MIL-STD-1553 SINGLE & DUAL CHANNEL 5-VOLT TRANSCEIVERS FC1553 9 SERIES

Category: CMAC MicroTechnology, Electronics, Telecom ICS

Overview

The CMAC FC15539 datasheet details a hybrid data bus transmitter and receiver specifically designed for military applications. It operates on a single 5V supply and complies with two crucial military standards: MIL-STD-1553B for the data bus interfaces and MIL-STD-883, along with BS950 (CECC 63000) for electronic component screening. This hybrid is particularly suitable for defense and aerospace systems requiring secure and reliable communication.

Key Features

This transceiver series boasts several significant features enhancing its military-grade capabilities:

Single Rail Operation: The transceiver functions efficiently with a singular 5V power supply.
Low Power Dissipation: The design prioritizes energy efficiency, minimizing power use and heat generation.
Receiver Output Logic Options: The output logic can be tailored for compatibility with various encoder/decoder systems.
Third-Order Balanced Receiver Input Filtering: Sophisticated filtering ensures robust signal reception amidst noise.
Enhanced Input Logic Tracking and Fault Protection: The input logic is designed to endure and protect against electrical faults seamlessly.
Short Circuit Protection of Transmitter Outputs: The transceiver’s outputs are fortified against short circuits to prevent damage.

Functional Design

The functional block schematic illustrates several integral components:

Balanced Filter & Signal Timing: These elements ensure signal integrity and proper synchronization.
Balanced Comparator Stage & Output Logic Drivers: These stages are crucial for accurate signal comparison and subsequent output driving.
Inhibit Generator & Pulse Shaping: These features control the transmission flow and signal form for optimal communication.
Output Current Drivers & Pulse Overduration Timer: These provide robust output signals and manage pulse durations.
Input Logic Decoder: This decoder interprets incoming signals to be processed by the receiver.

Pin Configurations

Specific pin numbers are assigned for singular and dual-channel models. For single-channel implementation, no connection is required to pins 6, 11, 12, 13, 14, 17, 19, and 24. Correspondingly, in dual channel models, pins 3, 4, 12, 13, 18, 19, 23, 28, and 32 remain unconnected. Moreover, the ‘GND’ and ‘CASE’ pins must be connected externally, ensuring proper grounding and case integrity for the transceiver.

Applications

This datasheet targets developers of defense and aerospace systems, emphasizing the transceiver’s reliability under the stringent conditions of military service.