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Automotive Gigabit Ethernet Switch EVB9351-AUT-SW-NXP with Optical Ports

Sep 26, 2022

KDPOF implements NXP SJA1110 SoC in new automotive Ethernet switch for high-speed connectivity

KDPOF implements NXP SJA1110 SoC in new automotive Ethernet switch for high-speed connectivity

KDPOF Switch Evaluation Board EVB9351-AUT-SW-NXP Implements NXP SJA1110 SoCs and 1000BASE-RH Optical Ports for Connected Driving

KDPOF, leading supplier for gigabit connectivity over fiber optics, introduces the first automotive Ethernet switch EVB9351-AUT-SW-NXP with five 1000BASE-RH optical ports, each comprised of KDPOF’s KD9351 FOT and KD1053 PHY IC. “We very much appreciate the support from NXP® Semiconductors, a world leader in secure connectivity solutions for embedded applications, in the development of our new switch evaluation board,” stated Carlos Pardo, CEO and Co-founder of KDPOF. “The core of the high-speed switch platform is the new NXP SJA1110 SoC.” 

Guenter Sporer, Director of Marketing, Systems and Applications of Automotive Ethernet Solutions at NXP Semiconductors, added, “With the SJA1110, NXP Semiconductors provides a family of four pin-compatible and software-compatible automotive Ethernet switch SoC. Thus, we offer a scalable solution for automotive applications.” KDPOF’s new evaluation board supports carmakers and suppliers in delivering high-speed connectivity essential for the progress of autonomous vehicles. 

Scalable Automotive Ethernet Switch for High-speed Networks

The EVB9351-AUT-SW-NXP automotive Ethernet switch board has two SJA1110 switches from NXP on board. This part integrates an ARM Cortex-M7 @200MHz processor for autonomous and secure operation: 512 kB integrated SRAM as Instruction Tightly Coupled Memory (ITCM) and 256 kB integrated SRAM as Data Tightly Coupled Memory (DTCM). It further contains a double-precision floating-point unit and a memory protection unit. Boot time is less than 100 ms with a 512 kB firmware with authentication. The switch has selectable I/O voltages (1.8V, 2.5V and 3.3V) to aid in design flexibility. It provides a small footprint of 14 mm by 14 mm (LFBGA256) and a package with 0.8 mm pitch. It is automotive AEC-Q100 qualified, compliant with ISO 26262, and ASIL-B. 2.5 Gb/s operation is supported for two SGMII ports. The board has five optical 1000/100BASE-RH ports, 12 100BASE-T1 ports, and one NXP SABRE expansion connector.

EMC-safe and Reliable: 1000BASE-RH Optical Ports with KDPOF Chipset

With the KD9351 optical interface, KDPOF complements the proven KD1053 digital interface IC, thus providing a full optical port for in-vehicle gigabit connectivity. The assembly of the FOT and the IC is simplified, and the connector offers snap-fit without soldering. The devices form a complete automotive 1000BASE-RHC physical layer. Constructing the transimpedance amplifier, photodiode, LED driver, and LED as one single device significantly lowers costs. 

Optical Ethernet connectivity perfectly solves the challenges and electrical interference in vehicles thanks to its electromagnetic compatibility, reliability, and low cost. Applications include safe Ethernet backbones, smart antenna modules, and sensor connections for ADAS and audio/video.

More information
 

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