Imaging SoCs shrink automotive cameras

On Semiconductor says that its latest imaging SoCs will enable smaller automotive cameras, helping vehicle manufacturers to integrate cameras without affecting styling and reducing system cost.

The integrated 1.0Mpixel CMOS image sensors within a low power SoC simplifies and speeds adoption in applications such as rear and surround view cameras, says On Semiconductor. The AS0140 and AS0142 also provide PCB space savings of greater than 30 per cent compared to conventional discrete sensor and processor component alternatives, says the company. This helps designers to implement camera solutions without impacting vehicle styling or aesthetics.

The number of cameras and other image sensing technologies on passenger vehicles continues to increase rapidly. Industry analysts predict annual shipments of cameras for use in cars will exceed 80 million units by 2020. Sensors are a key part of autonomous driving, together while imaging devices such as the AS0140 and AS0142 can be used to improve driver comfort, convenience and safety through advanced driver assistance systems (ADAS). 

The AS0140 and AS0142 are both 0.25-inch format devices capable of supporting 45-frame per second throughput at full resolution or 60-frame per second at 720pixel. Key features include distortion correction, multi-colour overlays and both analogue (NTSC) and digital (Ethernet) interfaces. Both SoCs 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 93dB allows new devices to operate effectively in both high and low light applications. 

The AS0140 and AS0142 provide multi-camera synchronisation support which increases their value to automotive design engineers as the number of cameras installed on vehicles continues to rise.

Both SoCs are claimed to exhibit class-leading power efficiency. Running at 30-frame per second in high dynamic range (HDR) mode, they consume just 530mW. Operating temperature range is -40 to +105 degree C, suitable for use in automotive environments.

Engineering samples are available now. The AS0140 will be in production in Q4 2017, and AS0142 will be in production in Q1 2018.


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