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Conexant tuner suits FTA satellite STB receivers

Posted: 23 Jul 2004 ?? ?Print Version ?Bookmark and Share

Keywords:conexant systems? rf satellite tuner? cx24113? satellite tuner?

The new low-power RF satellite tuner from Conexant Systems Inc. is designed for free-to-air (FTA) satellite STB receivers. According to the company, they developed the device to address the demand for low-cost, high performance tuners in emerging digital television markets in Europe, India and Asia-Pacific.

"The availability of hundreds of channels of free programming has provided manufacturers and retailers with a new and growing market for compact, low-cost receivers," stated Jeff Crosby, VP of Conexant's STB products. "Our new tuner allows customers to meet the size and cost targets necessary to deliver high-volume STBs at a competitive price point."

The CX24113 is a highly integrated satellite tuner solution that incorporates an advanced fractional-N synthesizer, inter-integrated circuit (I?C) compatible serial interface, a fully integrated local oscillator and variable baseband filters. It also includes a standalone LNA that can be used for a loop-through design or can provide enhanced sensitivity for FTA applications. The low-power chip also features an improved power supply rejection ratio (PSRR), which reduces BOM cost, and requires a single 3.3V supply. The device also includes a built-in auto-tuning machine that eliminates the need for software calibration and accelerates the power-up time, and the on-chip fractional synthesizer enables fine frequency step size without adversely affecting lock time.

The CX24113 is packaged in a 36-pin QFP no lead and is priced at $2.25 in production quantities. Production quantities are scheduled for the Q4 of 2004.





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