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STV0974

ST Microelectronics
Part Number STV0974
Manufacturer ST Microelectronics
Description Mobile Imaging DSP
Published Mar 23, 2006
Detailed Description STV0974 Mobile Imaging DSP Features ■ Supports VS6552 - 640 x 480 (VGA) color CMOS image sensor ■ Supports VisionLink lo...
Datasheet PDF File STV0974 PDF File

STV0974
STV0974

Overview
STV0974 Mobile Imaging DSP Features ■ Supports VS6552 - 640 x 480 (VGA) color CMOS image sensor ■ Supports VisionLink low EMI link to image sensor ■ Specialized video processor for noise/defect filtering, color reconstruction, sharpness enhancement and radial corrections ■ Programmable gamma correction for LCD support ■ Programmable cropping, down-sizing by 1.
5, 2, 2.
5, 3, 4, 5 and 6, MMS (Multi Media Messaging Service) digital zoom ■ JPEG compression, with programmable target file size ■ M-JPEG operation at up to 30 frame/s at VGA resolution ■ Programmable pixel output format including ITU-R 656 modes, RGB viewfinder modes and JPEG baseline ■ Flashgun control ■ Flexible host interface: ● Description The STV0974 is a low power digital image processor designed for the VS6552 color VGA image sensor.
The STV0974 uses advanced image processing techniques to deliver high quality VGA images at up to 30 frames per second (frame/s).
The sensor data received via the low EMI sensor interface is processed in real time: this includes pixel defect correction, color interpolation, image sharpness enhancement, selective noise filtering, cropping and scaling, allowing digital zoom for ViewFinder or MMS applications.
Finally the image can be JPEG-compressed in real-time.
The STV0974 also performs sensor housekeeping functions such as automatic exposure and white balance controls.
Applications ■ Mobile phone embedded camera system ■ PDA embedded camera or accessory camera ■ Wireless security camera Technical Specifications Sensor Frame rate (frame/s) Power supply Power requirements Package dimensions Temperature range 640 x 480 color CMOS (VS6552) up to 30 1.
8 +/- 0.
1 V 110 mW active < 30 µW standby 6 mm x 6 mm x 1.
2 mm [ -25; +70 ] °C 8-bit data /Hsync /Vsync video output interface and I²C camera control interface 8-bit microprocessor interface with 2 Kbyte video FIFO for JPEG data, 10 Kbyte for nonJPEG data, interrupt and DMA requests ● ■ Multi-mode exposure control and color...


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