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posted in April 2003
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Shared-Memory Fabrics Meet 10-Gbit Backplane Demands
Design How-To  
4/23/2003   Post a comment
Questions are arising in the sector about a crossbar fabric's ability to provide the scalability and cost required in today's high-seed networking equipment designs. With that in mind, designers should consider making the shift to shared-memory fabric architectures.
ZIF Makes Dual-Band WLAN Radios Practical
Design How-To  
4/22/2003   Post a comment
Supporting 802.11a, b, and g operation in a superhet radio architecture is not a practical solution for today's WLAN radio designers. To reduce component counts, engineers should consider a ZIF approach. Here's why.
DSP Design Services: Finding the Right Development Partner
Design How-To  
4/22/2003   Post a comment
Outsourcing is now common practice in the technology industry. This is in line with the modern business practice of maintaining the core business internally, and outsourcing non-core activities. Outsourcing of DSP projects contain some particular challenges that may not be present for ASICs, PCBs, FPGA, and software development. Shane Tonissen, Calyptech's CTO, identifies the major challenges associated with DSP outsourcing, and provides guidance as to how the right outsource partner can overcom
It's a Switcher - Part 4
News & Analysis  
4/21/2003   Post a comment
In part 3 of this four-part series, Sanjaya Maniktala examined Buck ICs, the "Type 2s" in his topology. Here, he turns to the sensing schemes that are critical to load regulation. Whether we're looking at negative-to-positive or negative-to-negative transitions, current sensing and better output regulation can be implemented by using an op-amp like an LM324. This final article installment examines where the amplifier can be inserted in the flyback chain.
Analog controller balances power, precision and cost in handhelds
News & Analysis  
4/21/2003   Post a comment
Wearing pulse monitors and other instruments to the health club? Our fascination with gadgets extends from airports and convention centers to the most intimate of settings. These devices have much in common: A CPU and sensor interface that's accurate, cheap, and runs from a coin cell. A Texas Instruments' authority gives details using a glucose meter example.
AMD woos conservative server market with Opteron processor
News & Analysis  
4/21/2003   Post a comment
Advanced Micro Devices Inc.'s long-awaited Opteron server processor will make its official debut Tuesday, but it may take years before the success of the company's landmark chip can be judged.
Power struggle
News & Analysis  
4/21/2003   Post a comment
Look inside any portable or wired system these days and the density of the design is immediately impressive. What is not as readily apparent are the power management issues designers must grapple with as they tie together a growing number of subsystems, all running at different operating voltages.
Intrinsity readies low-power spin of FastMATH processor
News & Analysis  
4/21/2003   Post a comment
With general sampling underway of its flagship product, the 2GHz FastMATH adaptive signal processor, Intrinsity Inc. is readying a low-power version of the chip for space-constrained designs.
Design for verification methodology allows silicon success
Design How-To  
4/18/2003   Post a comment
In this detailed whitepaper, Synopsys authors Rindert Schutten and Tom Fitzpatrick set forth a new "design for verification" methodology based on assertions and multi-level interface design. The methodology unites dynamic and formal tools, and leverages verification IP.
Disk drive prices seen headed for further erosion
News & Analysis  
4/18/2003   Post a comment
After a brief respite in the fourth quarter of 2002 and earlier this year, the disk drive market is again facing strong pricing pressures that have forced manufacturers to reinstate sales incentives in an attempt to lure back skittish distributors.
Consumer success: it comes down to innovation
Design How-To  
4/18/2003   Post a comment
The entertainment industries are on a crusade to add "content protection" technologies to all sorts of digital products.
Chip makers look for a few good system-level design tools
Design How-To  
4/18/2003   Post a comment
Where are the system-level design tools that we need for systems on chips?
Ten trends to look for in CE product development
Design How-To  
4/18/2003   Post a comment
There are several key trends in consumer electronics (CE) products that may guide developers in the years ahead.
Pay attention to design patterns in embedded high availability net systems
Design How-To  
4/18/2003   Post a comment
Uninterrupted service is expected from many of the connected embedded systems that surround us every day: the phone system, automated banking and credit card verification.
Wireless, embedded devices find common ground in mesh network
Design How-To  
4/18/2003   Post a comment
For embedded designers considering wireless communications as a way to connect distributed devices together, interest in mesh networks is especially strong, especially where efficiency in power, memory, and processing power is of particular concern.
USB on-the-go: opening up consumer/PC connectivity
Design How-To  
4/18/2003   Post a comment
The On-the-Go (OTG) Supplement to the USB 2.0 Specification opens up a vast range of exciting functionalities for USB-enabled devices in many embedded and consumer devices.
How to meet real-time requirements in embedded distributed systems
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4/18/2003   Post a comment
When viewed as a whole, many embedded systems, particularly in automobiles and aircraft are by their nature distributed: they are connected to sensors and actuators in various different parts of the vehicle.
Creating audio applications with Bluetooth
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4/18/2003   Post a comment
Recently, the Bluetooth community has developed specifications that define how to use streaming audio over a Bluetooth link.
Optimizing multimedia software for consumer products
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4/18/2003   Post a comment
Audio and video software for consumer media products can be quite complex, combining real-time signal processing, network protocols, complex I/O, and sophisticated user interfaces.
SystemC, transaction level modeling simplifies capture
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4/18/2003   Post a comment
IP companies have heralded a new age in platform-based design for years - ever since semiconductor integration capacity reached the point where entire systems could theoretically be integrated into a single die.
Synthesizable analog IP key to embedded SoC platforms
Design How-To  
4/18/2003   Post a comment
Perhaps, the most compelling new trend in system-level embedded design is the concept of application "platforms".
Abstraction packs power for multi-platform development
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4/18/2003   Post a comment
More embedded developers are being asked to design systems that run on more than one hardware platform and sometimes under more than one operating system.
ASIC/ASSP platform speeds development
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4/18/2003   Post a comment
As technology advances, system-on-chip devices tend to absorb and integrate more functionality from surrounding systems. It is rapidly becoming impossible to develop an SoC from scratch: The amount of knowledge and experience required of the design team would make the project unmanageable, prohibitively expensive or would increase the design time so much that the device would be obsolete before its introduction.
Method offers snapshot of SoC operation
Design How-To  
4/18/2003   Post a comment
With an ever-shortening development cycle, and often several generations of products being produced in parallel or in rapid succession, the need for standardized embedded tools and capabilities that enable quick analysis and debug of embedded intellectual property (IP) is a critical factor in keeping system-on-chip verification manageable.
Taiwan DRAM makers take up arms against Hynix
Product News  
4/17/2003   Post a comment
In a rare show of solidarity, several of Taiwan's DRAM suppliers are asking the government there to investigate Hynix Semiconductor for possible fair trade violations.
Jitter Impacts on Equalized Link Performance: Part 1
Design How-To  
4/17/2003   Post a comment
There's no doubt that 5- to 6.25-Gbit/s backplanes will become the de-facto standard in the communication arena. But to get there, designers need to tackle some tough challenges. In Part 1 of this series, we'll examine how time and frequency domain analysis can help.
Corning to shut CRT glass plant
News & Analysis  
4/16/2003   Post a comment
Linear's 3Q profits swell
News & Analysis  
4/16/2003   Post a comment
Duty-cycle is one key to buck converters' output current capability
News & Analysis  
4/16/2003   Post a comment
More thoughts on buck regulators: The most critical factor in DC-DC converter circuits is the load current capability, writes this On Semiconductor apps engineer. Whether you're using an internal or external FET, the sizing of the switch will be a function of its current rating. The overall power supply circuit also depends on the input-output voltage relationship, the inductor value, and switching frequency. Based on one of On's switching regulator circuits, this piece offers advice for picking
It's a Switcher - Part 3
News & Analysis  
4/16/2003   Post a comment
In part 3 of this four-part series, Sanjaya Maniktala examines Buck ICs, the "Type 2s" in his topology. Here, the Drain/Collector of the FET switch is typically connected to the control sections. Some of the versatility of the LSD cell is lost, he says. But the Type 2 is actually a good choice for positive-to-positive Buck regulators. This article shows how.
The Seven Faces of the OSI Network Model: Part 2
Design How-To  
4/16/2003   Post a comment
Designers can no longer think of the OSI model as simply a stack. Understanding this layered architecture is vital to building intersystem and intrasystem communication in system designs.
The Seven Faces of the OSI Network Model: Part 1
Design How-To  
4/15/2003   Post a comment
Designers can no longer think of the OSI model as simply a stack. Understanding this layered architecture is vital to building intersystem and intrasystem communication in system designs.
Next Gen Storage Networks
Design How-To  
4/14/2003   Post a comment
Spread spectrum clock reduces EMI for hard disks
News & Analysis  
4/14/2003   Post a comment
Spread Spectrum Clock Generation (SSCG) is an efficient approach to reducing electro-magnetic interference emissions in many high-speed digital systems including hard disk drives.
Thinking of using transparent GFP for long haul storage networks?
Design How-To  
4/14/2003   Post a comment
The Transparent Generic Framing Protocol (GFP-T) represents a new technique to extend storage area networks based on Fibre Channel to remote locations far beyond the data center.
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