Under the Hood of the Kyocera K112: Low-tier phone leans on analog Teardown 2/16/2005 Post a comment First launched in Brazil, the K112 handset includes games, calculator, ringtones, and an alarm. On a more technical note, the handset also features an internal antenna— an amazing bit of RF engineering in itself—to bypass those breakage-prone stubs and whips. From the February Planet Analog magazine folio, Portelligent's David Carey was impressed.
MOSFET or bipolar, which should you use? Design How-To 2/9/2005 Post a comment MOSFET or bipolar, which should you use? Recent developments in bipolar transistors position the technology to rival or exceed MOSFET performance in many applications. From powermanagementdesignline.com, a Zetex engineer reviews the characteristics and benefits of each technology to extract the best system performance.
Application processors duel Teardown 2/7/2005 Post a comment Convergence of functionality in handset designs is constantly raising the bar for value-added features, such as cameras, games, music playback and video capturing. It is estimated that the average cost of a handset will drop from about $125 today to $110 by 2008. In contrast, the average cost of the ICs within the handset will increase from approximately $40 today to $44.50 by 2008, as consumers demand higher functionality at a low price. A versatile application processor is key to achieving a s