Buck bias-regulator IC boosts high-voltage systems Product News 4/22/2004 Post a comment National Semiconductor bills its LM5008 as the industry's first 100-volt rated, buck bias regulator, which operates at up to 90 percent efficiency. The latest addition to the company's LM5000 family of high-voltage solutions and a second-generation buck bias regulator, the LM5008 analog-BiCMOS-DMOS IC has an integrated 100-volt, 500-mA n-channel power MOSFET and all the functions needed to implement a compact bias power supply. This includes circuitry to support short-circuit and over-temperatur
CDMA power amplifiers deliver on integration, performance, price Product News 4/21/2004 Post a comment SiGe Semiconductor announced the industry's first commercially viable silicon-based CDMA power amplifiers. Leveraging a highly efficient silicon germanium BiCMOS process, the three power amplifiers achieve performance parity with GaAs-based devices, while delivering the integration, manufacturing and price benefits of silicon.
Convert single supply 13-bit ADC voltage input to bi-polar News & Analysis 4/20/2004 Post a comment Many A/D converters operate exclusively in a 5V single-supply environment and only accept single-sided input signals or differential signals with some limitations, writes Bonnie Baker, Microchip Technology's famous apps engineer in this article culled from the Chipcenter archives. An alternative to these single-ended input devices is a true-differential input device, which opens the door for a large array of single supply application solutions, she says.
The design of LVDS interface for a Multi-Channel A/D Converter News & Analysis 4/20/2004 Post a comment This article, from the ChipCenter archives, analyzes system design specifications for a low-voltage differential serial output interface of a multi-channel, high-speed analog-to-digital (A/D) converter. For A/D applications, says Texas Instruments' John Wu, the two most important specifications have always been bit resolution and data sample rate. However, the specification of an output data interface is increasingly important.
90 nm in a Flash Product News 4/20/2004 Post a comment They said they would do it. It seems they have. The new 4 Gigabit monolithic NAND Flash chips are here...
Mixed-signal vendors to rise, comms report says News & Analysis 4/20/2004 Post a comment A new report on communication aggregation processors from The Linley Group argues that vendors with expertise in Ethernet switching, encryption or media-access control devices may be able to gain ground over those with base expertise in control-plane processors. The latter group includes Motorola/Freescale and Integrated Device Technology Inc. Loring Wirbel has this report.
Fan ICs cool the noise Product News 4/20/2004 Post a comment FOCUS ON Thermal Management - With the major cooling issues for desktop machines behind them, makers of fan-management IC are digging deeper into their bag of tricks to minimize audible fan noise in systems extending to servers and the manufacturing floor. Indeed, acoustic noise is as much a human-factors issue today in such areas as the industrial test facility and is the hostile environments under which various equipments operate. The road to killing the noise, particularly with the PWM-type (
Speaker offers solutions to 'tyranny of interconnects' News & Analysis 4/19/2004 Post a comment The "tyranny of interconnects" is threatening the timing, power, and cost of next-generation chips, according to James Meindl, director of the Microelectronics Research Center at the Georgia Institute of Technology. At a keynote speech at the International Symposium on Physical Design (ISPD '04) Monday, Meindl presented leading-edge research in electrical, optical, and thermal interconnects.
The Future of Automotive Audio: Driving Standardization Product News 4/19/2004 Post a comment Opinion: As DSPs continue to shape the future of automotive audio, enabling a myriad of new technologies and applications, standardization efforts will play a large part in helping to streamline innovation, improving the interoperability and availability of cutting-edge new systems.