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High-performance cable tuners offer low cost, compact form

Posted: 20 Oct 2010 ?? ?Print Version ?Bookmark and Share

Keywords:STB? cable tuner? RF?

Microtune Inc. said its three new universal digital QAM cable tuners deliver very high RF performance and allow cable set-top box (STB) manufacturers to simplify designs and reduce their BOM cost.

The members of the new MicroTuner MT208X familythe single-tuner MT2081, the dual-tuner MT2082 and the triple-tuner MT2084are made using a highly integrated, sawless, tuner-plus-splitter architecture, the company said. Cable operators can offer interactive, personalized video services such as HD, on-demand, time-shifted and downloaded video when the tuners are built into cable premises equipment, it added.

The MT2081 features an integrated RF loop-through amplifier and is ideal for basic STBs, including zapper boxes, digital conversion boxes, digital transport adaptors (DTAs), cable modems and low-cost entry-level products.

The companion MT2082, meanwhile, is a high-performance tuner with an integrated loop-through amplifier and an active 3-way splitter. Microtune said that the family's unique tuner front-end architecture supports the same sensitivity and linearity performance across all three tuners, in contrast with other RF configurations that offer different performance levels.

The companion MT2084 tuner accepts its RF input from the MT2082 and maintains very high signal quality. The MT2082 and MT2084 combined eliminate the need for RF splitter, amplifier and power-supply components.

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