China's self-sufficiency rate for automotive Ethernet physical layer chips is low, and the market is dominated by foreign companies

China's in-vehicle Ethernet physical layer chip self-sufficiency rate is very low, mainly relying on overseas imports. The world's leading Ethernet physical layer chip suppliers are mainly concentrated overseas, accounting for 91% of the market share. These suppliers apply echo cancellation technology of 2 core wires and 1 twisted pair in the field of smart cockpit and assisted driving.