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posted in November 2002
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Microcontrollers/Microprocessors Out in Force at Embedded Systems
News & Analysis  
11/15/2002   Post a comment
The East and West Coast Embedded Systems Conferences are always great shows for learning about the latest and greatest embedded software and hardware products. TechOnLine's Jim Lipman discusses some of the more interesting recently announced microprocessor, microcontroller, and silicon cores, several which will be featured at the upcoming show.
AMD cuts workforce by 15%
News & Analysis  
11/14/2002   Post a comment
Solving FDD Compliance Issues with 3GPP Libraries
News & Analysis  
11/14/2002   Post a comment
The complexity of the 3GPP FDD signal format imposes new linearity and dynamic range requirements on designers, making compliance a nightmare. Fortunately, new design libraries are arriving to help.
From wall plug to nano circuit: power chips go hand-in-hand with SoC technology
News & Analysis  
11/14/2002   Post a comment
The conversion from bus voltage to final nanoscale load often requires low voltages at hundreds of Amperes, says this prolific Fairchild product planner. The key to efficiency, he writes in the November 18th issue of Planet Analog magazine, may have a lot to do with power factor correction... Reno Rosetti also authored an online guest column (an opinion piece) on the prospects for putting power management under digital control.
Stabilizing voltage mode converters with ceramic output capacitors
News & Analysis  
11/14/2002   Post a comment
Power supply designers have a variety of choices available when selecting output filter capacitors. This selection is typically steered by the initial design goals, whether it is lowest cost, smallest size, lowest ripple voltage, or transient load response. These Texas Instruments engineers say there's a lot of mileage to be gained from ceramics, like small size and low cost. Just watch that ESR, they advise.
Stabilizing buck converters with transconductance amplifiers
News & Analysis  
11/14/2002   Post a comment
Synchronous buck converters have received great attention in low power, low voltage DC-DC converter applications due to their high efficiency. In this application note, International Rectifier engineers show how to stabilize buck converters using as transductance device as the error amplifier in the voltage regulation circuit. A transconductance amplifier, they point out, multiplies the difference of input voltage with a certain gain to generate a current into the output node. These guys offer t
Switch-Based Interconnects Solve Comms Designer's Woes
News & Analysis  
11/13/2002   Post a comment
Switched-based interconnects, like RapidIO, allow multiple processors to simultaneously communicate without impacting system performance. Here's a look at why these interconnects will win out in comms equipment architectures.
Commercialization Issues of MEMS/MST/Micromachines: An Updated Industry Report Card
Product News  
11/13/2002   1 comment
Like virtually all other electronic-industry segments, microelectromechanical Systems (MEMS) did not escape the economic slowdown of 2002. Roger Grace, President of Roger Grace Associates, presents a "report card" on the MEMS industry, comparing where it is now versus 2001, and explains the reasons certain MEMS parameters received the grades they did.
Virtual Concatenation: Knowing the Details Part 1
Design How-To  
11/12/2002   Post a comment
Virtual concatenation is being touted as a savior in today's metro networks. But, designers will face tough implementation issues when incorporating virtual concatenation in chip and system designs.
Flash memory defends its crown
News & Analysis  
11/11/2002   Post a comment
Power consumption, speed, and reliability are exerting ever more influence on the future of the nonvolatile memory (NVM) industry, leading dozens of companies to explore new technologies.
Suppliers seek redemption in WLAN
News & Analysis  
11/11/2002   Post a comment
Suppliers seek redemption in WLAN
News & Analysis  
11/11/2002   Post a comment
IDT takes on Motorola's hegemony
News & Analysis  
11/11/2002   Post a comment
Brocade achieves data networking edge
News & Analysis  
11/11/2002   Post a comment
Vishay to acquire BCcomponents
Product News  
11/11/2002   Post a comment
NEC validates 90nm ASIC process
Product News  
11/11/2002   Post a comment
4G wireless nets blend voice with data driven services
Design How-To  
11/8/2002   Post a comment
Mobile wireless voice service ranks with the automobile and the television as one of the most universally adopted modern technologies.
A walk through the architectural challenges in delivering wireless data
Design How-To  
11/8/2002   Post a comment
In the wired Internet, where connections are provided to fixed locations, state information is relatively static, typically consisting of the connection point to the network and level of bandwidth delivered.
FPGAs versus DSPs: Effective implementations of 3G basestations
Design How-To  
11/8/2002   Post a comment
The evolution of 3G wireless network equipment is being driven both by business and technical issues.
Implementing antenna diversity inside small devices
Design How-To  
11/8/2002   Post a comment
By introducing antenna diversity inside handheld devices, it is possible to increase the overall system gain. For end users, this translates into higher throughput, increased range and more flexible use.
Multipath expands RF bandwidth
Design How-To  
11/8/2002   Post a comment
Managers of IT departments expect the demand for wireless data services to increase 250 percent over the next two years, according to recent reports.
Techniques mitigate interference between 802.11 and Bluetooth
Design How-To  
11/8/2002   Post a comment
Bluetooth is a personal-area-networking technology and as such may be used in areas where 802.11 is operating. Many devices will incorporate both technologies, and users will expect to use them simultaneously.
The horizontal effect: modular versus integrated wireless design
Design How-To  
11/8/2002   Post a comment
As is so often the case, one of the major trends in the wireless industry has less to do with what's feasible or optimal from an engineering perspective and more to do with what's sustainable from a business perspective.
UWB simplifies portable design
News & Analysis  
11/8/2002   Post a comment
Because ultrawideband (UWB) communications rely on an unusual wireless technology and suit a wide range of products, designing UWB into a system raises a number of questions.
Zero loss front end design targets cost/power/performance compromises
News & Analysis  
11/8/2002   Post a comment
Wireless LANs are growing in the marketplace as more users take advantage of the freedom to wirelessly access their data where it is most useful.
Microsoft spurs wave of tablet PC launches
News & Analysis  
11/7/2002   Post a comment
Microsoft today rolled out new Windows XP software for the tablet PC. But will the arrival of a more user-friendly operating system be enough to kick the market into gear?
Bringing a New Hierarchy to Software Radio Design
Design How-To  
11/7/2002   Post a comment
By using block-diagram system simulation software, designers can rapidly evaluate design strategies and prototype real-time implementation alternatives in software radio designs.
A Fast Algorithm to Decrease DDS Spurious Signals
News & Analysis  
11/7/2002   Post a comment
Alain Bourdillon, from University de Rennes, France, presents a filtering algorithm, based on the SVD (singular value decomposition) of the Hankel matrix of the signal. This algorithm decreases the level of spurious signals in Direct-Digital Synthesizer (DDS) applications. The spurious free dynamic range improvement of the signal after processing can be as large as 40 dB and depends mainly on the length of the sequence processed and on the accuracy of the calculations performed inside the algori
Strategies for Implementing Embedded Network Processing Software
News & Analysis  
11/6/2002   Post a comment
Designers using network processors can optimize product development with reusable software architectures.
PCB Design-Tool Progress Continues Slowly
Design How-To  
11/6/2002   Post a comment
Compared to chip design-tool development, advancements in the PCB design-tool arena are not very dynamic. TechOnLine's Jim Lipman discusses why he thinks PCB tool development is so slow and what PCB tool vendors need to do to address upcoming system-design problems.
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