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Content tagged with Internet of Things Designline posted in September 2002
Turning to Digital Crystals in GSM Transceivers
News & Analysis  
9/26/2002   Post a comment
VC-TCXO modules bring a size and cost penalty to next-generation GSM handset designs. Fortunately, DCXOs architectures are emerging that will addresses size and cost concerns in mobiles.
Dealing with the EDGE Evolution
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9/24/2002   Post a comment
EDGE is being touted as the next wireless plateau in the US sector. But to get there, designers must first deal with new modulation schemes, QoS support mechanisms, link adaptation, and more.
Silicon on Insulator
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9/23/2002   Post a comment
Better models, production methods expand SOI applications
News & Analysis  
9/23/2002   Post a comment
Silicon-on-insulator (SOI) will continue to find its place in high-performance applications and branch out into some of the networking and communications space.
Oxide isolation ramps next-gen process
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9/23/2002   Post a comment
Roughly every two years for the last decade and a half, a scaled CMOS technology generation has been introduced with about 70 percent smaller linear dimensions than its predecessor and transistors approximately 30 to 40 percent faster.
Buried oxide sharpens dopant profile
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9/23/2002   Post a comment
Silicon-on-insulator (SOI) sub-strates are considered among the most promising materials for the continued production of faster ICs with low power consumption.
ICs tailored for exotic substrates
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9/23/2002   Post a comment
As we move into the 21st century, substrate manufacturers will acquire more responsibility in IC development with more complex, partially processed substrates tailored to specific applications.
Future points to SOI with strained silicon
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9/23/2002   Post a comment
This is an exciting time for anyone involved in silicon-on-insulator technology, as leading companies move from partially depleted SOI to strained silicon channels on SOI substrates.
Fault Finder: Identifying Cable Problems with VCT
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9/19/2002   Post a comment
New silicon-based technology integrates cable tester functionality directly into the network system equipment, such as NIC cards and switches.
Current steering topologies guide D/A converter design
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9/18/2002   Post a comment
Digital to analog converters form the heart of many communications and mixed-signal circuits. From the August issue of Planet Analog magazine, an AMI engineer shows how current-steering trees can weigh bits accurately, while minimizing crosstalk and silicon area.
Know where your data goes before you make USB go fast
News & Analysis  
9/18/2002   Post a comment
USB has taken the computer peripheral world by storm. In a few short years, it has risen to be the dominant personal computer peripheral interface in almost every category, including printers, scanners, digital cameras, mice and keyboards. It is a "must have" interface for almost any peripheral. You want to add it to your design, so you pick the new 480 Mbits/s speed, right? Wrong, say Cypress engineers. Similar to any other engineering decision, there are tradeoffs involved. This article looks
Current limiting key to hot-swap circuit protection
News & Analysis  
9/18/2002   Post a comment
Many approaches are available for protecting a system against electrostatic discharge (ESD), surge current, overcurrent, undervoltage, overvoltage, and other problems. Each accomplishes a specific set of tasks. Some protection circuits are associated with a particular industry or company, and others are linked to a specific standard such as UL, USB, IEEE, CSA, or IEC. This piece - a preview from the September 23rd PA magazine -looks at live insertion issues.
The Multimedia Home Platform: Creating a Multimedia World in the STB
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9/18/2002   Post a comment
The MHP spec has been developed to accelerate the development and implementation of multimedia services in set-top box designs. Here's a look at the key technical elements that make up this multimedia spec.
LA-1: Standardizing the Look-Aside Processor Interface
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9/17/2002   Post a comment
Developed by the NPF, the LA-1 interface standardizes the movement of data between network processing elements and co-processors. Here's a brief look at some of LA-1's key technical elements.
Optical layer needs management
News & Analysis  
9/16/2002   Post a comment
While it remains a challenging time for the telecommunications industry, advances are being made to reduce costs and improve service levels.
Solving the Power Management Conundrum
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9/12/2002   Post a comment
Designers looking to reduce consumption in 2.5G and 3G mobiles must improve power management in the analog and digital portions of a phone design. Here's some approaches on the horizon that might help.
Peering Into the CSIX Interface
News & Analysis  
9/11/2002   Post a comment
The CSIX interface provides the promise of a common interface for the packet-processing portion of networking designs. Here's a look at the key CSIX elements and its impact on traffic manager/switch fabric designs.
Hitting the 10-Gbit Mark with SPI-4.2
News & Analysis  
9/10/2002   Post a comment
SPI-4.2 has become a pop star in the comm chip space. But to keep its stardom alive, designers must prove that this I/O can effectively handle 10-Gbit streams. And that's going to require proper configuration and usage.
Standard socket interface tapped
News & Analysis  
9/9/2002   Post a comment
Emerging 2.5G/3G wireless markets are introducing new data types and application performance requirements into the handheld-terminal market.
SoC teams 8-bit core with FPGA
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9/9/2002   Post a comment
Most broadband solutions use high-end 32-bit processors coupled with large external memories and specialized media-access controllers (MACs), ASICs or FPGAs.
T-Mobile's PocketPC Phone Edition: Are We There Yet?
Teardown  
9/5/2002   Post a comment
The Phone Edition smart-phone hybrid from Voicestream/T-Mobile is a promising but still somewhat flawed step toward pocket-friendly "any kind, anytime, anywhere" communications. The design also telegraphs a potential for new players to upset the power balance as smart-phone components become merchant market items.
Heading out onto the fiber
News & Analysis  
9/4/2002   Post a comment
Optical communications quenches the industry's thirst for ever greater bandwidths, but placing information onto fiber is not without its challenges. This paper, originally published in a sister publication (Microwave Engineering) looks at some of the modeling issues associated with components and signal conditioning stages required for Electro-Optic Transmission.
Understanding gain-and-load dependencies the key to successful rail-to-rail op amp use
News & Analysis  
9/4/2002   Post a comment
Single-supply op amps with rail-to-rail operation are designed to support new-generation battery-powered portables. But their behavior can be quite different from that of conventional operational amplifiers with dual 15V rails. Read the data sheet performance curves carefully: They depict gain and load limitations, explains this Texas Instruments/Burr-Brown products veteran.


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