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Pocket-sized DVB-T receiver targets PCs

Posted: 01 Dec 2005 ?? ?Print Version ?Bookmark and Share

Keywords:Micronas? MicStickD? reference design? DVB-T? DRX 3975D?

Micronas announced the immediate availability of MicStickD, a production-ready reference design which enables watching and controlling live DVB-T broadcasts on any USB 2.0-equipped desktop and notebook PC. The design includes Micronas' DRX 3975D COFDM (demodulator chip complies with COFDM, EBU DVB-T specs" target=_blank>coded orthogonal frequency division multiplexing) demodulator, a Microtune MicroTuner MT2060 digital TV tuner, and a Cypress EZ-USB FX2LP controller.

According to the press release, the DRX 3975D is the first COFDM demodulator to substantially exceed all requirements of the NorDig-Unified v1.0.2 Receiver Specification. This allows a single design for MicStickD to be compatible with all DVB-T reception standards worldwide.

The DRX 3975D uses advanced digital filtering techniques, in combination with a powerful A/D converter and PLL configuration, and it is designed to ensure a crisp viewing experience even under challenging adjacent channel conditions. A pre-SAW IF sense input enables fully autonomous and stable RF-AGC control of the MT2060, eliminating the need for additional RF-AGC circuitry. DRX 3975D implements a progressive digital algorithm in the channel estimator.

The Microtune MT2060 single-chip tuner is engineered to combine low power consumption with excellent radio frequency (RF) performance. Its single 16MHz crystal is sufficient to provide the clock signal for both the MT2060 and DRX 3975D. The Cypress EZ-USB FX2LP controller handles the high data rates of digital television.

The MicStickD tuner and capture driver is compliant with the Microsoft Broadcast Driver Architecture (BDA) standard for Windows. MicStickD fully complies with the USB 2.0 bus-powered specification.

The MicStickD reference design comes complete with schematics, Gerber files, Protel design files, a BOM and driver software. It is priced at $20 each in 100,000-piece quantities.

- Janine Love

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