4444

Features:

Transceiver meets MIL-STD-1553A & B, Macair A3818, A4905, A5232 and A5690 specs
Bipolar Supply ±15V to ±12V, Logic Supply +5V
Replacement for function of CT3232 & ACT4404 in new designs
Voltage source output
Monolithic construction
Aeroflex is a Class H & K MIL-PRF-38534 Manufacturer
Miniature Chipscale Package Bumped Chip Carrier(TM) (BCC++)


Specifications

Operating Case Temperature	-40°C to +85°C
Storage Case Temperature	-65°C to +150°C
Power Supply Voltages	±16 V	+7 V
Logic Input Voltage	-0.3 V to +5.5 V
Receiver Differential Input	±40 V
Receiver Input Voltage (Common Mode)	±10V
Driver Peak Output Current	150 mA
Total Package Power Dissipation over the Full Operating Case Temperature Range *	3.25 Watts
Maximum Junction to Case Temperature	3.25°C
Junction-Case, Thermal Resistance	1°C/W

Description

The Aeroflex Laboratories transceiver model  ACT4444 is a  monolithic transceiver which provides full compliance with Macair and MIL-STD-1553 data bus requirements. The model ACT4444 performs the front-end analog function of inputting and outputting data through a transformer to a MIL-STD-1553 or Macair data bus with a few external components.

The ACT4444 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 ACT4444 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 ACT4444 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 of ACT4444 provides low internal power dissipation and heat rise at high and well as low duty cycles.

An optional receiver input threshold adjustment of ACT4444 can be accomplished by the use of the "External Threshold"terminals.