Communication chip used for power line carrier

The invention provides a communication chip used for a power line carrier, and belongs to the technical field of the power line carrier. By adopting the DS-FSK, modulation is carried out. The implementation method comprises the steps that pseudo code elements are each inserted into the front and the back of one pseudo code cycle (31-bit pseudo codes) respectively, the pseudo code elements are used for regulating of the bit synchronization error, and an M sequence is extended as 33-bit spreading codes during sending; after spread spectrum is carried out on a signal '0', the sequence is as follow: (1) 0000010011000111100101011011101 (0); after the spread spectrum is carried out on a signal '1', the sequence is as follow: (0) 1111101100111000011010100100010 (1); a baseband signal is in congruence with the spreading codes, or the signal is output after calculating is carried out. According to the communication chip used for the power line carrier, reliable data exchanging between electric terminal equipment based on the power line communication network is achieved, the relaying transmitting agreement with high communication reliability and efficient frame is provided, the perfect network data communication protocol stack is provided, the communication capacity is stronger, and the communication reliability is higher.