Imaging SOCs target automotive market with small footprint, high dynamics

October 11, 2017 // By Christoph Hammerschmidt
ON Semiconductor has introduced two new highly integrated CMOS imaging sensors for the rapidly growing automotive imaging market. The parts provide a complete solution with the image sensor and processing functionality integrated within a low power system-on-chip (SoC) that simplifies and speeds adoption in applications such as rear and surround view cameras.  

Industry analyst predictions suggest annual shipments of cameras for use in cars will easily surpass 80 million units by 2020. Sensors that support the progression towards full autonomous driving represent one area of application, whilst imaging devices such as the new AS0140 and AS0142 can be used to improve driver comfort, convenience and safety through a growing range of Advanced Driver Assistance Systems (ADAS). Integrated sensors can provide vehicle designers with easy-to-implement solutions that support comprehensive and clear views of the vehicle surroundings for drivers.

The AS0140 and AS0142 are both 1/4-inch format devices capable of supporting 45 fps throughput at full resolution or 60 fps at 720p. Key features include distortion correction, multi-colour overlays and both analogue (NTSC) and digital (Ethernet) interfaces. Both SoC devices achieve enhanced image quality by making use of the adaptive local tone mapping (ALTM) in order to eliminate artefacts that impinge on the acquisition process. Dynamic range of 93 dB allows new devices to operate effectively in both high and low light applications. Both the AS0140 and AS0142 provide multi-camera synchronization support which increases their value to automotive design engineers as the number of cameras installed on vehicles continues to rise. PCB real estate savings of greater than 30% can be achieved compared to conventional solutions comprised of discrete sensor and processor components. This helps designers to implement camera solutions without impacting vehicle styling or aesthetics.

Both new devices exhibit class-leading power efficiency; when running at 30 fps in high dynamic range (HDR) mode, they consume just 530 milliwatts (mW). Operating temperature range is -40°C to +105°C, enhancing suitability for use in automotive environments. Engineering samples are available now. The  AS0140 will be in production in 4Q17, and  AS0142 will be in production in 1Q18.

More information: http://www.onsemi.com/PowerSolutions/product.do?id=AS0140AT&utm_source=pr&utm_medium=press_release&utm_campaign=AS0140_142&utm_content=link-AS0140-page