Simplifying video front-ends for TVs and STBs

12 June 2012

Simplifying video front-ends for TVs and STBs
Simplifying video front-ends for TVs and STBs

Si2169 multimedia demodulator is the first to merge DVB standards into single-chip solution.

Silicon Laboratories has introduced the broadcast video industry’s most advanced, single-chip multimedia demodulator, enabling developers to simplify the design of iDTV, set-top box (STB) and Blu-ray/DVD recorder products. The Si2169 device is the first demodulator to integrate the emerging DVB-T2 standard, advanced DVB-S2 standard, and existing DVB-T, DVB-S and DVB-C standards into a single CMOS chip supporting terrestrial, satellite and cable TV broadcast. The Si2169 is complemented by the Si2168, a pin-compatible DVB-T2/T/C demodulator designed for terrestrial and cable TV broadcast.

The Si2168/69 demodulators offer the industry’s highest level of DVB-T2 terrestrial broadcast performance and fully complies with the NorDig 2.2.1 and D-Book 7 specifications. Offering superior echo performance in all DVB-T2 transmission modes, the new demodulators enable the industry’s fastest DVB-T2 channel lock times under the most challenging echo conditions. In fact, Silicon Labs has implemented a special architecture to reduce DVB-T2 lock times to industry-leading values.

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.

“Leveraging our proven digital demodulation architecture, the Si2169 achieves excellent reception performance for each digital media type while reducing video front-end design complexity, power consumption and cost,” said James Stansberry, Vice President and General Manager of Silicon Labs’ broadcast products. “The combination of next-generation DVB-T2/S2 multimedia support and single-chip integration makes the Si2169 the industry’s most flexible and highest-performance demodulator solution available.”

The Si2168/69 devices are the smallest footprint digital TV 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 (450 mW typical) for the most computation-intensive DVB-T2 mode.

Samples and production quantities of the Si2169 and Si2168 demodulators are available now in
7mm x 7mm 48-pin QFN packages.

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