Project Wireless - February 2009 - (Page 11) PrOjeCT low parasitic capacitance on the lines, and the video mode with or without audio. all of these design challenges are solved using a single ic (see Fig. 2) that can route the microphone path, audio output path, video input/output path, and usB data bus with no interference between them. the audio path (l and r) must be able to handle the negative signals of up to 39 mW for headphones. the ac-coupled video output is recommended for low dc power consumption in portable applications. dual-camera applIcaTIonS For 3g phoneS as 3g technology becomes more mature, it will feature strong video conference capability with faster throughput. this capability will necessitate a higher-resolution camera for personal picture taking with a lower-resolution camera for video conferencing. for flip or swivel phone designs, both camera modules are probably located at flip side due to limited space in base side with base-band and application processors. this presents challenges for designers since double wires can be required if not accommodated properly. this is even a more daunting design Contents viewpoint Smart integration design Signal Paths in 3G and Feature / Smart Phone Apps Antennas for Handheld devices SPonSor aDvertISement SynAPSe SnAP 802.15.4 KitS AvAilAble At Digi-Key from digi-Key, synapse’s award-winning wireless mesh network technology is now available in the eK2100 starter kit. the eK2100 provides an out-of-the-box experience with the instant-on mesh network and the full power of synapse’s rf engine™ hardware, snap® network firmware, and portal® desktop software. install the synapse portal software on a Windows pc (2K, Xp, vista), and experience how easy it is to program an application. more than just a diagnostic or commissioning tool, portal is a complete wireless application development environment. everything is provided to create and wirelessly prototype embedded applications. Home Page Product Training Module Online Ordering Suppliers | vOLuMe 1 | nuMber 1 clIck here for aDDItIonal InformatIon FiG. 2 uSb connecTor SharIng cIrcuIT IS uSed In Tv phone deSIgnS. Catalog 11 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 http://ad.doubleclick.net/clk;211153814;32661511;q?http://search.digikey.com/scripts/DkSearch/dksus.dll?lang=en&site=US&KeyWords=746-1018+|+746-1019&x=0&y=0
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