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The Broadcom BCM89890 is a high-performance, multi-gigabit Automotive Ethernet PHY transceiver and the industry's first to fully comply with the IEEE 802.3ch standard. It is designed to handle the massive data requirements of modern vehicles, such as autonomous driving sensors (Lidar/Radar) and high-resolution infotainment systems. ## Core Specifications Data Rates: Supports 2.5 Gbps, 5 Gbps, and 10 Gbps speeds.
Before the BCM89890, automotive Ethernet was largely capped at 1 Gbps. By moving to 10 Gbps over a single pair of wires, Broadcom has allowed manufacturers to reduce cabling weight and complexity while significantly increasing the "IQ" of the vehicle. Its combination of high throughput, low latency, and hardware-based security makes it a foundational component for the next generation of intelligent transportation. bcm89890
Technical Report: BCM89890 Multigigabit Automotive Ethernet PHY The Broadcom BCM89890 is a high-performance
2. EMI and EMC Performance This is the standout feature. Automotive environments are electrically noisy; between the ignition system, electric motors, and various radios, the airwaves are crowded. The BCM89890 features an integrated DSP (Digital Signal Processor) and advanced equalization algorithms. This allows it to maintain a clean link even in the presence of significant crosstalk or external noise. It meets the rigorous Open Alliance and IEEE 802.3 standards for electromagnetic compatibility. between the ignition system
qualified, ensuring reliability under extreme temperatures and the mechanical stresses of a vehicle environment. Key Features for Automotive Design Time-Sensitive Networking (TSN) : Includes PHY-level timestamping for
provide specialized driver packages to support the BCM89890 in automotive testing and development environments. Documentation
