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DVB-S2 demodulator paves way for cost-effective HDTV equipment

Posted: 15 Sep 2008 ?? ?Print Version ?Bookmark and Share

Keywords:demodulator? standard DVB-S2? HDTV?

STMicroelectronics is bolstering its presence in the DVB-S2 digital satellite broadcast solutions arena with the launch of a new STB 'front-end' chipset for digital satellite HDTV equipment. The new STV6110A silicon tuner and the STV0903 single-channel satellite TV demodulator meet all the requirements of the DVB-S2 standard for broadcast applications. The use of DVB-S2 by consumer equipment manufacturers is strongly increasing in a wide range of applications, including Pay-TV and free-to-air STBs, integrated digital TVs (iDTVs), PC TV cards and the emerging high-definition Blu-ray (BD) equipment.

The DVB-S2 standard increases the capacity of satellite communications links by 30 percent compared to DVB-S, which has been in use for many years by satellite operators worldwide. In combination with other new coding and satellite technologies, DVB-S2 enables the effective deployment of high data-rate applications such as HDTV, broadband Internet and interactive services, as well as a significant increase in the number of standard channels that can be broadcast in a conventional transponder. Major satellite operators covering Europe, North Africa and the Middle-East are now in the process of accelerating the migration of all their satellite transponders to the more efficient DVB-S2 standard. The use of the standard is also increasing outside of the US and Western Europe, toward emerging markets such as Russia, India and Brazil, as well as Eastern Europe.

The new STV0903 demodulator, which operates seamlessly with ST's new STV6110A silicon tuner, is implemented in a cost-optimized process technology and allows easy upgrade to ST's dual-channel STV0900 demodulator, which was launched in early 2007. The STV6110A silicon tuner is a replacement for ST's STB6000 and STB6100 tuners, which have shipped a cumulative volume of more than 30 million units since 2004. The STV6110A is also suitable for use in markets outside of the DVB-S2 standard, such as Japan, and China, in which new satellite standards are emerging. Importantly, this new STV6110A tuner and STV0903 demodulator combo provides manufacturers with a significant reduction in power consumption offering 600mW and 1.2W, respectively, which is approximately 50 percent of the combined power consumption of ST's previous chipset.

Full software support is available via ST's application program interface (STAPI), enabling ease of use with ST's extensive family of standard- and high-definition H.264/MPEG-4/VC-1 decoders. Both new devices support QPSK (quadrature-phase-shift-keying) and 8PSK modulation, as well as both DVB-S and DVB-S2 processing. The STV0903 demodulator is packaged in a 14mm x 14mm 128-pin LQFP and is priced at $9 in quantities of 10,000. The STV6110A tuner is packaged in a 5 x 5mm 32-pin QFN and is priced at $1.5 in quantities of 10,000. Both devices are available now in production volumes.

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