Utilizing Renesas’ third generation of market leading power line communication (PLC) modem solutions, this winning combination illustrates how PLC can be used effectively to transmit/receive voice communication over low voltage power distribution lines. The microphone and speaker are controlled by an RX65x MCU which in turn communicates to the CPX3 modem SoC and the ISL15110 PLC line driver. The ISL8117 is used to convert an unregulated rectified input voltage to produce a 12V bus required for the line driver. The ISL85415 converts 12V to 3.3V to power the RX65x MCU and the CPX3 modem SoC. An ISL9008 LDO is utilized to create a very low noise power rail for the codec. The ISL28430 is a quad op-amp which is used for microphone amplification and output level indication.
Renesas' complementary product portfolios of Analog + Power + Embedded Processing + Connectivity work together to deliver comprehensive solutions. Our product experts have developed "Winning Combinations," compelling product combinations that help our customers accelerate their designs and get to market faster.