●OmniVision's OV5645 is a high-performance, 5-megapixel system-on-chip (SOC) ideally suited for the cost-sensitive segment of the mobile handset market. The CameraChip™ sensor's single MIPI port replaces the bandwidth-limited DVP interface and expensive embedded JPEG compressor, enabling the new OV5645 sensor to save significant silicon area and cost. Embedded autofocus control with voice coil motor driver provides further cost savings to the end user, making the OV5645 an attractive alternative to other 5-megapixel sensors currently on the market.
●The OV5645 also features a new picture-in-picture (PIP) architecture, providing an easy-to-implement, low-cost dual-camera system solution for mobile phones and smartphones. The feature is based on a master/slave configuration, where the front-facing camera (OV7965) can be connected through the OV5645 master camera, enabling a dual-camera system with PIP functionality without the need to add a MIPI interface to the baseband processor.
●Based on OmniVision's 1.4-micron OmniBSI™ pixel architecture, the OV5645 provides high-performance 5-megapixel photography and 720p HD video at 60 frames per second (FPS), as well as 1080p HD images at 30 frames per second, with full user control over the format and output data transmission. The sensor's 720p HD video is captured across the full field of view with 2 x 2 binning, doubling sensitivity and improving signal-to-noise ratio (SNR). A unique post-binning, resampling filter feature removes jagged artifacts around slanted edges and minimizes spatial artifacts to provide clearer color images.
●Product Features：
■1.4μm x 1.4μm pixels with OmniBSI+™ high-performance technology (high sensitivity, low crosstalk, low noise, improved quantum efficiency)
■Optical size is 1/4"
■Automatic image control functions: automatic exposure control (AEC), automatic white balance (AWB), automatic band filter (ABF), automatic 50/60 Hz brightness detection and automatic black calibration (ABLC)
■Image quality control: color saturation, hue, gamma, sharpness (edge enhancement), lens correction, defective pixel removal and noise removal
■Supported output format: RAW RGB, RGB565/555/444, YUV422/420, YCbCr422
■Support video or snapshot operation
■Support internal and external frame synchronization for frame exposure mode
■Support LED and flash mode
■Support horizontal and vertical subsampling, binning
■Support minimizing defects on binned images
■Support data compression output
■Anti-shock bracket
■Standard serial SCCB interface
■Dual-channel MIPI output interface
■Core power embedded 1.5V regulator
■Programmable I/O drive capability, I/O tri-state configurability
■Support cancellation of black sun
■Support image size: 5 million pixels, any size can be reduced from 5 million pixels
■Support auto focus control (AFC) with embedded AF VCM driver
■Embedded microcontroller
■Suitable for module size of 8.5 x 8.5 x<6mm with CSP and RW packaging
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OV5645 Image Sensor FAQ：
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1. What are the basic parameters of the OV5645 image sensor?
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A: The OV5645 is a low-voltage, high-performance 1/4-inch 5-megapixel CMOS image sensor. It uses OmniBSI+™ technology and has a resolution of 2592×1944, which can provide comprehensive image processing functions in a small size. Its main features include high sensitivity, low noise, improved quantum efficiency, etc.
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2. What is the maximum image transfer rate of the OV5645?
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A: The maximum image transfer rate of the OV5645 depends on the resolution. At QSXGA (2592×1944) resolution, the maximum image transfer rate is 15 frames/second; at 1080p resolution, it can reach 30 frames/second; at 1280×960 resolution, it is 45 frames/second; at 720p resolution, it is up to 60 frames/second.
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3. What image processing functions does the OV5645 support?
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A: The OV5645 supports a variety of image processing functions, including but not limited to exposure control, gamma, white balance, color saturation, hue control, defective pixel removal, noise removal, etc. These functions can be programmed through the serial camera control bus (SCCB) interface or the embedded microcontroller.
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4. What are the automatic image control functions of the OV5645?
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A: The OV5645 has a variety of automatic image control functions, including automatic exposure control (AEC), automatic white balance (AWB), automatic bandpass filter (ABF), automatic 50/60Hz brightness detection, and automatic black level calibration (ABLC). These functions help to obtain high-quality images under different lighting conditions.
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5. How is the anti-shake function of the OV5645 implemented?
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A: The OV5645 provides anti-shake function through an internal anti-shake engine. This anti-shake technology helps to reduce image blur caused by hand shaking or device movement, thereby improving image stability and clarity.
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6. What is the package form and size of the OV5645?
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A: The OV5645 is usually packaged in CSP (chip-scale package) or RW package, suitable for module size of 8.5×8.5x<6 mm. The specific package size may vary depending on the manufacturer and batch, and it is recommended to refer to the latest product specification.
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7. What are the power requirements of OV5645?
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A: The power requirements of OV5645 include core power supply 1.5V±5% (with embedded 1.5V regulator), analog power supply 2.6~3.0V (typical value is 2.8V), and input/output power supply 1.8V/2.8V. The specific power requirements may vary depending on the actual application scenario. Please refer to the product specification in actual use.
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8. How does OV5645 communicate with external devices?
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A: OV5645 communicates with external devices through the serial camera control bus (SCCB) interface. In addition, it also supports serial MIPI port for data transmission to meet the needs of high-speed data transmission.
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9. Does OV5645 support autofocus?
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A: Yes, OV5645 supports auto focus control (AFC) and has an auto focus VCM driver embedded. This enables it to automatically adjust the focus during shooting to obtain a clearer image.
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10. What are the application areas of OV5645?
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A: OV5645 has a wide range of applications in many fields, including smartphones, digital cameras, toys, personal computer multimedia devices, etc. due to its excellent image quality and wide applicability. It can provide high-quality photo and video shooting experience for these devices.
