Cutting RF power in W-CDMA phones News & Analysis 6/30/2004 Post a comment The spread-spectrum wireless communications standard, IS-95/3GPP, embodies stringent specifications for linearity and adjacent-channel power ratio (ACPR), says this Maxim engineer. The power amplifier does not operate continuously in voice mode. When the phone user isn't speaking, it runs at a half rate (50 percent of the time) or at a one-eighth rate, so there's no worry about the phone's heating during voice mode. But in data mode the PA runs continuously until the data transmission is complet
Power reduction remains top priority for 3G mobiles News & Analysis 6/30/2004 Post a comment Earlier this year, Vodafone chief executive officer Arun Sarin said that product quality deficiencies would slow the rollout of third-generation (3G) mobile phones. They are bulky, they get hot, and they don't have enough battery life," he said. Rob Keenan uses this as the kick-off point from an EE Times' article package on cell phone power managmenet. The big issue is in W-CDWA power consumption, he warns.
DVD players, LCD screens driving DTV adoption News & Analysis 6/30/2004 Post a comment High-quality LCD and plasma screens capable of showing crisp, vivid images, coupled with the popularity of DVD players, are coaxing a growing number of consumers to buy digital televisions. For CMP's TechWeb.
My Way or the Highway Product News 6/30/2004 Post a comment Virtual IDM Approach Provides One-Stop Shop For All Aspects Of Complex IC Design Through To Manufacturing Services and Volume Silicon Delivery
The Next Generation Floppy? Product News 6/30/2004 Post a comment 100% Guaranteed Biometric Security ClipDrive Bio flash drive utilizes state of the art security solutions such as biometrics and seamless AES based encryption to deliver unparalled security for the transportation of sensitive data.
Timing is Everything Product News 6/30/2004 Post a comment Leading Provider of Timing Solutions Secures Design Wins at Major Vendor to Provide PC Clock Devices for Next-Generation, High-Performance Desktop Platforms
Stacking Up Against the Competition Product News 6/30/2004 Post a comment Staktek and Toshiba America Electronic Components, Inc.
Announce 576Mb Network FCRAMTM
Stacked and packaged DRAM doubles current industry standard for enterprise network technology
Digitale Schnittstelle gibt WLAN neue Möglichkeiten News & Analysis 6/30/2004 Post a comment Die räumliche Trennung von von WLAN-Modem und HF-Chip erlaubt eine Entwicklung des IP-Anbieters NewLogic. Die Technik beruht auf der Digitalisierung der Schnittstelle zwischen den beiden Funktionseinheiten und gibt WLAN-Chipdesignern eine Reihe von Vorteilen an die Hand.
500-mA LDO stresses thermals Product News 6/29/2004 Post a comment Advanced Analogic Technologies' AAT3239
is a low-dropout regulator (LDO) designed for high continuous load currents and with particular attention to the device's thermal characteristics for maintaining an overall high level of performance. The 500-mA source, for battery-powered applications, features fast line and load transient response, high-speed turn-on and shut-down, and a high power-supply-rejection-ratio (PSRR).
Sharp takes stake in German TV manufacturer Loewe News & Analysis 6/28/2004 Post a comment Japan's Sharp Corp. is taking a stake in the battered German consumer electronics maker Loewe AG, a move that will allow Loewe to accelerate its move to flat-screen TV production. Sharp will hold a nearly 10-percent stake in Loewe worth 4.3 million euros ($5.2 million) in the form of a shared capital, the German company said. From Kronach, Germany, Christoph Hammerschmidt filed this report.
Intel rolls first 64-bit server CPU News & Analysis 6/28/2004 Post a comment Answering the competitive threat from Advanced Micro Devices, Intel Corp. officially rolls out Monday (June 28) its first X86 processor capable of handling 64-bit data.
VIA's x86 MPUs supports Windows CE 5.0 Product News 6/28/2004 Post a comment VIA Technologies, Inc, is now supporting Microsoft Windows CE version 5.0 embedded operating system, formerly codenamed "Macallan", with dedicated technical compatibility and full driver support.The VIA move further substantiates the migration of x86 processors into the embedded space.
Intel finds flaw in some new chip sets News & Analysis 6/28/2004 Post a comment Intel Corp. is recalling an estimated 10 to 15 percent of the pre-release shipments of its latest desktop chip sets after it found a manufacturing flaw that could make some systems hang up or fail to boot.
Miniature VCXO Available In Frequencies Up To 180MHz Product News 6/24/2004 Post a comment Nihon Dempa Kogyo (NDK) announces the availability of the NV7050SA series, a miniature Voltage Controlled Crystal Oscillator (VCXO) available in the frequency range of 1.544~180MHz. The miniature hermetically sealed 6 pad SMD package measures only 7.0x5.0mm with a thickness of only 1.6mm. The NV7050SA delivers a CMOS output in the 1.544~80MHz frequency range and a PECL output in the 80~180MHz frequency range.
Blog Make a Frequency Plan Tom Burke 17 comments When designing a printed circuit board, you should develop a frequency plan, something that can be easily overlooked. A frequency plan should be one of your first steps ...