November 20, 2000 Magazine Archive

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ISSUE DATE: NOVEMBER 20, 2000

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Active termination, Spectrum analyzer, Optical networks, Hard-disk drives, Power distribution analysis

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November 20, 2000 - In This Issue

[Technology Report]
Optical Networks Will Come To The Rescue As Bandwidth Demands Increase
Bandwidth, bandwidth, bandwidth. As the telecommunications industry experiences unexpected exponential growth in data traffic, the demand for this commodity has become insatiable. Not only has there been an increase in the number of... — Louis E. Frenzel

[Technology Report]
Hard-Disk Capacities For 3.5-In. Drives Are On The Rise
In the hard-disk drive landscape, 3.5-in. drives still dominate. They're able to do this by providing the right combination of power, price, and performance for the largest number of applications. While smaller form factors such as IBM's MicroDrive... — William Wong

[Product Innovation]
Shhh! Nonlinear Active Termination Quiets Ringing
In every high-speed digital system, designers continually face the challenge of keeping digital switching noise and ringing to a minimum. These undesirable effects, resulting from fast-switching digital data streams and control signals, can make... — Dave Bursky

[Product Innovation]
Spectrum Analyzer Combines High Performance With Enhanced Flexibility
Advanced performance in so-phisticated test and measurement equipment generally comes at the price of complexity of use. Adding more features and capabilities to an instrument and its front panel often requires that users take a lot of time to just... — Roger Allan

[Design Application]
Optimize Power Distribution Analysis In High-Speed System Designs
Modern, high-speed system behavior is critically dependent on power-distribution-system (PDS) designs that deliver power well beyond 400 MHz. PDS design, however, has become too complex to do by hand. Often, this results in a PDS that's either... — Contributing Author

[Design Application]
Choosing The Right DSP For Real-Time Embedded Systems
Each DSP and data-acquisition system requirement presents a unique combination of delivery, cost, packaging, and performance goals to the designer. These factors must be weighed and balanced in order to arrive at an optimum architecture and design... — Contributing Author

[Ideas For Design]
Simple Current-Loop Transmitter Converts PWM To 4-to-20-mA Output
Over long cable runs, an isolated 4-to-20-mA current loop offers robust noise immunity and tolerance. This characteristic makes it popular for analog data transmission in noisy industrial and process control environments. Unfortunately, the... — W. Stephen Woodward

[Ideas For Design]
Low-Cost Microcontroller Acts As A Microphone Simulator
If you have ever been involved in testing microphones while setting up a PA system, you have probably heard the phrase, “Testing, one, two, three” countless times. This idea describes a small, self-contained unit able to simulate spoken voice. It... — Contributing Author

[Ideas For Design]
Circuit Provides Ground-Start Supervision For Phone Switching
Ground start is the primary analog signaling method used between telephone switches such as the central office (CO) and a private branch exchange (PBX). It offers a way to indicate on-hook and off-hook conditions in a voice network. There’s one... — Michael Gambuzza

[Ideas For Design]
RF Design Hint Increases Transmit Signal Rejection In Telephone Hybrids
Every telephone signal port used to transmit and receive voice or modulated data from a modem employs a hybrid (duplexer) circuit. Such circuits are used to separate the transmit and receive signals. They’re also needed to reject the local... — Contributing Author

[Editorial]
Internet Addiction? Or Is Drinking From A Fire Hose Safe?
For many of us, the Internet has become both a necessity for work and the largest source of entertainment. At work we have high-speed networks that feed our screens at hundreds of kilobits per second to multiple megabits per second, but many of us... — Dave Bursky

[Pease Porridge]
What's All This Fuzzy Logic Stuff, Anyhow? (Part V)
Okay, I showed you a Paper Study in the last column (Electronic Design, Nov. 6, p. 146). It was a schematic diagram of a servo controller that I hadn't yet built. I asked you to save that column because you'll need it this month. I told you it was... — Bob Pease

[Viewpoint]
A Standard Design Protocol Is Needed For Mobile-Device Interconnectivity
Bluetooth, wireless access—all that this entails is the responsibility of the software engineer—right? Wrong. Mobile-device manufacturers keep touting the ability to access information from anywhere at anytime. But without a standard... — Contributing Author

[Editor's Notebook]
K.I.S.S. (Keep It Simple, Stupid) Is Always Relative
I've been working with the Rabbit 2000 TCP/IP Kit from Rabbit Semiconductor. This neat little web-server development system is centered around an 8-bit processor with a 20-bit address space. Surrounding it are peripheral chips and related hardware,... — William Wong

[The Design Factory]
Disagree And Commit: The Risk Of Conflict To Teams
Long ago, Ogg, the Cro-Magnon design engineer, attended his first team meeting at the Bison Valley Ax Works. He was completely unprepared for the level of conflict that he observed. Engineers appeared offended when members of the marketing... — Don Reinertsen

[Letters]
Letters
Engineer In Need Of A Little Wow I read your editorial in the May 15 issue ["Does The Fire Burn And The Wonder Still Exist?" p. 52]. I've had my own company for ten years or so. I quit my job because there... — Various

[40 Years Ago]
Microelectronic Circuits Pose Business Threat
As completely assembled integrated circuits and molecular building blocks become available in production quantities, the present-day relationship between a component supplier and his customer, the equipment manufacturer, faces a drastic revision.... — Steve Scrupski

[40 Years Ago]
Your Career: News And Notes
An engineer's average term of employment with a leading electronics company is about six years, according to the company's employment bro-chure. The salary of an engineer with the company for one year averaged just above $8,000 per year,... — Steve Scrupski

[Forefront]
System Breaks The Internet Log Jam Clogging Telco Switches
With an appetite that is seemingly insatiable, the Internet just goes on gobbling up more and more of the critical components of the public switched telephone network (PSTN). In fact, Internet service providers (ISPs) in New Hampshire have actually... — Stephen Grossman

[Forefront]
A Wide Range Of Operating Systems Announced At ESC West
September's Embedded Systems Conference (ESC) West in San Jose, Calif., was the site of a large number of operating-system (OS) announcements—with Linux leading the charge. While Linux has been very effective in the embedded market, it is still... — William Wong

[Forefront]
Enhanced Interoperability, 802.11b Devices Stimulate Growth Of Wireless LANs
Developments for wireless networking are proliferating, as evidenced at the Networld+Interop Conference in Atlanta in September. More companies are beginning to use wireless LANs as better products become available and their prices drop to... — Louis E. Frenzel

[Forefront]
Stability-Analysis Tool Saves Time In Power Designs
Implementing a system-level power design can be a time-consuming process, even when the design solution relies on off-the-shelf power supplies. Though they're sometimes viewed as black boxes with inputs and outputs, power supplies internally rely on... — David G. Morrison

[Forefront]
Interactive Web-Based Tool Accelerates Design Development
The power.national.com collection of interactive online design tools, launched by National Semiconductor last fall, has been revamped. Its updated Webench 2.0 should accelerate development through automated design creation, virtual physical... — Ashok Bindra

[Forefront]
Company Wire
• Analog signal-conditioning and data-converter maker Signal Processing Technologies Inc. has opened an IC design center in Horten, Norway. The center is focused on designing low-power, high-resolution, high-speed data-conversion... — Staff

[Forefront]
Multicore DSP Targets Multichannel High-Density Applications
The dual-core ADSP-2192 is the first 16-bit, fixed-point derivative of Analog Devices' high-performance ADSP-219x core. It was architected for multichannel, high-density applications like voice/fax/data over networks, PBX extenders, and wireless... — Ashok Bindra

[Forefront]
2D/3D Graphics Card Offers Enhanced Features
The Marvel G450e-TV AGP add-in card provides enhanced TV, MPEG, DVD, and VCR functions. Among the features this device offers are TV tuning, MPEG-2 analog video capture and editing, TV on the PC, PC out of TV, DVD playback, and dual-display support.... — Lisa Eccles

[Forefront]
Soft-Recovery Diode Boosts Power-Factor Correction
A series of hyperfast soft-recovery diodes has been released by International Rectifier. These devices have been specifically designed to improve performance and power density in power-factor correction (PFC) boost circuits used in offline... — Ashok Bindra

[Forefront]
IrDA-Compatible Transceiver Cuts Component Count
Compliant with version 1.3 of the IrDA standard for data transmission up to 4 Mbits/s, ZiLog's ZHX2010 fast infrared (FIR) transceiver requires half as many external components as comparable devices. This transceiver comes with a built-in current... — David G. Morrison

[Forefront]
Histograms And Feedback Improve BIST Analysis
Built-in self-test (BIST) takes on many forms, de-pending upon the type of circuit and type of analysis being performed. Two additions to the BISTMaxx software and IP from Fluence Technology offer new ways to analyze test results. These additions,... — William Wong

[Forefront]
DSP Core Combines Two Worlds
Today's applications need single DSP chips that can serve both signal-processing tasks and microcontroller operations efficiently. Motorola's enhanced DSP56800E DSP core is architected to do just that. Combining the best of both worlds, it boasts a... — Ashok Bindra

[Forefront]
Development Platform Accelerates The Design Process For Digital TV
Mastering the standards related to set-top box and digital-TV (DTV) design can be quite time-consuming, seriously hindering product development. However, the latest version of the Cougar DTV development platform can accelerate the design effort... — Stephen Grossman

[Forefront]
USB-To-Serial Controller Keeps Portable Devices In Hand
Currently, designers are moving away from serial and parallel ports and using the Universal Serial Bus (USB) and IEEE-1394 ports in-stead. That's the reason why Kawasaki LSI is introducing its KL5KUSB116 USB-to-serial controller integrated circuit.... — Stephen Grossman

[Careers]
Managing Travel And Design Conflicts
Today, many engineers find themselves traveling for business reasons. With an increasing number of business and technology partnerships, conferences, trade shows, and acquisitions, as well as geographically distant development teams, you could find... — Peter Varhol

[New Products]

• Interconnects — Staff

• Power — Staff

• Sensors — Staff

• Software — Staff

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