Project Wireless - February 2009 - (Page 6) PrOjeCT phone. Wireless standards such as nfc, Bluetooth low energy, and uWB build on the success of the adoption of Bluetooth, but take wireless connectivity to new levels and open a wide range of new applications. consumers are hungry for these technologies to be integrated into mobile handsets, but only if there is no adverse effect on its usability, design or performance. and although some current high-end handsets have rewritten the rules on how much a mobile phone can sell for, cost is still a limiting factor for the large volume market segments. the integration challenge is therefore a delicate balancing act. for example, if a mobile phone maker wishes to include fm, gps, uWB, and nfc, the average handset does not have the space to house an additional four radio ics. one way to approach this is to adopt the integrate-everything-now approach. this ignores any negative effects that combining multiple technologies might create, including whether or not multiple radios will “play nicely” when side by side. perhaps even more fundamental is the question of whether handset designers actually want certain technologies to be integrated on a single piece of silicon. if two technologies have wildly different attach rates in mobile phones, combination chips will waste money and power. With the recent launch of its Bluecore 7 product range, csr has opted for a strategy of what it calls “smart integration.” a highly integrated chip, Bluecore 7 is a good example of the way in which functions can be combined that makes sense for the handset designer (see Fig. 1). this single-chip cmos ic measures less than 4 x 4 mm, yet includes Bluetooth v2.1 + edr, Bluetooth low energy, enhanced gps (egps), an fm transmitter, and a fm receiver with rds. smart integration combines complementary technologies in a single chip with performance and power that are at least equal to, if not better than, separate chips. there are Contents viewpoint Smart integration design Signal Paths in 3G and Feature / Smart Phone Apps Antennas for Handheld devices FiG. 1 SmarT InTegraTIon referS To The abIlITy of dIfferenT SySTemS To Share reSourceS, and To be aware of whaT The oTher on-chIp elemenTS are doIng. | vOLuMe 1 | nuMber 1 number of people now using their phones in this way. also technologies such as fm radio with radio data services (rds) functions, or gps for navigation and the added benefits of location-based services (lBs) are attractive functions that are set to find their way into a large number of handsets. other short-range wireless technologies are also lining up to nudge their way into the tightly packed mobile Home Page Product Training Module Online Ordering Suppliers Catalog 6 http://ad.doubleclick.net/clk;211088645;32661511;z?http://www.digikey.com http://ad.doubleclick.net/clk;211088645;32661511;z?http://www.digikey.com http://ad.doubleclick.net/clk;211088750;32661511;w?http://digikey.com/PTM/PTMMaster.page?site=us&lang=en http://ad.doubleclick.net/clk;211088807;32661511;z?http://ordering.digikey.com/ordering/addpart.aspx?site=US&source=search http://ad.doubleclick.net/clk;211088983;32661511;e?http://digikey.com/Suppliers/SupplierIndex.page?site=us&lang=en http://ad.doubleclick.net/clk;211091911;32661511;p?http://dkc1.digikey.com/us/en/pdf/Current.html
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