ARX4404 Aeroflex Circuit Technology, ARX4404 Datasheet

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ARX4404

Manufacturer Part Number
ARX4404
Description
Arx4404 & Arx4407 Transceiver For Macair A3818, A4905, A5232, A5690 , Mil-std-1553 & Sae-as15531
Manufacturer
Aeroflex Circuit Technology
Datasheet
Standard Products
ARX4404 & ARX4407 Transceiver
www.aeroflex.com/Avionics
April 5, 2005
FEATURES
GENERAL DESCRIPTION
The Aeroflex Plainview transceiver model ARX4404 and is a new generation monolithic transceiver which provide full compliance
with Macair and MIL-STD-1553 data bus requirements. The model ARX4404 and ARX4407 performs 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 Macair (A-3818, A-4905, A-5232 and
A-5690), MIL-STD-1553A/B and SAE-AS1553. The ARX4407 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 ARX4404 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 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 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 3 or 4 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 +5V
for MACAIR (A3818, A4905, A5232, A5690), MIL-STD-1553
& SAE-AS15531
ARX4404 Transceiver meets Macair (A3818, A4905, A5232 and A5690) & MIL-STD-1553A/B
ARX4407 Transceiver meets MIL-STD-1553 and SAE-AS15531
Bipolar supply ±15V to ±12V, Logic supply +5V
Direct replacement for CT3231 and CT3232
Variable receiver threshold capability
Monolithic construction
Voltage source output for higher bus drive power
Low receiver data level versions: ARX4440 and ARX4467
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 5962-91749
SCD4404 Rev F
DC
DC
is recommended.

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ARX4404 Summary of contents

Page 1

... Macair and MIL-STD-1553 data bus requirements. The model ARX4404 and ARX4407 performs 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 Macair (A-3818, A-4905, A-5232 and A-5690), MIL-STD-1553A/B and SAE-AS1553. The ARX4407 is compatible with MIL-STD-1553A/B and SAE-AS15531. ...

Page 2

TX DATA IN TX DATA IN TX INHIBIT GND CASE GND EXT THRESHOLD DATA DATA SET INTERNAL DATA THRESHOLD EXT. THRESHOLD DATA +5V -12V or -15V RX DATA IN RX DATA IN +12V or +15V STROBE BLOCK DIAGRAM (WITHOUT TRANSFORMER ...

Page 3

... Note 1 t DXOFF Note 1 t DXON - V Note Ω ARX4404 t R ARX4407 = 35 Ω ARX4404 t ARX4407 3 -55°C to +125°C -65°C to +150°C to ±18V + +5.5 V ±40 V ±10V 300 mA 2.4 Watts 600 mW 36°C 60°C/W Min Typ Max - -0 ...

Page 4

ELECTRICAL CHARACTERISTICS – RECEIVER SECTION Parameter Differential Input Impedance Differential Input Voltage Range Input Common Mode Voltage Range Common Mode Rejection Ratio STROBE CHARACTERISTICS (LOGIC "0" INHIBITS OUTPUT) "0" Input Current "1" Input Current "0" Input Voltage "1" Input Voltage ...

Page 5

P-P MIN 6.5V P-P MIN 8.5V P-P MAX 8.5V P-P MAX 10% 10 Rise and fall times measured at point A-A’ in Figure 5 FIGURE 3 – TRANSMITTER (TX) OUTPUT ...

Page 6

... 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. SCD4404 Rev F Receiver Data level Normally High Normally Low ARX4404 To replace the ARX3404 ARX4440 " ARX3464 ARX4407 " ARX3407 ARX4467 " ...

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