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Content tagged with Internet of Things Designline posted in November 2002
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DRAM makers beef up capital budgets
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11/27/2002   Post a comment
Garbage in / garbage out: Input filters enhance A/D converter measurements
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11/27/2002   Post a comment
Analog-to-Digital Converters (A/D converters) are capable of quite impressive noise and distortion performance. However, even the best signal generators and synthesizers produce signals that are not spectrally pure enough to evaluate noise and distortion performance of A/D converters. A National apps guy reminds us that even the best test set ups can benefit from an input filter.
Differential Hall-effect sensors aid rotational speed control
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11/27/2002   Post a comment
The rotational speed of motors with gear teeth can be precisely monitored and controlled with new-generation Hall-effect sensors. BiCMOS technology provides devices with high-sensitivity and speed, and yet small enough to fit inside motor housings or other tight spaces. Allegro's ace applications engineer explains their principles of operation, and provides a guideline for analog signal conditioning.
Diving into the 802.11i Spec: A Tutorial
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11/26/2002   Post a comment
The 802.11i specification will play a big role in improving the overall security capabilities of current and future WLAN networks. Here's a look at the key technical ingredients of this draft specification.
SST holds fast during industry storms
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11/25/2002   Post a comment
How Sun reduced cost /supply risk by moving to COT
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11/25/2002   Post a comment
Last year engineers at Sun Microsystems began a project to source a limited number of ASIC devices through a customer-owned tooling (COT) model.
Designing a high-performance, low-cost switch fabric chip-set using COT
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11/25/2002   Post a comment
Tau Networks recently announced a T64 switch fabric chipset consisting of two multi-million gate chips.
COT: post design considerations
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11/25/2002   Post a comment
The proliferation of libraries and intellectual property (IP) in the customer-owned tooling (COT) world has lowered the barrier of entry for those interested in moving to a COT design flow.
COT versus ASIC
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11/25/2002   Post a comment
COT or ASIC? No brainer for big, fast router market
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11/25/2002   Post a comment
The router products market — where the average throughput growth is an incredible 2.2X every 18 months — is moving faster than the formidable Moore's Law.
ASIC to COT: knowing your outsourcing options
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11/25/2002   Post a comment
The fabless model continues to grow as more companies recognize its benefits. The model includes both the customer-owned tooling (COT) and application- specific IC flows.
SST holds fast during industry storms
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11/25/2002   Post a comment
TI kicks ASIC program into high gear
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11/25/2002   Post a comment
Multicast Enables Efficient Streaming of Media over IP
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11/25/2002   Post a comment
Through IGMP protocol, designers can set up a multicast scheme that will efficiently stream video signals over broadband links and provide new revenue generating services in equipment designs.
TI throws its weight into ASIC battle
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11/22/2002   Post a comment
Proper Serdes Selection Solves Serial Backplane Design Woes
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11/21/2002   Post a comment
As backplanes move into the 6.25-Gbit/s range and beyond, reflections, crosstalk, ISI, and noise become bigger issues for designers. Choosing the right serdes can help combat these problems.
Xilinx drives Spartan-IIE to high end
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11/18/2002   Post a comment
AMD delays 90nm processing in Dresden
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11/18/2002   Post a comment
Xilinx drives Spartan-IIE to high end
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11/18/2002   Post a comment
A method for making UML directly executable
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11/18/2002   Post a comment
In the 1960's we learned how to compile assembly language into machine language.
DDR prices moderate as production output ramps up
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11/15/2002   Post a comment
A five-month surge in DDR SDRAM prices appears to be leveling off, as chip manufacturers begin to increase their output of the higher-speed memory devices.
Microcontrollers/Microprocessors Out in Force at Embedded Systems
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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%
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11/14/2002   Post a comment
Solving FDD Compliance Issues with 3GPP Libraries
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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
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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
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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
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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
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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.
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