Our automotive gigabit plastic optical fiber Ethernet solution is built on an automotive-grade GEPOF transceiver designed to meet all of the demanding requirements of the automotive market. Plastic optical fiber is inherently immune to and robust against electromagnetic fields. Together with its intrinsic galvanic isolation and mechanical robustness, this makes optical Ethernet an ideal choice for current and future in-vehicle network infrastructure.
Key Points
- Outstanding EMI and EMS performance
- Lightweight plastic optical fiber cabling
- Communication distance up to 120m at 100M bandwidth
- Communication distance up to 40m at 1000M bandwidth
- Galvanic isolation, low noise and low cost
- Withstands harsh environments including vibration, dirt and humidity
Solution Overview
In the gateway, the MCU configures the switch over SPI and exchanges data with it over RMII; the switch then forwards the Ethernet traffic to a plastic optical fiber media converter module. This module, made up of an FOT (fiber optic transceiver) and an optical PHY, performs the conversion between optical and digital signals. At a child node, only the plastic optical fiber media converter module and an MCU are required to achieve point-to-point POF Ethernet communication.
Core Components
- Automotive MCU: S32K148 (NXP)
- Automotive MCU: SPC5748 (NXP)
- Switch: SJA1105 (NXP)
- Optical PHY: KD1053D (KDPOF)
Applications
BMS galvanic isolation, safety backbone networks, smart antenna modules, infotainment systems, low-speed EMC-critical links, in-vehicle communication systems, autonomous driving safety redundancy, ADAS sensor interconnect
Functional Block Diagram
