signal protection
2.12 Vehicle Ethernet Protection Scheme
Advantage: LeiDitech provides a protection Solution based on 100BASE-T1 and 1000BASE-T1 development alliance standards, designed to protect against ESD and other transients without compromising the in-vehicle Ethernet system. The ESD device used in this Solution adopts silicon technology, offering higher reliability with a dual-diode capacitance value of 3pF, ensuring signal integrity.
The left-side transceiver contains the PHY along with some basic filtering components and on-chip ESD. CMC is used to reduce common mode. The ESD device PESD2ETH100-T is located near the RJ45 connector, where high ESD currents will be directed to GND, protecting the backend PCB, PHY, and other components.
