LCD video processor for ASIL B displays

Renesas Electronics has introduced a cutting-edge video diagnostic bridge chip tailored for head-up displays (HUD), instrument clusters, and electronic mirrors. These components play a crucial role in ensuring safety on the road, necessitating compliance with the ISO26262 ASIL-B safety standards.

The RAA278830 Video Diagnostics Bridge IC stands out as a dual Low-Voltage Differential Signal (LVDS) LCD video processor, packed with essential safety features for ASIL-B. Housed in a compact 72SCQFN package measuring 10mm x 10mm, this chip is designed to meet the stringent requirements of automotive safety.

Equipped with advanced functional safety features, the RAA278830 is engineered to prevent image corruption by monitoring signal integrity and video content. Its internal diagnostics and measurement engines can identify issues such as frozen video, incorrect colors, and corrupt images, ensuring optimal performance for HUD systems and preventing any visual distractions for drivers.

• Moreover, the chip boasts a four-channel video decoder tailored for surround-view cameras, further enhancing its versatility in automotive applications. Renesas continues to expand its 7nm ADAS chip family with the introduction of the V4M, reinforcing its commitment to innovation in the automotive semiconductor industry.

The RAA278830 features dual inputs based on the Open LDI specification, incorporating CRC and parity checks, Built-In Self-Test (BIST) capabilities, and redundancy safety mechanisms along the data path. With comprehensive I/O monitoring of video timing, signal integrity, and content, the chip can address issues like flickering, flashing, occlusion, and glare detection through its image enhancement engine.

Additionally, the chip includes a SPI-Flash-based on-screen display (OSD) and an embedded font-based OSD, eliminating the need for a microcontroller by enabling booting from SPI Flash. The flash memory supports multiple banks for fail-safe over-the-air (OTA) updates, ensuring seamless and secure software upgrades for enhanced functionality.

Jason Kim, Vice President and General Manager of the Configurable Mixed-Signal Division at Renesas, emphasized the importance of integrating functional safety features into their video processing technology. He stated, “Our automotive customers have consistently asked us to add functional safety features to our industry-leading video processing technology. The RAA278830 delivers all of the features needed to create safe, easy-to-implement, and cost-effective LCD displays for various passenger vehicles.”

For automotive manufacturers seeking to leverage this advanced technology, the RAA278830 is readily available alongside the RTK278830 evaluation board in multiple configurations. To learn more about this innovative solution, visit renesas.com/RAA278830 and explore the possibilities for enhancing safety and performance in automotive display systems.