High Performance Terrestrial DTV Demodulator from NEC

6th September 2007

ES Admin

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NEC Electronics Corporation has introduced the second generation orthogonal frequency division multiplexing (OFDM) demodulation LSI, to facilitate compact and low-price set-top boxes (STB) and integrated digital TV (iDTV) with high quality reception of European digital terrestrial broadcasts.

The μPD61541 is designed for use between the tuner and the MPEG decoder. The uPD61541 can match both low cost ‘CAN’ and Silicon tuners through a wide and flexible IF range. It has every function required to demodulate transmissions from terrestrial television broadcast received by the tuner, to an error free MPEG transport stream (TS) which can be processed by an MPEG decoder LSI such as NEC EMMA.

Offering hardware and software compatibility with NEC Electronics first generation COFDM IC, uPD61541 will enable STB and iDTV designers to make a fast development and benefit from NEC Electronics’ experience in the European digital terrestrial broadcasts.

The uPD61541 is optimized to perform at high levels even in the harshest environments, with a built-in recovery circuit that eliminates delayed or reflected signals, and offer best class performance providing comfortable margin against Nordig Unified 1.0.3 requirements.

Combining the μPD61541 with a suitable LSI which converts TS data to audio/video signals, such as NEC Electronics’ μPD61216 or uPD61210 MPEG decoder, enables the affordable and speedy development of STBs or iDTVs that receive European digital terrestrial broadcasts, or advanced tuners with OFDM functions, which require smaller footprints and must perform in harsh environments.

Since the first launch in the United Kingdom in 1998, terrestrial digital broadcasting has spread to other countries in Europe, but reception of these broadcasts demands higher performance from OFDM-based devices to help avoid data errors due to reflective waves, especially in mountainous regions. In addition to this higher performance, the STBs and tuners must also meet cost and space requirements.

NEC Electronics has introduced the μPD61541 to answer this market demand, support the spread of terrestrial digital broadcasts in Europe, and will continue to offer solutions for digital television, STBs and other applications with LSIs based on NEC Electronics’ EMMArchitecture™.