QJ556X series communication chip is a broadband power line carrier communication chip with OFDM modulation and demodulation technology, which meets the physical layer protocol standards of GDW-16 and HomePlugAV. QJ556XD adopts advanced digital-analog mixed design technology, which provides high speed, high reliability and high sensitivity power line data communication, and it can realize various types of data transmission and remote meter reading applications.

QJ558X series communication chip is a kind of new generation broadband power line carrier communication chip with multi-functions, high-performance and low-power consumption, adopting advanced digital-analog mixed design technology to meet the dual-mode communication standards of the State Grid, and it also has the function of HPLC and HRF communication.