VGA resolution USB2.0 web camera sensor

The VL6522 is a VGA imager on chip (IOC), fabricated in a high performance 0.18 μm CMOS imaging process. The device produces a YUV 4:2:2 digital video data stream at up to 60(a) frames per second, and supports a microphone input.

Video and audio data is output via a USB2.0 high speed (480 Mbps) interface and allows simple interfacing to a host PC using generic audio and video class drivers under the appropriate operating system (Windows XP). Audio/video class compliance and vendor command sets allow development of other O/S drivers with relative ease

Features

• 640 x 480 (VGA) USB2.0 Web camera
• RGB Bayer color filter array
• 3.6 μm pixel size
• Integrated 10-bit video ADC and processing
• 16-bit audio pre-amplifier, S - ? ADC and processing
• USB2.0 high speed interface for data transfer and control
• I2C master capability
• USB audio class type 1 compliance
• USB video YUV2 compliance
• On-chip 3.3 V and 1.8 V regulators
• Requires single 5 V supply
• Minimum required PCB support components
• Video format: 640 x 480 YUV2 up to 30 fps
• Single 12 MHz input clock
• Integrated image processing functions: – Automatic exposure – Automatic white balance – Dark level compensation – Lens shading correction – Image sub-sampling – Flicker cancellation – Sharpening – Gamma correction – RGB to YUV 422
• Audio processing: – Audio class compliance PCM16 – Preamplifier + ADC + processing – Audio rates of 8 kHz to 48 kHz, 16 bits – Audio dynamic range from mic. input to USB data output> 60 dB

Keywords:Application Specific for Imaging, Sensors for Imaging, Webcam Sensors