OM13313: ASK Power Line Modem, 600 Baud (Typ)

The NXP TDA5051A is a complete Amplitude Shift Keying (ASK) modem for transmitting and receiving digital signals on standard power line or any two-wire AC or DC network. It is a cost-effective solution that transmits at a rate of 600 baud (typical) and 1200 baud (maximum), operates from a single 5 V supply, and enables easy connection to standard microcontrollers, including NXP's LPC11xx series of low power ARM-based microcontrollers.

The IC complies with EN50065-1, EN50065-2 and SC105A, and requires only a few external components for full operation. Its fully-digital transmission and reception circuitry provides efficient bidirectional communication of low baud rate data signals between a control unit and lighting fixture, and one or more household appliances connected to the mains.

This application note discusses the requirements, filtering circuits and interface networks necessary to be fully compliant and to obtain robust, reliable operation in a power line communication network.