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Philips tuner chips simplify circuit board design

Posted: 15 Mar 2004 ?? ?Print Version ?Bookmark and Share

Keywords:satellite tuner ic? royal philips electronics? silicon tuner chip? tda8262? tda8263?

To address the growing market demand for the integration of simpler and more efficient satellite tuner ICs into STBs, PC cards and DTVs, Royal Philips Electronics has unveiled two silicon tuner chips.

Julian Humphreys of Philips Semiconductors, said, "Philips' new silicon tuner chips, together with the corresponding channel decoder IC, offers quick, uncomplicated and cost-effective implementation of front-end digital satellite reception."

Humphreys added, "The unique composites of the TDA8262 and TDA8263 satellite tuner chips mean that there is no need for specific RF components and alignments, giving digital STB, TV and PC Card manufacturers much easier and quicker development of applications as all the complex frequency tuner technology is already on board the IC."

Offered with a small size and low power requirements, the silicon tuner solution promises to simplify the entire circuit board design since the silicon tuner chips are now placed on the main board itself rather than an independent tuner can.

Compliant with DVB-S/DSS (Digital Video Broadcast Satellite/Digital Satellite System), the ICs feature the direct conversion of the RF signal which replaces all traditional IF filtering and intermediate conversion techniques, a wide range fully integrated oscillator that covers the European, American and Asian satellite bands with low phase noise performance, and a programmable baseband filtering for optimum signal handling.

According to Philips, the TDA8262 is much more compact than any other tuner solution as it is offered in a 5-by-5mm package and requires less than half the power of other solutions from a single 3.3V supply.

Aside from the basic functions of the TDA8263, the TDA8262 device adds an RF loop through to drive a second channel in a personal video recorder (PVR), and features extensive power down management.

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