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1010 results found, displaying items 381 - 400
Chips In Space: On-The-Fly Intelligence
Conventional wisdom has it that the consumer market will drive the next stage of growth in electronics. But designers should also be aware of investments in the military command, control, communications, computer, intelligence, surveillance, and...
Bob's Mailbox
Hello Bob: I recently saw a question in Nuts & Volts magazine asking why the three-pin linear regulator package pinouts differ between the positive and negative regulators. The answer was that it prevented the input...
IP Rations Dynamic And Static Power In Generic 130-nm ASICs
An intellectual-property (IP) platform reduces dynamic and static (leakage) power in mobile chips built on generic 130-nm process technologies. From Virtual Silicon Technology, the Mobilize platform adds an nMOS sleep device to each...
Thrifty ICs Tame Multichannel-Audio I/O
A series of codecs and class-D drivers provides a gaggle of inputs and outputs for car and home audio systems without resorting to fistfuls of ADCs and DSPs. New home and auto audio systems handle a host of input and output channels. Home...
Joel M. Libove
My career began when I founded Dual Systems Corp. with my PhD research advisor at U.C. Berkeley, Jay Singer. I was fortunate to lead a great team there that developed the first commercially successful MC68000/Unix "supermicro" and the first disk...
18-Bit SAR, 20-Bit Delta-Sigma ADCs Up The Ante On Converter Specs
A new 18-bit successive-approximation-register (SAR) converter and a 20-bit delta-sigma unit expand the speed and accuracy envelopes for analog-to-digital converters (ADCs). Made by Analog Devices, the 18-bit AD7641 SAR converter runs at a...
Low-Distortion PGA Helps ADCs Convert Higher IFs
Cellular basestation designers crave higher intermediate frequencies, which places greater demands on analog-to-digital converters (ADCs). The trend is toward 110, 120, and soon, even 170 Msamples/s. At the same time, 14-bit ADCs require a...
Olympics Security: Simpler Tools Aid Security Preparation
With days to go before the opening ceremonies kick off, Greek officials are trying to plug the remaining holes in the country's effort to thwart terrorist attacks. Construction delays hampered Athens' coordinated "lockdown" to seal off the games and...
Olympics Security: Down To The Wire
Even before the Olympic events get started, Athens Olympics organizers are engaged in their own tight race. One deadline after another has been revised with days to go before the opening ceremonies. Critics have been scolding the organizers...
Securing The Games
Security concerns remain high as the Summer Games open in Athens this month, with international threats as well as domestic ones: Greek terrorists set off three bombs in the city on May 5. Although the explosions caused no casualties,...
LCD TV Panels: A History Of Their Interface Technology
In the display industry, the consistent trend is to move toward higher-resolution displays. However, increasing the resolution results in increasing the overall data rate both from the host to the panel, and within the panel itself. By the late...
Bob's Mailbox
Dear Bob: I have enjoyed your writings and presentations for years. Please keep up the good work. I've learned a lot from you even though my technicians have named me the SandMan for all the ICs I've returned to their native...
Using LCD Panels For TVs Takes Technology To The Outer Limits
From the early 1990s through the early 2000s, the requirements and needs of TFT (thin-film transistor) LCDs (liquid crystal displays) evolved gradually. But with the quickly growing popularity of LCD TVs, the market now demands...
Clock/Data X-Point Switches Mux Or Buffer At 2 Gbits/s
For clock buffering/multiplexing or data transmission in high-speed network routing and wireless basestations, two 4-by-4 low-voltage differential-signaling, nonblocking crosspoint switches operate at more than 2.0 Gbits/s. Each output driver of...
Embedded: 32-Bit MCU Incorporates 16-Channel, 10-Bit ADC
The 32-bit V850E/RS1 microcontroller targets high-end automotive safety applications like restraint control. This 40-MHz MCU includes a 16-channel, 10-bit analog-to-digital converter (ADC) and a buffered clocked serial interface. Prices start at...
Embedded: PCI Board Has Quad ADC Channels
The PCI-DAS4020/12 PCI board packs four independent, 12-bit analog-to-digital converters (ADCs). It also has a 20-MHz sample rate, two 12-bit digital-to-analog converters, and 24 bits of digital I/O. The bus master support delivers a...
DMA Lets 8051 MCU Handle Dual 16-Bit, 1-Msample ADCs
Analog 8-bit microcontrollers are common, but their number approaches zero as the sample rate and resolution grow. Silicon Laboratories' C8051F064 sits at the top of the heap with an 8051-based MCU that has not one but two 16-bit,...
Digging Deeper: The ABCs Of AFE ADCs
The three most popular ADC types generally found in analog front ends are successive-approximation (a), pipelined (b), and delta-sigma (c). These block diagrams represent extremely simplified concepts of the architectures. a. In...
Taming The Wild Powerline
The HomePlug Powerline Alliance (www.homeplug.com) was formed to create an industry standard for high-speed home networking via power lines. Analog Devices' Curt Wise anticipates that HomePlug AV, a 100-Mbit/s version of the spec, will...
Analog Front Ends Max Out Performance
Once regarded as more of a custom chip, the analog front end (AFE) has come into its own as a standard offering, whether the application is specific or general-purpose. Today, designers can select from multiple AFE configurations, satisfying a...
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