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STB chip integrates demodulator, MPEG decoder

Posted: 27 Mar 2007 ?? ?Print Version ?Bookmark and Share

Keywords:cable TV? STB? MPEG decoder? ST? demodulator?

QAMi5107 STB chip from ST

STMicroelectronics has announced a new-generation, single-chip solution for digital cable-TV STBs. The QAMi5107 is an integrated demodulator plus MPEG decoder for SD digital TV. The new device will enable manufacturers to cut their total component cost and simplify board design and assembly, while offering increased performance and enhanced security features.

Less production costs
By combining the function of the front-end digital-signal demodulator with the back-end MPEG decoder in a single package, ST reduces overall STB production costs due to the lower cost of the chipset and by enabling a simpler STB design.

The decoder supports the advanced security features required by all major conditional access suppliers. The 200MHz clock speed of the embedded ST20 32bit RISC CPU core provides increased power for advanced applications and is compatible with all mainstream STB middleware.

"The QAMi5107 sets a new industry standard for advanced security, mass-market STBs, reinforcing the success of the OMEGA family of MPEG2 decoders," said Monica De Virgiliis, general manager for ST's home video division. "Greater functional integration at the chip level will deliver cost reductions for manufacturers while giving viewers the advanced features and increased image quality, even in lower-cost boxes."

Single-device platform
The QAMi5107 addresses the requirements of the mainstream STB market by providing a unified, single-device platform for STBs ranging from basic low-cost products up to enhanced middleware-based solutions. ST currently supports the high-volume cable STB market with the QAMi5516, STi5517 and STi5100. The new chip offers a smooth migration path from designs based on these and other OMEGA devices, through ST's STAPI driver support, full reference software and reference hardware.

Like the other OMEGA devices, the QAMi5107 integrates a transport de-multiplex block, the ST20 32bit CPU, an audio/video MPEG-2 decoder, a digital video encoder, advanced security features and the enhanced display and graphics features. DVB descramblers in the transport de-multiplex block and Macrovision copy protection allow it to be used in cost-effective pay-TV services.

Priced at $7 for 100,000 quantities, the QAMi5107 is offered in PBGA324 package. Engineering samples are available with volume production starting in early Q2 2007.

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