ACT4404N datasheet, PDF - EEWORLD Datasheet

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ACT4404N: DescriptionSingle Transceiver for MACAIR (A3818, A4905, A5232, A5690), MIL-STD-1553 & SAE-AS15531; CategoryAnalog mixed-signal IC Drivers and interfaces; File Size156KB，9 Pages; ManufacturerAeroflex; Websitehttp://www.aeroflex.com/

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ACT4404N Overview

Single Transceiver for MACAIR (A3818, A4905, A5232, A5690), MIL-STD-1553 & SAE-AS15531

ACT4404N Parametric

Parameter Name	Attribute value
Maker	Aeroflex
package instruction	,
Reach Compliance Code	unknow

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Standard Products

ACT4404N Single Transceiver Series

www.aeroflex.com/Avionics

December 18, 2007

for MACAIR (A3818, A4905, A5232, A5690), MIL-STD-1553

& SAE-AS15531

FEATURES

❑

ACT4404N & ACT4440N transceivers meets MIL-STD-1553A & B, Macair A3818, A4905, A5232 and

A5690 specs

ACT4407N & ACT4467N transceivers meets MIL-STD-1553A & B specs only

Bipolar supply ±15V to ±12V, logic supply +5V

Monolithic construction

ACT4404N is a direct replacement for the CT3232M and the ACT4407N is direct replacement for the CT3231

Voltage source output for higher bus drive power

Variable receiver threshold capability

Designed for commercial, industrial and aerospace applications

MIL-PRF-38534 compliant devices available

Aeroflex-Plainview is a Class H & K MIL-PRF-38534 manufacturer

GENERAL DESCRIPTION

The Aeroflex-Plainview ACT4404N series are a new generation monolithic transceiver which provide full compliance with

Macair and MIL-STD-1553 data bus requirements.

The model ACT4404N series performs the front-end analog function of inputting and outputting data through a transformer to a

MIL-STD-1553 or Macair data bus. The ACT4404N and ACT4440N 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).

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 ACT4404N and ACT4440N 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 ''External 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 typical P-P at point A-A’ (See Figure 3 or 4). 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.

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.

SCD4404N Rev D

ACT4404N Related Products

	ACT4404N	ACT4404N_07	ACT4404N-2	ACT4467N	ACT4407N
Description	Single Transceiver for MACAIR (A3818, A4905, A5232, A5690), MIL-STD-1553 & SAE-AS15531	Single Transceiver for MACAIR (A3818, A4905, A5232, A5690), MIL-STD-1553 & SAE-AS15531	Single Transceiver for MACAIR (A3818, A4905, A5232, A5690), MIL-STD-1553 & SAE-AS15531	Single Transceiver for MACAIR (A3818, A4905, A5232, A5690), MIL-STD-1553 & SAE-AS15531	Single Transceiver for MACAIR (A3818, A4905, A5232, A5690), MIL-STD-1553 & SAE-AS15531

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