output offset at point A-A’ on Figure 5, 2.5 µS after
midpoint crossing of the parity bit of the last word of a
660 µS message
RL = 35 Ω
VOS
-
-
±90
mV peak
Delay from 50% point of TX DATA or TX DATA input
to zero crossing of differential signal. (Note 1)
ARX4418
tDTX
-
330
450
nS
-
240
360
nS
INHIBIT CHARACTERISTICS
Differential Output Noise, inhibit mode
Differential Output Impedance (inhibited)
OUTPUT CHARACTERISTICS
Differential output level at point B–B’ Figure 5,
Vcont = 10 Vdc, See Figure 6 for control voltage versus
output level
Rise and fall times
(10% to 90% of p-p output)
ARX4417
SCD4418 Rev C
3
ELECTRICAL CHARACTERISTICS – RECEIVER SECTION
Parameter
Condition
Symbol
Min
Typ
Max
Unit
f = 1MHz
ZIN
10K
-
-
Ω
-
VIDR
-
-
40
Vp-p
Input Common Mode Voltage Range
Note 1
VICR
10
-
-
Vp-p
Common Mode Rejection Ratio
Note 1
CMRR
40
-
-
dB
Differential Input Impedance
Differential Input Voltage Range
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
Note 1
tSD
-
-
150
nS
VTH
0.60
0.8
1.05
V p-p
Strobe Delay (Turn-on or Turn-off)
THRESHOLD CHARACTERISTICS (SINEWAVE INPUT )
Internal Threshold Voltage
(referred to the bus) pins 6 and 11 grounded
100KHz -1MHz
OUTPUT CHARACTERISTICS, RX DATA AND RX DATA
"1" State
"0" State
Delay (average), from differential input zero
crossings to RX DATA and RX DATA output 50%
points
IOH = -0.4 mA
VOH
2.5
3.6
-
V
IOL = 4 mA
VOL
-
0.35
0.5
V
Note 1
tDRX
-
300
450
nS
POWER DATA
POWER SUPPLY CURRENTS (POWER SUPPLIES SET AT +15V, -15V, +5V)
Transmitter Standby
ICC
IEE
IL
30
50
25
60
75
35
25% duty cycle
ICC
IEE
IL
50
70
25
85
105
35
50% duty cycle
ICC
IEE
IL
75
45
25
110
130
35
100% duty cycle
ICC
IEE
IL
120
140
25
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
Notes:1.
2.
3.
4.
+4.5 Volts to +5.5 Volts
Characteristics guaranteed by design, not production tested.
Power on or off, measured from 75KHz to 1MHz at point A-A' and transformer self impedance of 3KΩ minimum at 1MHz.
Specifications apply over the temperature range of -55°C to +125°C (Case Temperature) unless otherwise noted.
All typical values are measured at +25°C.
SCD4418 Rev C
4
tf *
LAST BIT
90%
Magnified View
OUTPUT OFFSET*
6.5V P-P MIN
8.5V P-P MAX
0 volts
0 Volts
OUTPUT OFFSET*
10%
2.5 µsec
tr *
*Offset measured at point A-A’ 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
VP-P @ B–B'
30
70Ω
TYPICAL
27
70Ω
TX DATA OUT
OUTPUT AMPLITUDE
24
52.5Ω
N1:N2
B
A
N1:N3 for
stub
coupling
Ctr
tap
B’
21
18
15
12
A’
Slope = 3VP-P/Vdc
9
6
TX DATA OUT
3
52.5Ω
RX DATA IN
RX DATA IN
0
Transformer turns ratios:
N1:N2 = 1:1
N1:N3 = 1:0.71
Use Aeroflex 25T1553-1
0
1
2
3
4
POWER DISSIPATION
WATTS
7
8
9
Vdc
10
FIGURE 6 – TRANSMITTER (TX) OUTPUT
AMPLITUDE vs. CONTROL VOLTAGE
4.0
3.5
3.0
TYPICAL
2.5
2.0
1.5
1.0
0.5
0
6
CONTROL VOLTAGE
FIGURE 5 – TYPICAL TRNSFORMER
CONNECTION
0
5
10
20
30
40
50
60
70
80
90 100
DUTY CYCLE, PERCENT
FIGURE 7 – TYPICAL POWER DISSIPATION
vs. DUTY CYCLE
SCD4418 Rev C
5
CONFIGURATIONS AND ORDERING INFORMATION *
Model No.
DSCC No.
Receiver Data level
ARX4418
5962-9208503HXX
Normally Low
ARX4418-FP
5962-9208503HYX
ARX4418-LPFP
-
ARX4417
Normally High
Configuration
Specs.
Plug In
1553 & Macair
Flat Pack
1553 & Macair
Low Profile Flat Pack
1553 & Macair
Plug In
1553
ARX4417-FP
Flat Pack
ARX4417-LPFP
Low Profile Flat Pack
* Not for new designs. See ACT4418N Series.
PACKAGE CONFIGURATION OUTLINE
PLUG-IN PACKAGE
1.27 MAX
1.10
24
13
1.27
MAX
1.10
1
12
0.175
MAX
0.24
MIN
0.018 DIA.
±0.002
FLAT PACKAGE
Pin Function
0.100
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
TX DATA OUT
TX DATA OUT
TX GND (+5)
+15V (TX)
EXT. DATA THRES
INT. DATA THRES
RX DATA OUT
STROBE
RX GND (+5V)
RXDATA OUT
INT. DATA THRES
EXT. DATA THRES
+15V (RX)
AMP CONTROL
RX DATA IN
RX DATA IN
GND
CASE GND
-15V (RX)
+5V
TX INHIBIT
TX DATA IN
TX DATA IN
-15V(TX)
1.27 MAX
0.017
±0.002
Pin 1 & ESD
Designator
1.27
MAX
0.10 Typ
0.400
MIN
2 sides
0.009
±0.002
0.167 for Low Profile Flat Pack
0.200 for Std Flat Pack
0.080
±0.015
Notes
1. Dimensions shown are in inches.
2. Pins are equally spaced at 0.100±0.002 tolerance, non-cumulative, each row.
PLAINVIEW, NEW YORK
Toll Free: 800-THE-1553
Fax: 516-694-6715
INTERNATIONAL
Tel: 805-778-9229
Fax: 805-778-1980
NORTHEAST
Tel: 603-888-3975
Fax: 603-888-4585
SE AND MID-ATLANTIC
Tel: 321-951-4164
Fax: 321-951-4254
WEST COAST
Tel: 949-362-2260
Fax: 949-362-2266
CENTRAL
Tel: 719-594-8017
Fax: 719-594-8468
www.aeroflex.com
[email protected]
Aeroflex Microelectronic Solutions reserves the right to
change at any time without notice the specifications, design,
function, or form of its products described herein. All
parameters must be validated for each customer's application
by engineering. No liability is assumed as a result of use of
this product. No patent licenses are implied.
Our passion for performance is defined by three
attributes represented by these three icons:
solution-minded, performance-driven and customer-focused
SCD4418 Rev C
6
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