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ISSUE DATE: APRIL 28, 2003 OPTIONS
Embedded MCU networking, Dc-Dc building blocks, Powering DDR memory

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Browse Archived Articles By: Issue | Author | Department | Topic

April 28, 2003 - In This Issue

[Technology Report]
Interface Options Abound For MCU Networking
Microcontrollers (MCUs) no longer operate in isolation. Distributed computing resides everywhere, from the plant floor to automobile interiors. MCUs with dual Ethernet or CAN (controller-area network) interfaces are readily available—and that's...  — William Wong

[Leapfrog: Industry First]
Distributed Power: Novel Architecture Yields New Dc-Dc Building Blocks
BGA-style dc-dc building blocks implement a new distributed power architecture that promises higher performance and lower cost. Bricks and SIPs, more generically known as dc-dc converters, have long been the basic building blocks of distributed power...  — David G. Morrison

[Design View / Design Solution]
DDR Memories Place Tough Demands On Voltage Regulators
Full article begins on Page 2 The introduction of double-data-rate (DDR) memory has afforded a quantum leap in performance for commercially available desktop and portable computers. That's a step much warranted by the multigigahertz...  — Mehrzad Koohian

[Ideas For Design]
Simple High-Efficiency Current Source Is Adjustable
Occasionally, the need arises for a simple current source that can be easily adjusted over a relatively wide range of current levels. The circuit shown in the figure uses a 200-kHz pulse-width modulation...  — Fran Hoffart

[Ideas For Design]
"AC Vias" Can Improve Decoupling
Good decoupling is nearly always essential in a world of mixed-signal designs that exhibit increasing speed, performance, and component density. There are cases, though, where proper decoupling is absolutely critical if the circuit is to deliver its...  — Louis Vlemincq

[Editorial]
The War With Iraq Affects Each Of Us Differently, Depending On Our Job
Whether you personally agree or disagree with the war in Iraq, certain fundamentals hold true. War is hell for our troops in the Middle East—and rather surreal for us here at home. On my last trip, as I waited on the Newark airport curb, I...  — Mark David

[POV: Point Of View]
Is This The End Of Parallel Interfaces?
For those who deal with electronic interfaces today, the word is serial. Across the board, new interfaces are being created and new versions of existing interfaces are being defined in serial form. Parallel interfaces are limited to CPU internal and...  — Joseph Dambach

[Pease Porridge]
Bob's Mailbox
Hi Bob: I enjoyed your columns on the K2-W amplifier (Electronic Design, Jan. 6, p. 20 and Feb. 3, p. 22). I knew I had a couple of Philbrick items in my collection, so while in the crawl space this morning I dug them out—a K2-P and an...  — Bob Pease

[Beyond Technology]
Weak Economy, Layoffs Hammer EE Continuing Education
Today's sluggish economy and poor employment picture seem to have put the brakes on one of the more time-honored elements of engineering life—continuing education. Companies struggling for profitability are reluctant to spend much on training....  — Ron Schneiderman

[TechView: The Industry]
Scale From Gbits To Tbits With Minimal Logic
Scalability and longevity are two vital aspects of products that go into the network infrastructure. As network traffic increases, the data throughput of switch fabrics and line cards must be scalable to handle the increased amount of data. The...  — Dave Bursky

[TechView: The Industry]
Audio Filter Instrument Targets Switching Amplifiers
The AUX-0025 filter instrument may answer the measurement demands of chip designers and switching-amp manufacturers for an accurate and repeatable solution. Audio Precision's Class D, Class I, Class S, Class T, and digital amplifiers all generate an...  — Roger Allan

[TechView: Analog & Power]
Power-Supply ICs Reach For Greater Performance
Recently introduced power-supply controllers and low-drop-out (LDO) regulators have raised the performance bar for embedded dc-dc converters. Linear Technology's LTC3414 is a synchronous buck converter with both high- and low-side MOSFETs...  — David G. Morrison

[TechView: Analog & Power]
Power-Supply News
> The Mercury series of power-factor-corrected front-end power supplies from Transistor Devices delivers 1200 W of 12-, 24-, or 48-V dc output from a 90- to 300-V ac input. The rating rises to 1500 W with a 176- to 300-V ac input....  — David G. Morrison

[TechView: Analog & Power]
Configurable I/O Enhances Programmable Analog IC
Anadigm's AN221E04 field-programmable analog array (FPAA) features four configurable I/O cells and an integrated 8-bit analog-to-digital converter. With the addition of configurable I/O, a single FPAA can process multiple channels of analog signals...  — David G. Morrison

[TechView: Analog & Power]
34-By-34 Switch-Fabric Chip Deep-Cuts Cost And Power
At the heart of most switch and router designs lies the switch fabric. It channels packet data to the destinations controlled by the line cards processing the packets. Switch fabrics performing above 2.5 Gbits/s are available, but the price is steep...  — Louis E. Frenzel

[TechView: Communications]
Learning CDs Offer Alternative For Continuing Education
So, how do you get the lowdown on subjects you need to know to stay up to date in your field? Articles from Electronic Design and other magazines and books are the most likely sources. A good Web search will bring results. But another...  — Louis E. Frenzel

[TechView: Communications]
RF PA Modules Extend Handset Battery Life By Over 15%
Perhaps the most inefficient circuit in a cell phone is the RF power amplifier (PA). PAs usually have to operate as class AB devices to provide the linearity necessary for broadband operation, but the resulting efficiency is low....  — Louis E. Frenzel

[TechView: Embedded]
TTP Controller Targets VPNs
A time triggered protocol (TTP) bus is the architecture of choice for safety-critical environments such as automotive steer-by-wire and brake-by-wire systems. NEC's TINA bus controller chip is compatible with TTTech's TTP-IP C2S protocol. The chip...  — William Wong

[TechView: Embedded]
16-Bit USB Controllers Push Memory/Performance Limitations
Packing a 16-bit RISC processor core into a USB controller eliminates many memory and processor performance limitations and keeps power consumption low. This lets the controllers handle more of the USB processing chores. It's possible to have a...  — William Wong

[TechView: Embedded]
Modular Plug-In Architecture Speeds App Development
Doing software development before hardware is available saves time and money. It also lets more developers work on an application when hardware is expensive or in limited supply. This is one reason developers have turned to Virtio's simulation tools....  — William Wong

[TechView: Components & Test]
Multi-Axis Servo Amps Revamp Automation Design
Fundamentally changing the way engineers design automation systems, Copley Controls' family of network-compatible all-digital servo amplifiers suit multi-axis motion control, slash system cost, and minimize complexity. The company believes its...  — Roger Allan

[TechView: Components & Test]
High-Brightness TFT LCDs Go Industrial
High-brightness TFT LCDs go industrial Three new 15-in. active-matrix thin-film-transistor (TFT) LCD modules flaunt the high brightness needed for industrial applications like wide-angle factory automation, test and measurement, kiosk, and financial...  — Roger Allan

[TechView: Components & Test]
Spectrum Analyzers Hike Up Frequency Range To 110 GHz
The R3172/R3182 spectrum analyzers analyze high-frequency modules and devices at up to 40 GHz. They boast newly developed RF circuitry and a specially designed synthesized oscillator. Also, the R3182's frequency range can be extended to 110 GHz, using...  — Roger Allan

[TechView: Digital]
Compute Fabric Reconfigures To Meet DSP System Needs
A reconfigurable compute fabric (RCF) based on an array of DSP cores promises flexible system solutions for wireless basestations and other communications applications. This architecture, developed by Morpho Technologies and enhanced by Motorola,...  — Dave Bursky

[TechView: Digital]
Mask Tool Promises To Cut Chip Mask Costs
Mask tool promises to cut chip mask costs A new software tool that can reduce the number of masks needed to manufacture ICs leverages a proprietary scheme that prints several mask layers on the same reticle rather than create one mask on each reticle....  — Dave Bursky

[TechView: Digital]
RapidIO Support Silicon Delivers Bus Bridge And Switch Functions
RapidIO support silicon delivers bus bridge and switch functions Tundra Semiconductor Corp. is sampling the first chips dedicated to supporting the RapidIO interface, the Tsi400 bus bridge and the Tsi500 multiport bus switch. The Tsi400 connects PCI...  — Dave Bursky

[TechView: EDA]
"Seamless" Tool Digs Deeper
Mentor Graphics is regarded as a market leader in at least two areas. One is in the deep back end of the IC production process, thanks to the company's Calibre suite of resolution-enhancement-technology (RET) tools. The other, paradoxically, is in...  — David Maliniak

[TechView: EDA]
Hot Product
With its spyglass predictive analysis tool, Atrenta Inc. gave register-transfer-level designers a means of checking their code against scores of design rules that predict downstream implementation and timing bugaboos. Now, the company has applied...  — David Maliniak

[TechView: EDA]
More EDA Tool News
> Version 4.1 of the Specman Elite testbench automation tool from Verisity includes e Reuse Methodology features. The upgrade increases the power of Verisity's e Verification Components to generate and synchronize complex multitransaction...  — David Maliniak

[New Products]

• 500-mA DC-DC Converter Provides I/O Flexibility  — Lisa Fakhry

• IC Controls Two Satellite Dish LNB Downconverters  — Lisa Fakhry

• Stable TCXOs Suit Extended Duration Monitoring  — Lisa Fakhry

• LDOs Offer Noise-Sensitive Apps With Ultra-Low Noise, High PSRR  — Lisa Fakhry

• Surface-Mount Oscillator Meets Low-Jitter Requirements  — Lisa Fakhry

• Digitally Controlled VGA Features Wide Bandwidth  — Lisa Fakhry

• Flexible, Scalable Architecture Backs Converter Chip Set  — Lisa Fakhry

• Hot-Swap Controller Ensures Proper Power-Up  — Lisa Fakhry

• Single-Output Converter Accepts 90- To 264-V AC Inputs  — Lisa Fakhry

• Dc-Dc Converter Provides 100-mA Output  — Lisa Fakhry

• EDA Software Tools Streamline Design And Verification  — Lisa Fakhry

• EDA Tool Suites Center On Individual Design Needs  — Lisa Fakhry

• Test Software Fully Integrates AWR Design Process  — Lisa Fakhry

• PC/104-Plus CPU Module Uses 38% Less Power  — Lisa Fakhry

• Presentation Layer Tool Supports Java Applications  — Lisa Fakhry

• Compact SBC Provides Power In A PC/104 Footprint  — Lisa Fakhry

• Compact Socket 370 SBC Fits In Any Network Environment  — Lisa Fakhry

• High-Speed Card For PC/104 Features Flexible I/O  — Lisa Fakhry

• Latest-Version Development Kit Eliminates Assembly Coding  — Lisa Fakhry

• Powerful PCI/ISA SBC Harnesses 533-MHz Front-Side Bus  — Lisa Fakhry

• Single-Slot VME Board Supports PMC Module  — Lisa Fakhry

• Optical Sampling Oscilloscope Targets 10 GbE Applications  — Lisa Fakhry

• Digital-Multimeter/Software Package Creates DAQ System  — Lisa Fakhry

• Flexible Data Acquisition Packages Feature 400-Msample/s Digitizer Card  — Lisa Fakhry





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