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ASSP sharpens blurry video, images

Posted: 09 Feb 2009     Print Version  Bookmark and Share

Keywords:ASSP  video interfaces  digital A/V devices  image resolution 

The technology enhances image data from QVGA resolution (320pixels x 240pixels) to WVGA resolution (800pixels x 480pixels) for clear image display on mobile phones and car navigation systems. The technology also achieves crisp images in 1,920pixels x 1,080pixels HDTV broadcasts by boosting image data in the 640pixels x 480pixels VGA format ordinarily used for TV broadcasts and DVD storage to 6x the resolution.

The key features of the uPD9245GJ ASSP are the following:

• Resolution of 60fps for 1,280pixel x 1,024pixel SXGA resolution;

• 60fps resolution for HDTV (1,366pixels x 768pixels)

• Built-in I²C bus for register setting;

• JTAG support;

• 10-30MHz system clock;

• 108MHz pixel clock (max.);

• 3.3V power supply for I/O and 1.5V supply for the core;

• 0.9W typical power consumption at 60fps for SXGA resolution;

• -40°C to 70°C operating temperature;

• 144-pin low-profile LQFP.

Other possible applications for the new ASSP include shooting photos and video on lower-resolution digital cameras and other devices, and playing them back as high-resolution images, enabling the consumer to capture more images using the same amount of memory. For example, if 1GB of memory is used, NEC's super-resolution technology allows about 34mins. of video to be shot in a standard 4MB resolution mode, which would be similar to a 17min. video shot using an 8MB high-resolution mode. Alternatively, scanning with low-resolution sensors and rendering the image in high resolution shortens scanning time and reduces system costs.

Samples of NEC Electronics' uPD9245GJ ASSP are available now with pricing beginning under Rs.497.19 ($10) for more than 1,000 pieces and Rs.1,491.58 ($30) in lower volumes. Super-resolution IP cores are also available for NEC Electronics' cell-based ASIC (CB-90 and CB-12) and gate array (CMOS-12M) libraries.

NEC Electronics also has developed an evaluation board to support the uPD9245GJ ASSP. The small, 4-inch x 2-inch board includes an evaluation version of the ASSP running alongside an NEC Electronics 78K0/KE2 MCU, a DVI-D video interface and an I²C slave interface and USB connector.

- Cliff Roth
Video Imaging DesignLine


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