ACT4433 Aeroflex Circuit Technology, ACT4433 Datasheet

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ACT4433

Manufacturer Part Number

ACT4433

Description

Act 4433 Dual Transceiver For Mil-std-1553/1760

Manufacturer

Aeroflex Circuit Technology

Datasheet

1.ACT4433.pdf (7 pages)

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Features

• +5 / ±12 Volt Supply Operation

• Low Power Dissipation

• Outstanding MIL-STD-1553 performance

• Radiation Hard Dielectric Isolation Monolithic

• Input and Output TTL Compatible Design

• Processed and Screened to MIL-STD-883 Specs

• MIL-PRF-38534 Compliant Devices Available

RX STROBE IN

TX INHIBIT IN

TX DATA IN

Construction for Severe Environments

eroflex Circuit T

RX DATA IN

RX DATA IN

TX DATA IN

+15V (V

Smaller Case Outline then ACT4489D

-15V (V

+5V (V

GND1

GND2

GND3

CASE

CC

EE

L

)

)

)

Block Diagram (Without Transformer)

AMPLIFIER

ACT 4433 DUAL TRANSCEIVER

DRIVER

INPUT

echnology

FOR MIL-STD-1553/1760

REFERENCE

– Data Bus Modules For The Future © SCD4433D REV B 1/30/98

ACTIVE

FILTER

ACTIVE

FILTER

OUTPUT

STAGE

COMP.

COMP.

TX DATA OUT

TX DATA OUT

RX DATA OUT

RX DATA OUT

ACT

monolithic

which provide full compliance to

MIL-STD-1553A/B and 1760

quirements in a smaller package

with lower pin count then the

ACT4489D, for those designs with

less board space.

the front-end analog function of

inputting

through

MIL-STD-1553 data bus.

particular attention to active filter

performance. This results in low bit

and word error rate with superior

waveform purity and minimal zero

crossover

transmitter electrical and thermal

design provides low internal power

dissipation and heat rise at high as

well as low duty cycles.

Transmitter:

bi-phase TTL data at the input and

when coupled to the data bus with a

1:1 ratio transformer, isolated on

the data bus side with two 52.5

Ohm fault isolation resistors, and

loaded

terminations, the data bus signal is

typically 7 Volts P-P at point 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

General Description

The Aeroflex Circuit Technology

The ACT 4433 series performs

Design of this transceiver reflects

The Transmitter section accepts

www.aeroflex.com/act1.htm

4433 is a next generation

CIRCUIT TECHNOLOGY

a

by

and

distortion.

transformer

transceiver

two

outputting

70

Efficient

to

design

Ohm

data

re-

the

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