Featuring a low-light sensitivity >1400mV/(lux-sec) and a 2x improvement in signal-to-noise ratio (<70lux), OmniVision Technologies Inc.’s 1.75µ OmniBSI (backside illumination) family of image sensors enables high-quality imaging in mobile phones, digital still cameras (DSCs), and digital video recorders (DVRs).
The 1.75µ OmniBSI family consists of a 5-megapixel OV5650 RAW sensor for mobile phone high resolution cameras, the 2-megapixel OV2665 system on chip (SoC), and the 5-megapixel OV5653 for the DSC and digital video. The OV5650 enables high frame rate HD video at 60fps with complete user control over formatting and output data transfer. It supports a digital video parallel port or two-lane MIPI, and provides full-frame, windowed or scaled 10-bit images in RAW RGB format, with 256 bytes of available on-chip memory for image tuning.
The 2-megapixel OV2665 SoC device provides automatic real time image processing with parallel or single lane MIPI interface, and supports 2x2 binning and sub-sampling down to any arbitrary resolution. The OV2665 incorporates an advanced image signal processor (ISP) with features such as lens correction, auto exposure, auto white balance, and auto flicker. With two separate phase-locked loop outputs, the MIPI clock can be tuned independently of the internal clock.
The OV5653 delivers 720p at 60fps and full HD 1080p at 30fps, resulting in vivid still and video images, even in the most challenging lighting conditions. Although a RAW sensor, the OV5653 includes a variety of automatic image control functions such as automatic exposure control, automatic 50/60Hz luminance detection, and auto black level calibration. The OV5653 also includes programmable user controls for image quality, formatting and output data transfer, mirror and flip, cropping, windowing and panning. The OV5653 also includes 256 bytes of embedded one-time programmable memory for storing custom specific information such as calibration parameters, support for horizontal and vertical sub-sampling, and 2x2 binning. Its embedded 1.5V regulator eliminates the need for additional power components.
OmniVision Technologies Inc.
www.ovt.com
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Figure 1: Microchip offers a demonstration board to allow you to evaluate the offset-voltage-calibration capabilities of the MCP652 op amp.
Figure 2: The MCP65x offset-calibrating op amp series is available in single-eight pin (a), dual eight-pin (b), and dual 10-pin versions (c).
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Figure 1: OmniVision Technologies’ a 5-megapixel OV5650 RAW sensor for mobile phone cameras and the 2-megapixel OV2665 SoC feature low-light sensitivity >1400mV/(lux-sec) and a 2x improvement in signal-to-noise ratio (<70lux).
Figure 2: The 5-megapixel OV5653, targeted at the DSC and digital video markets, delivers 720p at 60fps and full HD 1080p at 30fps even in the most challenging light conditions.
