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ISSUE DATE: SEPTEMBER 17, 2001 OPTIONS
Signal-processing core, Network processors, Fan controller, Digitally controlled pots


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September 17, 2001 - In This Issue

[Technology Report]
Network Processors Evolve To Meet Future Line Speeds
Continuous change in network speeds and services has forced network equipment designers and network-processor (NP) vendors to re-evaluate their designs. The quest is on for new and better ways to handle not only the higher speeds, but also the...  — Louis E. Frenzel

[Product Innovation]
Signal-Processing Core Enables Real-Time Communications
In high-speed digital signal-processing systems, designers must keep pace with the rising speeds of continuously incoming signals, while simultaneously achieving excellent filter performance in terms of flatness across the bin (data point), and...  — Alfred Vollmer

[Design Application]
Intelligent Controller Adds "Smarts" To Basic Fan For Quiet, Effective Cooling
Cooling electronic systems has always been an important design consideration. As electronic systems continue to shrink and become more powerful, heat dissipation isn't just important—it's a critical design issue. Today's higher levels of IC...  — Contributing Author

[Ideas For Design]
Digitally Controlled Pots Program PWM's Features
The circuit described here is a switching 12-V, 10-A power supply whose topology is that of a conventional single-switch forward converter (Fig. 1). To derive the pulse-width modulation for its...  — Contributing Author

[Ideas For Design]
Embedded Processor Directly Drives An On-Screen Display
Visualization of measurement results or application status is an increasingly requested feature. However, the generation of images on a TV screen does not always require expensive cards or chips. In some cases, a black-and-white picture will...  — Contributing Author

[Ideas For Design]
SOT-223 High-Voltage Transistor Creates LCD Heater
Occasionally, components cannot be obtained that function over the full temperature range of a product. For example, LCDs have a very limited operating-temperature range of typically 10°C to 50°C. One way to eliminate complications at the...  — Contributing Author

[Editorial]
Will We Ever Get Back In The "Zone"?
You know the feeling when you're driving along and every traffic signal turns green just as you approach the intersections? Similarly, sometimes in bowling or baseball, the bowler or pitcher can seemingly throw nothing but strikes. In cases like...  — Dave Bursky

[Pease Porridge]
Bob's Mailbox
Dear Bob: Re: "What's All This Motorcycling Stuff, Anyhow?" (Electronic Design, Feb. 9, 1998, p. 141). I just ran across it and I have a theory for why the front brakes on bikes would be controlled by the left hand....  — Bob Pease

[Viewpoint]
What Will It Take To Get The Perfect HDL?
A colleague of mine recently asked what I would wish for in the "perfect" hardware-description language (HDL). Well, I say, be careful about what you wish for because you just might get it. I believe that numerous elements are required to...  — Contributing Author

[Editor's Notebook]
Digital Audio Broadcasting: A New Frontier
Traditional radio services in the U.S. are entering a new era of digital audio broadcasting (DAB). Development efforts have been under way for over five years. Now, using the S-band frequency spectrum, two service providers—XM Satellite Radio...  — Ashok Bindra

[Letters]
Letters
Industrial/University Liaison As a university professor, I was pleased to read "Engineering Education: Who's Teaching the Teachers?" [June 18, p. 22]. Maintaining laboratories and the curriculum to stay on...  — Various

[40 Years Ago]
Design Of Arecibo Radar On Schedule
By early next spring, the huge 430-mc radar being built near Arecibo, Puerto Rico, for the Advanced Research Projects Agency of the Defense Department should be collecting data on electron density in the iono-sphere. This is an estimate made in...  — Steve Scrupski

[40 Years Ago]
IBM Stretch Computer Utilization In Business Explained
Expected usefulness of the IBM 7030 Stretch computer for business data processing was described at the 16th National Meeting of the Association for Computing Machinery in Los Angeles, Sept. 5-8. William V. Crowley of the Corp. for Economic &...  — Steve Scrupski

[Forefront]
Extremely Parallel Processor Sets New Benchmark
At July's Platform Conference in San Jose, fabless IP firm PACT Corp. of Munich, Germany, revealed plans to make the first derivative of its eXtreme processor platform (XPP) available for licensing. Comprising an array of 128 processing elements...  — Ashok Bindra

[Forefront]
PICMG Working On General Switch-Fabric Board Architecture
PICMG is working on a non-PCI backplane/board architecture, PICMG 3.0. It defines a board configuration designed to serve as the base for the different switch fabrics now emerging for general use—InfiniBand, StarFabric, RapidI/O, Ethernet...  — Ray Weiss

[Forefront]
Environment Speeds Platform-Based SoC Design And Verification
Getting the most from system-on-a-chip (SoC) designs requires optimal design of the logic surrounding the embedded processor. As SoCs have increased in complexity, optimizing the interfaces between the processor and its peripherals has become a...  — David Maliniak

[Forefront]
MPEG-4 Coprocessor Mates With RISC Core
Multimedia coprocessors are in demand, but designing one is no easy task. ARM processor core users now have an alternative with ARM's MOVE multimedia coprocessor architecture, which can be married with an ARM processor core. This...  — William Wong

[Forefront]
Itanium Processors Will Gang Up To Perform 13.6 Teraflops
Intel's Itanium family of processors will be used to build a distributed scientific computing system that Intel expects to be the largest of its kind in the world. Known as TeraGrid, this system will link 3300 Itanium processors. According to the...  — Lisa Eccles

[Forefront]
Flying Robot Turns Science Fiction Into Science Fact
Do you remember that scene in Star Wars where Ben Kenobi teaches Luke Skywalker how to use a lightsaber by having him spar against a spherical, flying robot? Scientists at NASA certainly do. In fact, they say that the little, laser-shooting...  — Richard Gawel

[Forefront]
PHY Chip Processes Sonet OC-192, 10-Gbit/s Ethernet
With both Sonet and Ethernet optical transmission speeds at 10 Gbits/s, semiconductor vendors can now make networking chips that can actually handle both protocols. A good example is the Decathlon device from Paxonet Communications....  — Louis E. Frenzel

[Forefront]
Turbocoder IP Cores Keep Bit-Error Rates Low
Throughput of 1 Mbit/s with performance of 1.5 GOPS is featured in a family of turbocoder IP cores from Adelante Technologies. Turbocoding is used for forward error correction in a variety of wireless data communication systems, including 3G/UTMS...  — David Maliniak

[Forefront]
Gate-Drive Optocoupler Targets Low-Power Motor Control
The HCPL-0314 gate-drive optocoupler from Agilent Technologies is the world's smallest gate-drive optocoupler, the company claims. Supplied in a small-outline SO-8 package, its small size helps reduce manufacturing costs while delivering superior...  — Lisa Eccles

[Forefront]
Repeater Chip Opens Up InfiniBand Design
Sometimes it's the small things that count, especially in networking. For example, in switch fabrics, implementations may need more than just the standard nodes—HCAs, TCAs, and switches. One key part is a repeater, a chip that strengthens and...  — Ray Weiss

[Forefront]
Dedicated Testers Speed Up, Simplify Jitter/Timing Analysis
Many applications require de-signers to measure jitter and analyze the timing of fast clock and data signals. Designers typically make these measurements with general-purpose digital scopes with software packages added on for the purpose. But LeCroy...  — John Novellino

[New Products]

• Circuit Protection Devices  — Staff

• Analog  — Staff





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