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10bit video digitizer achieves up to 165Msps speed grades

Posted: 06 Jun 2007 ?? ?Print Version ?Bookmark and Share

Keywords:10bit video digitizers? HDTV? HD DVDs?

ISL51002 10bit video digitizer from Intersil

Intersil Corp. has introduced the ISL51002, said to be the industry's most sophisticated 10bit video digitizer. This device combines ease-of-use and high-resolution video performance to create the ideal choice for digitizing analogue YPbPr video from HDTV tuners, STBs, SD and HD DVDs, as well as RGB graphics signals from PCs and workstations.

ISL51002 has three speed grades up to 165Msps to deliver resolution up to 1,080p/UXGA at 60Hz, the latest available standard. Its built-in black level compensation prevents variations in color or hueeven variations caused by temperature changeand its unparalleled differential non-linearity, typically 0.86LSB at 165MHz, eliminates visible contour errors when digitizing gradually changing images. The remarkable channel linearity is only the beginning of the story though, as the ISL51002 comes with a host of features not available in competitive devices.

ISL51002's digital PLL has high noise immunity and 250ns (typical) and 500ns (max), low jitter performance that eliminates the need for an analog loop filter. This highly innovative PLL is the easiest to use in the industry, with only one parameter needing to be programmed for optimal video performance.

The device also has an integrated sync measurement circuit that eliminates the development time of implementing this function in software. This circuit analyzes the incoming sync signals for type, polarity, period and pulse width. This data, which is necessary for correct display, is read from internal registers through an IC interface.

Moreover, ISL52002 has an integrated automatic sampling phase adjust that evaluates 64 different sampling phases each second and selects the best phase to deliver the sharpest picture possible. It also has a robust Macrovision-compliant sync separator that prevents visual disturbances when Macrovision-protected signals are displayed or head-switching noise from analogue VCRs is encountered.

ISL51002's 4:1 mux input provides superior design flexibility. Also simplifying design is an integrated RGB to YUV color space converter which allows the user to process an RGB signal in the YUV space.

The ISL51002 has unparalleled DNL (typical +0.86LSB at 165MHz), eliminating visible contour errors when digitizing gradually changing images.

Target applications for the ISL51002 include flat panel TVs, front/rear projection TVs, PC LCD monitors and projectors, high-quality scan converters and video/graphics processing.

The ISL51002 is available now in a 128-lead MQFP package.

- Henri Arnold
EE Times Europe

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