Satellite-TV tuner has integrated LNA

24 August 2005 Telecoms, Datacoms, Wireless, IoT

Zarlink Semiconductor has introduced what it claims is the first single-chip satellite tuner for FTA (free-to-air) satellite-DTV receivers. The ZL10039 includes a high-performance LNA (low-noise amplifier), which eliminates additional RF circuitry. A single-chip wideband direct conversion tuner, the device handles from 1 to 45 Msymbols/s and suits DVB-S (digital video broadcast-satellite), DSS (digital satellite system), and 8PSK (8-phase shift keying) receivers. When used in conjunction with the company's ZL10313 satellite demodulator, the device delivers the most integrated DTV motherboard on the market today, according to Zarlink. The ZL10039 and ZL10313 together make up the company's ZLE10541 reference design for a satellite receiver front-end. The front-end is implemented in state-machine fashion, as a hardwired block with built-in logic and control functionality, which the company believes is favourable compared to a software-intensive approach, thus cutting down on software overhead.

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