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ST announces low-power, ultra-compact demodulator

Posted: 23 Mar 2006     Print Version  Bookmark and Share

Keywords:STMicroelectronics  low-power and ultra-compact demodulator  front-end processing 

STMicroelectronics (ST) has announced the low-power and ultra-compact STV0362 COFDM demodulator. This coded orthogonal frequency-division multiplexing (COFDM) demodulator connects seamlessly to ST's industry-standard OMEGA back-end devices to create highly cost-effective chipsets for this price-sensitive market, and is fully compliant with the latest NorDig Unified 1.0.2 standard. NorDig is a cooperative organization of Nordic TV and telecom companies developing a common and open strategy for the introduction of digital television in the Nordic countries (Denmark, Finland, Iceland, Norway and Sweden), and the NorDig Unified specification is now seen as a standard for the whole of Europe, alongside EBU Digital Video Broadcasting Terrestrial (DVB-T).

The STV0362 has an operating power consumption of less than 250mW (typical), making it suitable for portable DVB-T applications, in addition to its main use in NorDig-compliant STBs and integrated Digital TV (iDTV) sets.

According to the company, the power and cost saving breakthrough results from the use of ST's advanced CMOS090 design platform, which is based on 90nm CMOS process technology.

The chip's ultra-compact 7-by-7mm 64-pin TQFP package supports the miniaturization requirements of many emerging product families. Its small size and low cost allow it to be used as an add-on 'commodity' feature in other TV-related platforms such as satellite and TV over broadband STBs, DVD players and recorders, and in portable TV sets and digital video recorders.

In addition, said ST, the STV0362 provides outstanding adjacent and co-channel rejection capability, with on-chip digital channel filters, and supports 2-, 4- and 8K FFT length. Other integrated features include 6-, 7- and 8MHz channel bandwidth; digital carrier, timing and symbol recovery loops; TPS decoding; and hierarchical capability.

The STV0362 can manage signals containing such echoes by synchronizing up to 260µs outside the guard interval. Doppler shifted signals, seen in mobile applications or where an echo is received from a moving object, are detected and processed in accordance with NorDig requirements, using adaptive channel correction in both time and frequency.

Samples of the STV0362 in the TQFP64x64 package will be available during the first quarter of 2006, with volume production planned for June 2006. Pricing is around Rs.132.75 ($3) in quantities of two lakh per year.

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