■onsemi AR0331 is a 1/3-inch CMOS digital image sensor with an active pixel array of 2048 (H) x 1536 (V). It captures images in linear or high dynamic range mode with rolling shutter readout. It includes sophisticated camera features such as pixel binning, windowing, and video and single frame modes. It is designed for low light and high dynamic range scene performance. It can be programmed via a simple two-wire serial interface. The ARQ331 produces very clear and crisp digital images and is capable of capturing both continuous and single frame video, making it a perfect choice for a wide range of applications including surveillance and high definition video.
■onsemi AR0331 can operate in default mode or can be pin programmed for frame size, exposure, gain, and other parameters. The default mode outputs 1080p resolution images at 60 frames per second (fps). In linear mode, it outputs 12-bit or 10-bit A-law compressed raw data using either parallel or serial (HiSPi) output ports. In high dynamic range mode, it outputs 12-bit compressed data using parallel output. in HiSPi mode. 12-bit or 14-bit compressed or 16-bit linearized data can be output. The device can be operated in video (master) mode or single frame trigger mode.
■FRAME_VALID and LINE_VALID signals are output on dedicated pins, along with a synchronous pixel clock output in parallel mode.
■The AR0331 includes additional features that allow application-specific adjustments: windowing and offset, automatic black level correction, and an on-board temperature sensor. Optional register information and histogram statistics can be embedded in the first and last two lines of the image frame.
■The sensor is designed to operate over a wide temperature range (-30°C to +85°C).
●Features
■Excellent low-light performance
■Latest 2.2-inch IM pixel with Onsemi A-Pix™ technology
■1080P 60 fps Full HD support for excellent video performance
■Linear or high dynamic range capture
■3.1M (4:3) and 1080P Full HD (16:9) images
■Optional Adaptive Local Tone Mapping (AL™)
■Interleaved T1/T2 outputs
■External mechanical shutter bracket
■Support for external LED or Xenon flash
■Slow motion video (VGA 120 fps)
■On-chip PLL oscillator
■Integrated position-based color and lens shading correction
■Slave mode for precise frame rate control
■Stereo/3D camera support
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FAQs and answers about AR0331 image sensor
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1. Which company produces the AR0331 image sensor?
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A: The AR0331 image sensor is manufactured by Aptina (now part of ON Semiconductor). Aptina is a leading global provider of CMOS imaging solutions for a wide range of imaging applications.
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2. What are the pixels of the AR0331 image sensor?
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A: The AR0331 image sensor has 3.1 megapixels and uses a 2.2-micron pixel design to provide high-resolution image quality.
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3. What is the maximum video resolution and frame rate supported by the AR0331 image sensor?
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A: The AR0331 image sensor can provide up to 1080p HD video at 60fps to meet the demand for HD video capture.
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4. What advanced technologies are used in the AR0331 image sensor?
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A: The AR0331 image sensor uses Aptina's A-Pix™ technology, an advanced pixel technology that combines optical waveguides, deep photodiodes, and 65nm pixel design rules to cost-effectively improve pixel performance. In addition, the AR0331 also features wide dynamic range (WDR) and built-in adaptive local tone mapping to provide excellent image quality in a variety of lighting conditions.
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5. How does the AR0331 image sensor perform in low-light environments?
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A: The AR0331 image sensor performs well in low-light environments. It uses advanced binning technology to achieve sub-1-lux low-light performance of the sensor, allowing surveillance cameras to capture clear HD video in low-light environments.
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6. What markets or applications does the AR0331 image sensor apply to?
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A: The AR0331 image sensor is designed for entry-level, mainstream and high-end surveillance camera product manufacturers and is suitable for the mainstream 1/3-inch optical format surveillance camera market. It can meet the needs of the growing surveillance market centered on full HD video and provide surveillance camera manufacturers with high-performance image sensor solutions.
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7. Has the AR0331 image sensor won any awards?
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A: Yes, the AR0331 surveillance image sensor won the Best Product Award in the Passive Components and Sensors category of the 2011 Electronic Design Technology (EDN China) Innovation Award. This award is a testament to the AR0331 image sensor's outstanding performance and innovation.
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8. How does the AR0331 image sensor communicate with the host controller?
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A: The AR0331 image sensor typically communicates with the host controller via the SCCB (Serial Camera Control Bus) bus. The SCCB bus allows the host controller to configure the camera's register parameters to control various functions of the image sensor.
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9. What are the characteristics of the AR0331 image sensor in terms of power consumption?
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A: The AR0331 image sensor performs well in terms of power consumption, and its low power design helps extend the battery life of devices such as surveillance cameras. However, the specific power consumption values may vary depending on the application scenario and configuration.
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10. How to solve image quality problems that may occur during the use of the AR0331 image sensor?
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A: If the AR0331 image sensor has image quality problems during use, such as blurring, excessive noise, etc., you can try to adjust the camera's exposure, gain and other parameters, or check whether the camera is installed and connected correctly. In addition, you can also consider upgrading the camera's firmware or driver to obtain better image quality and performance. If the problem persists, it is recommended to contact the supplier or manufacturer's technical support team for further diagnosis and resolution.
