LVDS LCD video processor targets automotive displays
Renesas Electronics Corporation has introduced the RAA278830 Video Diagnostics Bridge IC, a highly integrated dual Low-Voltage Differential Signaling (LVDS) LCD video processor.
The LCD video processor IC integrates many of the features necessary to design ISO 26262-compliant ASIL B automotive display systems, such as heads-up displays (HUD), digital instrument clusters, camera monitor systems (CMS), and electronic mirrors.
As automotive safety systems increasingly rely on display systems, it has become more critical for clear, uncorrupted images to be presented to the driver. Missing frames, frozen images, and incorrect warning icons can seriously compromise driver safety. The RAA278830 addresses these concerns with Functional Safety features built into the device to prevent any image corruption by monitoring both signal integrity and the video content itself. The internal diagnostics and measurement engines can detect frozen video, incorrect colours, and broken or corrupt video images, as well as flashing, flickering, and video images that could obstruct the driver’s view of the road (in the case of HUD systems).
The LCD video processor features dual open-LDI input/output and an ISO 26262 Functional Safety ASIL B rating. CRCs, parity, BIST, and redundancy safety mechanisms are implemented throughout the entire data path.
Video diagnostic capabilities include input/output monitoring of video timing, signal integrity, and content, while Spread Spectrum technology minimises the system-level EMI profile, and an image enhancement engine boosts image quality. The detection of flickering, flashing, occlusion, and glare is also included.
Other features include SPI-Flash-based OSD as well as an embedded font-based OSD, SPI boot capability (boot from SPI Flash, no MCU needed), AEC-Q100 Grade 2 qualification and support for multi-bank for fail-safe OTA updates.
“Our automotive customers have consistently asked us to add functional safety features to our industry-leading video processing technology,” said Jason Kim, Vice President and General Manager of the Configurable Mixed-Signal Division at Renesas. “The RAA278830 delivers all of the features needed to create safe, easy-to-implement and economical LCD display for all types of passenger vehicles.”
The RAA278830 LCD video processor is available in a 72-lead, 10- x10-mm SCQFN package along with the RTK278830 evaluation board.
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