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STMicro satellite demodulator increases bandwidth

Posted: 17 May 2002 ?? ?Print Version ?Bookmark and Share

Keywords:stv0499? satellite tv demodulator? digital tv demodulator? stb demodulator? qpsk demodulator?

STMicroelectronics has introduced the STV0499 digital satellite television demodulator that includes QPSK, 8PSSK, and 16QAM mapping and an integrated Turbo coding system, which increases the bandwidth of satellite transmission by >35 percent compared to standard commercial transmission.

The chip is also claimed to provide a 50 percent increase in bandwidth when 8PSK transmission is used. The increase in bandwidth allows broadcaster to offer additional services and reduce dish sizes by >33 percent.

Manufactured using a 0.185m CMOS process, the STV0499 is fully-compliant with the DVB-S and DIRECTV specifications, and is encode/decode 8PSK and 16QAM signals with backward compatibility to existing QPSK STBs.

The demodulator has a frequency range of 950MHz to 2.15GHz and supports data rates of up to 75Mbaud. Suitable for integration with the company's STi55xx (Omega) STBs, the chip also supports the DiSEqC 2.x technology, allowing bi-directional data transmission between the STB and external dish equipment

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