ACT4419D 查看數據表（PDF） - Aeroflex Corporation

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ACT4419D

Dual Variable Amplitude Transceivers for MIL-STD-1553

Aeroflex Corporation 

ACT4419D

Dual Variable Amplitude Transceivers

for MIL-STD-1553

Features

• World’s smallest and lowest standby power dual variable

amplitude transceiver 0.3" x 1.2" packages

• Lowest standby power

• Dual transceiver meets military data bus requirements,

MIL-STD-1553

• 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

• Radiation Hard to 300 KRADS total dose

• DESC SMD pending

• +5V Control line

ACT4419D Dual Transceivers

TX DATA IN

TX DATA IN

TX INHIBIT

+5 V

GROUND

DRIVER

Channel A

Channel B

SHAPING

Channel B

OUTPUT

STAGE

VCONT

TX/RX

TX/RX

REFERENCE

COMP.

RX DATA OUT

INPUT

AMP

ACTIVE

FILTER

COMP.

RX DATA OUT

STROBE

Block Diagram (without Transformer, Channel A shown)

CIRCUIT TECHNOLOGY

www.aeroflex.com

General Description

The Aeroflex Circuit Technology

model ACT4419D is a next

generation D.I. monolithic

transceiver which provides

variable amplitude in full

compliance with MIL-STD-1553

data bus requirements with the

lowest

standby

power

consumption available and one

power supply operation.

The dual channel model

ACT4419D performs the front-end

analog function of inputting and

outputting data through a

transformer to a MIL-STD-1553

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.

Variable amplitude is adjusted

with factory preset 0 – 5 Vdc

control line at 1 mA maximum

input current at 5 Volts.

Transmitter

The Transmitter section accepts

bi-phase TTL data at the input

and when coupled to the data bus

with a primary grounded center

tap 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

eroflex Circuit Technology – Data Bus Modules For The Future © SCD4419D REV G 5/10/00

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