Cable tuner draws less than 900-mW

Plano, Tex.—Designed to extend frequency and power efficiency for next-generation voice and data services, Microtune Inc.'s low-power multi-standard cable tuner draws less than 900-mW of power consumption.

The MicroTuner MT2068 broadband tuner can be integrated into data modems, VoIP modems, set-top boxes and other power-sensitive cable equipment to deliver digital voice, Internet and multimedia services in all-digital, 1-GHz expanded cable networks. Less than 1/4-inch square, the MT2068 supports multiple specifications, enabling manufacturers to develop multi-standard, multi-tuner products using one tuner design.

The MT2068 is a complete broadband tuner with integrated first intermediate frequency (IF) filter, low-noise amplifier and fully integrated automatic gain control. It features low phase noise and high linearity—technical parameters that are required to ensure not only minimum distortion in voice applications, but also reliability in high-speed Internet connections.

The tuner supports both DOCSIS 2.0-based VoIP cable modems and PacketCable-based embedded multimedia terminal adapters (EMTAs). It also handles 8-MHz intermediate frequency (IF) channels and provides improved EuroDOCSIS performance.

The MT2068 tuner is engineered to offer optimized isolation for better IF rejection which improves immunity to interference in cable networks with severe differences in signal strength across the input frequency band. This ensures premium performance across the entire network spectrum, even in intricate multi-tuner applications.

The MT2068 is packaged into a miniature 6-millimeter square chip that operates with a 3.3-V supply.

Pricing: $3 each in quantities of 10,000 units.
Availability: Sampling now; initial production is planned for the third quarter of 2008.
Datasheet: MT2068.

Microtune Inc.,

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