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Ethernet PHY for automotive applications

   

Ethernet PHY for automotive applications

The new Texas Instruments DP83TC811S-Q1 Ethernet physical layer (PHY) transceiver offers supports for serial gigabit media independent interface (SGMII), small packaging and integrated diagnostic features. It enables designers to bring greater intelligence via Ethernet connectivity to space-constrained automotive body electronics, infotainment and cluster, and advanced driver assistance systems (ADAS) applications.

The DP83TC811S-Q1 supports the full range of media independent interfaces (MII), which enables designers to implement Ethernet connectivity with various media access controllers (MACs) and processors such as TIs Jacinto automotive processors. To help the system monitor and detect cable breaks, temperature and voltage variations, and electrostatic discharge (ESD) events, the DP83TC811S-Q1 features a diagnostic toolkit, including a patent-pending ESD monitor.

SGMII uses only four pins instead of the 12 required for reduced gigabit media independent interface (RGMII), reducing board size and number of traces and in turn simplifying the design layout. Additionally, the integration of a physical medium dependent (PMD) filter, MII series terminators, PMD termination and power-supply filtering components reduce the need for external discrete circuitry, leaving more board space for designers to add features. The DP83TC811S-Q1 has a latency as low as 140 ns, allowing latency-critical systems like automotive ADAS to respond and communicate more quickly.

www.ti.com/interface/ethernet



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