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Demodulators claim highest DVB-T2 perfromance

Posted: 15 Jun 2012 ?? ?Print Version ?Bookmark and Share

Keywords:multimedia demodulator? DVB standards?

Silicon Laboratories Inc. has debuted two new multimedia demodulators, the Si2169 and Si2168. The Si2169 integrates the DVB-T2 standard with the DVB-S2, DVB-T, DVB-S and DVB-C standards into a single CMOS chip supporting terrestrial, satellite and cable TV broadcast. The Si2168 is a DVB-T2/T/C demodulator designed for terrestrial and cable TV broadcast.

The Si2168/69 demodulators claim the industry's highest level of DVB-T2 terrestrial broadcast performance in challenging reception conditions and fully complying with the NorDig 2.2.1 and D-Book 7 specifications. They are said to offer improved echo performance in all DVB-T2 transmission modes, enabling the industry's fastest DVB-T2 channel lock times under the most challenging echo conditions. Silicon Labs has implemented a special architecture to reduce DVB-T2 lock times to industry-leading values unlike competing demodulators that typically require significantly longer time to lock onto difficult channels.

When combined with Silicon Labs' silicon TV tuners, the Si2168/69 demodulators enable a complete video front-end solution from RF to baseband. The Si2168/69 architecture is also flexible enough to support other tuner options including mixer oscillator phase-locked loop (MOPLL)-based modules and standard intermediate frequency (IF) terrestrial silicon tuners.

According to Silicon Labs, the Si2168/69 devices are the smallest footprint DTV and multimedia demodulators available, making them ideal for ultra-thin iDTV designs either directly on the main TV/STB board or inside a compact module. The Si2168/69 devices require no specific, costly components, thus simplifying the system BOM and reducing cost. The new demodulators also use only two power supplies, resulting in the industry's lowest power dissipation (450mW typical) for the most computation-intensive DVB-T2 mode.

Samples and production quantities of the Si2169 and Si2168 demodulators are available now in 7 x 7mm 48-pin QFN packages. The Si2169 and Si2168 demodulators are priced at $9.94 and $7.92, respectively, in 10,000-unit quantities. Silicon Labs also provides comprehensive evaluation platforms for video front-end designs.

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