Single-chip STB tuner

16 June 2004 Telecoms, Datacoms, Wireless, IoT

Zarlink's ZL10038 single-chip tuner IC fully complies with the new DVB-S2 (digital video broadcast-satellite 2) international transmission standard, and is designed for advanced satellite set-top boxes. The wideband direct conversion tuner supports both higher order 8-PSK, and 16-QAM, 16-APSK modulation schemes. With alignment-free operation, the company says it provides the necessary RF-to-baseband performance required. DVB-S2 receiver designers must currently choose between a lower-specification integrated silicon tuner designed for DVB-S (QPSK) applications, or a more expensive high-performance 'can' tuner solution. However, silicon tuners do not deliver the low implementation losses needed to receive 8-PSK and 16-QAM signals in real-life operating environments, says Zarlink, which include an RF spectrum crowded with strong unwanted signals, signal impairments caused by adverse weather conditions, and poorly installed equipment. The compact tuner design may be implemented in less than 30 x 20 mm space.

Memec SA, 011 897 8600

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