A versatile low-power half-duplex FSK transceiver for power line communication network applications is presented. The proposed Power-Line Modem (PLM) satisfies the requirement of several protocols for power-line communications, The device operation is fully controlled and programmed through an infernal 24bit register. It operates from a single 9V supply (5V is possible if no power delivery is required). During transmission, the PLM is able to deliver 1W on 16 Omega, while during reception if dissipates only 3.5mA. The PLM is realized in a 0.6 mum BCD technology.