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TI 'all-format' decoder juggles PC, TV video formats

Posted: 22 Mar 2002 ?? ?Print Version ?Bookmark and Share

Keywords:tvp5200? tvp5145? tv decoder? pal decoder? ntsc decoder?

An "all-format" video decoder from Texas Instruments makes it possible to use both PC graphics formats and standard and high-definition video formats in display applications such as flat-panel equipment, rear-projection TVs, PC desktop monitors, and DLP and LCD projectors.

Ron Danielak, department manager for digital video and imaging, said the TVP5200 can reduce the cost of electronic components in display systems by up to 40 percent, cut design time by as much as 25 percent, and makes it easier for consumers to use equipment interchangeably without regard for display format.

"This is a strategically important product for manufacturers of display equipment," he said, "and only firms competent both in A/Ds [analog-to-digital converters] and video decoding can deliver it."

A second TI device, the single-chip TVP5145 video decoder, converts NTSC, PAL, and Secam video into digital component video. It targets applications that don't need HDTV or PC graphics input support.

Danielak described the TVP5200 as a single-chip analog front end that provides flexible viewing of multiple video formats. It can digitize RGB graphics formats up to UXGA at 60Hz. It supports NTSC, PAL and Secam CVBS standards, and decodes incoming composite, S-Video and component formats (including YUV, YCrCb and YPbPr).

It also supports DTVV formats such as 1,080 interlaced, and 720 and 480 progressive scan.

The chip offers 16 analog video inputs with integrated switches for multisource connections. Danielak said that as video interface standards evolve, TI will add features to enable customers to upgrade.

Applications for the TVP5145 decoder, meanwhile, include STBs, LCD monitors, rear-projection TVs, digital video recorders and video capture devices. The chip includes two oversampling 10-bit A/D channels and a full 10-bit digital chroma decoder. It supports analog standard-DTV component, composite and S-Video inputs, and includes MacroVision copy protection and the ability to lock to weak, noisy or unstable signals.

It can automatically detect and switch among NTSC, PAL, and Secam standards. It supports Secam video decoding along with the various NTSC and PAL regional standards, and it contains a configurable serial (I?C) or parallel (VMI) host port interface for parallel or serial configuration from a variety of host microcontrollers and DSPs.

TI expects to sample the TVP5200 in the second quarter and to begin volume production during the third. It expects to price the device at <$19 in 1, 000-piece quantities. The TVP5145 should be available in May, priced at $9.48.

EE Times

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