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13 TJA110X PHYS FOR AUTOMOTIVE ETHERNET OM14500/TJA110X EVALUATION BOARDS LEARN MORE u LEARN MORE u models. Even FlexRay, at 10MB/s, is significantly slower than the speed required for most autonomous cars. Automotive Ethernet offers a leap in bandwidth to handle enormous amounts of data compared to the common and established IT enterprise blue cable, but automotive-grade Ethernet has its requirements. Compact Cable Weighs Less for Higher Efficiency Lighter cars are more efficient, and the increasing number of electronics in each car requires more cables, which adds to its mass. Automotive Ethernet, following the IEEE 100BASE-T1 standard, is compact and uses lightweight single Unshielded Twisted Pair (UTP) cable capable of running multiple electronics applications over a single cable. Auto-grade UTP cable also means that it meets the higher temperature requirements. Additionally, Ethernet switches handle routing tasks and data when automotive Ethernet is used as the vehicle's distributed network's backbone, further lowering the alternative dedicated cables' weight and cost. High-Speed Network Supports Bidirectional, Real-Time Communications Whether you're downloading a critical safety update from the cloud, passing messages from the anti-lock brakes (ABS) and the ABS controller, or streaming movies, automotive Ethernet scales to your needs. Sensor data, commands, and information can be prioritized based on type. Safety alert systems, for example, can be prioritized over streaming infotainment. Ethernet Switches Enable Faster In-Vehicle Networks NXP's five-port automotive Gigabit Ethernet switch SJA1105x series targets automotive applications such as a gateway, infotainment, and advanced driver-assistance systems (ADAS) fusion boxes with an array of configurable ports, advanced security features, and a comprehensive, production- grade development ecosystem. Each switch's audio-video bridging (AVB) support feature fully leverages infotainment and advanced driver assistance systems. Ethernet PHY developed under an ISO 26262 Functional Safety process: The IEEE 802.3bw (100BASE-T1) compliant TJA1101 Ethernet PHY transceiver provides 100Mb/s transmit and receive capability over unshielded twisted pair (UTP) cables to withstand the most demanding automotive applications while still maintaining low-power consumption and system costs. The TJA1101 PHY transceiver provides robust, automotive-grade signal quality with a bit error rate (BER) of at least 1E -10 or less. Optimized for capacitive signal coupling to the UTP lines, it supports a cable length of at least 15m. A common-mode choke (CMC) is typically inserted into the signal path to comply with automotive EMC requirements. Communication with the media access control (MAC) unit can be realized via the media-independent interface (MII) or the reduced media-independent interface (RMII). NXP auto Ethernet high-bandwidth capability expands to multi-gigabit speeds: Ethernet solutions must be automotive grade and of a size and mass that make implementation feasible. This led NXP to expand NXP's rich in-vehicle networking portfolio. NXP acquired OmniPHY, a pioneer in high-speed automotive Ethernet IP and automotive qualified IP for 100BASE-T1 and 1000BASE-T1 standards. OmniPHY interface IP and communication technology and NXP's automotive portfolio forms a one-stop-shop for automotive Ethernet. The companies' technology synergies will center on 1.25–28Gbps PHY designs and 100- and 1000BASE-T1 Ethernet in advanced processes. Automotive Ethernet will connect the vehicle's electronics systems and vehicles to vehicles (V2V), making them an essential part of the Internet of Things (IoT). It supports the high bandwidth and real-time processing required for today's automotive infotainment and advanced safety systems, providing a platform for developing tomorrow's genuinely autonomous driving. ■ Whether you're downloading a critical safety update from the cloud, passing messages from the anti-lock brakes (ABS) and the ABS controller, or streaming movies, automotive Ethernet scales to your needs. ❝ ❞