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Digital QAM cable tuners tout high RF performance

Posted: 21 Oct 2010     Print Version  Bookmark and Share

Keywords:STB  cable tuner  RF 

Microtune Inc. reveals three universal digital QAM cable tuners touting high RF performance, simplified designs and reduction of BOM cost.

The members of the MicroTuner MT208X family—the single-tuner MT2081, the dual-tuner MT2082 and the triple-tuner MT2084—are 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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