ACT4468DFI datasheet(1/6 Pages) AEROFLEX

Teilenummer	ACT4468DFI

Bauteilbeschribung	ACT4468D Dual Transceivers for MIL-STD-1553

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Hersteller	AEROFLEX [Aeroflex Circuit Technology]

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CIRCUIT TECHNOLOGY

www.aeroflex.com

eroflex Circuit T

echnology – Data Bus Modules For The Future © SCD4468D REV B 5/25/00

Features

• World’s smallest and lowest standby power dual

transceiver 0.3" x 1" packages

• Dual transceiver meets military data bus

requirements, MIL-STD-1553 and MIL-STD-1760

• Low power dissipation at full output power

• Single +5V power supply

• Current source output

• Monolithic construction using dielectrically

isolated(D.I.)

• Processed and screened to MIL-STD-883 specs

• DESC SMD# 5962–92061 Pending

General Description

The

Aeroflex

Circuit

Technology

Model

ACT4468D

is

a

which provide full compliance with

MIL-STD-1553/1760 and data bus

requirements

in

the

smallest

packages with the lowest standby

power consumption and one power

supply operation.

The dual channel Model ACT4468D

perform the front-end analog function

of

inputting

and

outputting

data

through

a

transformer

to

a

MIL-STD-1553/1760 data bus.

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.

Efficient

transmitter

electrical

and

thermal

design provides low internal power

dissipation and heat rise at high as

well as low duty cycles.

Each channel of the dual transceiver

is completely separate from the other

and fully independent. This includes

power leads as well as signal lines.

Hence,

each

channel

may

be

connected to a different data bus with

no interaction.

Transmitter:

The

Transmitter

section

accepts

bi-phase TTL data at the input and

when coupled to the data bus with a

1:2.5 transformer, isolated on the

data 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 7.5Volts nominal P-P at

A-A’. (See Figure 5.) When both

DATA and DATA inputs are held low or

high, the transmitter output becomes

Block Diagram (without Transformer), 1/2 of unit shown

ACT4468D Dual Transceiver

SHAPING

OUTPUT

STAGE

COMP.

REFERENCE

ACTIVE

FILTER

INPUT

AMP

DRIVER

TX DATA IN

TX INHIBIT

+5 V

STROBE

TX/RX

RX DATA OUT

GROUND

ACT4468D

Dual Transceivers for MIL-STD-1553

Ähnliche Beschreibung - ACT4468DFI

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