Maxim's OFDM-Based PLC Modem in the 10kHz to 490kHz Range for Power Line Communications

Maxim’s MAX2990 combines the physical (PHY) and media access control (MAC) layers in a single chip that also integrates Maxim's 16-bit RISC MAXQ microcontroller. The MAX2990 includes 32kB of flash memory to run the MAC code and user-defined custom applications, plus 8kB of SRAM for data memory. Additionally, the MAX2990 supports UART, SPI, and I^2C serial interfaces for glueless communication between the power line and other devices on the network.

This PLC modem employs advanced broadband-communication techniques to deliver cost-effective, two-way data communication over AC and DC power lines at speeds up to 100kbps. Maxim claims that by using existing power lines, it reduces the need for external cables to interconnect between network nodes. Supporting a wide, 10kHz to 490kHz frequency range, the MAX2990 complies with international power-line signaling regulations, including CENELEC, FCC, and ARIB. The MAX2990 is available in a 64-pin LQFP package and is fully specified over the -40 degrees Celsius to +85 degrees Celsius extended temperature range.