Renesas Electronics unveiled the highly integrated dual Low-Voltage Differential Signal (LVDS) LCD video processor, the RAA278830 Video Diagnostics Bridge IC. Many of the elements required to develop ASIL B automotive display systems that comply with ISO 26262 are included into the new IC, including electronic mirrors, digital instrument clusters, camera monitor systems (CMS), and heads-up displays (HUD).
Presenting the driver with crisp, undistorted images has grown more important as automotive safety systems rely more and more on display systems. Inaccurate warning icons, frozen pictures, and missing frames can all significantly impair vehicle safety.
The RAA278830 tackles these issues by incorporating functional safety features that explicitly prevent image corruption by monitoring both the signal integrity and the video content.
Frozen video, wrong colors, broken or corrupted video images, flashing, flickering, and video images that potentially block the driver’s view of the road (in the case of HUD systems) can all be detected by the internal diagnostics and measurement engines.
Renesas’ Automotive Video Signal Processing Expertise
Renesas has a long history of successfully serving the automotive industry with video signal processing technologies.
Renesas provides the award-winning Automotive HD-Link (AHL) family of equipment in addition to typical analog video decoders.
These products allow high-resolution images to be transferred over inexpensive cables and connections. The RAA278830 expands on Renesas’ industry-leading range of integrated LCD controllers, which are in use all over the world.
Key Features of the RAA278830
- Dual Open-LDI Input/Output
- ISO 26262 Functional Safety ASIL B rating
o CRCs, parity, BIST, and redundancy safety mechanisms implemented throughout the entire data path
- Video Diagnostic Capabilities
o Input/Output monitoring of video timing, signal integrity, and content
o Flickering, flashing, occlusion, and glare detection
- Spread Spectrum for lower system level EMI profile
- Image enhancement engine for superior image quality
- Dual host interface: I2C & SPI (configurable)
- SPI-Flash based OSD as well as an embedded font based OSD
o SPI boot capability (boot from SPI Flash, no MCU needed)
o Supports multi-bank for fail-safe OTA updates
- Space-efficient 72SCQFN, 10mm x 10mm
- AEC-Q100 Grade 2 qualified
Leadership Comments
“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.”
Device Availability
The RAA278830 comes in a 72-lead, 10×10 mm SCQFN package. It is available today from Renesas and authorized distributors. The RTK278830 evaluation board in multiple configurations is also available.
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