Microtuner MT2262 goes after U.S. DVB-H mobile market  

By Bernard Cole
iApplianceWeb
(06/23/05, 9:55:42 AM GMT)

Plano, Texas -- Microtune, Inc. has just introduced what it said is the industry’s first dedicated L-Band tuner targeted at the U.S. DVB-H mobile video market.

The Mobile MicroTuner MT2262 is a specialized, ultra low-power silicon TV tuner that supports the L-band frequency range (1670-1675 MHz) licensed for mobile broadcast TV services in the U.S.

James A. Fontaine, President and CEO of Microtune, said the new circuit is designed to bring high-quality broadcast TV and digital entertainment services to cell phones, laptops, PDAs and mobile handheld devices.

The MT2262 is a sister device to Microtune's MT2260 multi-band DVB-H TV tuner, the first member of the product line which the company unveiled earlier this month.

Fabricated in silicon germanium, the MT2262 is a single-chip tuner, engineered to deliver a low noise figure for outstanding sensitivity, high linearity for reduced interference and excellent phase noise for maximum video fidelity.

It includes all active circuitry required to implement the complete radio frequency (RF)-to-baseband tuner function. A single-ended architecture eliminates the need for a transformer balun, while the L-band low noise amplifier (LNA) has also been fully integrated.

The MT2262 operates from a 2.7V power supply and consumes 20-40 milliWatts in 'viewing' mode, depending on the severity of the reception environment. It features 9-milliWatt power-down and 250-microWatt sleep modes to further conserve battery power.

Fontaine said it allows the design of TV-enabled mobile phones that viewers up to 10 hours of TV viewing time on 2-inch or 4-inch displays using 800mAh or 1300mAh batteries, respectively, for their DVB-H handsets.

To learn more, go to www.microtune.com.

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