PoL converter packs big power into a small space Product News 2/28/2005 Post a comment An ultra-integrated DC-to-DC converter for Point of Load (POL) applications from Enpirion offers 20W of output power, 6A of output current, and 92% peak efficiency power density of up to 700 Watts-per-cubic-inch, or 80 Watts-per-square inch.
Low-end cell leans on analog Teardown 2/28/2005 Post a comment esigned primarily for the entry-level cell phone user and first launched in Brazil, Kyocera's K112 handset nevertheless supports a fairly rich feature set, including games, calculator, ring tones and an alarm-one of my favorite little extras. On a more technical note, the handset also features an internal antenna-an amazing bit of RF engineering in itself-to bypass all those breakage-prone stubs and whips.
Low-Z driver ICs boost multiphase, motor designs Product News 2/25/2005 Post a comment Four new high-speed, low-impedance n-channel MOSFET driver ICs from Siliconix are intended to improve high-current, single- and multiphase DC/DC switching power supply designs. One of the new drivers is specifically suited to brushless motor control applications.
Power manager ICs expand facility Product News 2/25/2005 Post a comment Summit Microelectronics' new SMB110 and SMB113 chips bring additional functionality to the company's line of Programmable Power Manager (PMM) ICs for digital supplies. The SMB110 five-channel and SMB113 four-channel ICs are optimized for increasingly complex consumer electronics applications.
Power Management for Linux News & Analysis 2/24/2005 Post a comment The Dynamic Power Management project explores technologies to improve power conservation capabilities of platforms based on open source software. It focuses on techniques applicable to running systems, adjusting power parameters on-the-fly while ensuring realtime deadlines of running software are met.
Digital consumer electronics will drive new HDD growth, says analyst News & Analysis 2/23/2005 Post a comment Cable companies like Comcast have a strong interest in seeing that set top boxes come equipped with media storage devices, a Lehman Brothers analyst told IDEMA, and because of that the disk drive industry is poised for 38% growth. The need for storage will foster a new pecking order among consumer electronics companies, the analyst said. Steve Ohr was there to capture his comments.
Pericom Semiconductor cuts workforce News & Analysis 2/23/2005 Post a comment Pericom Semiconductor Corp. announced Wednesday (Feb. 23) it would reduce its workforce by 25 employees as part of a cost reduction program slated to save $1.2 million annually.
Circuit makes PWM fan drive linear with temperature change Design How-To 2/23/2005 Post a comment A good way to reduce acoustic noise in a system is to adjust the cooling-fan speed as a function of temperature. PWM drive is simple and efficient, but it applies a series of pulses to the fan power supply. The result is a slight physical motion of the fan assembly that can cause a moderate increase in fan noise. To minimize this acoustic noise, you can drive the fan with a dc voltage. From the February issue of Planet Analog magazine, Maxim's Kerry Lacanette shows how to linearize the output of
Power Management ICs enable digital control of output power Product News 2/23/2005 Post a comment Using Summit's programmable power management ICs, system designers can digitally program the entire multiple output power supply and associated power management functions with a few clicks of a mouse compared to the tedious iterative hardware design of conventional analog power solutions.
Frozen by the heat Power DesignLine Blog 2/23/2005 Post a comment The great thing about my job is that I get to see a flood of information cross my desk that may seem disparate, but when you step back and look at the information as a whole you start to see the connections. Several approaches are being taken to either inch our way to a solution while others are being developed to completely change how we develop ever faster computing designs that don't get frozen by the heat.
MPL in cell Phones makes smaller, smarter serial links Design How-To 2/23/2005 Post a comment The move to reduce the number of parallel lines running from block to block affects cell phones as well as server backplanes. In this article, from the February issue of Planet Analog magazine, a National Semiconductor engineer describes the Mobile Pixel Link, a serial bus consolidating the data path between CPU and LCD displays, across the hinge in clamshell cell phone designs.
Dialog Semi: Mehr Umsatz, doch rote Zahlen Product News 2/23/2005 Post a comment Trotz deutlich gestiegener Umsätze hat der Halbleiterhersteller Dialog Semiconductor auch im Geschäftsjahr 2004 einen Verlust erwirtschaftet: Das schwache vierte Quartal machte den Schwaben einen Strich durch die Rechnung.
Sasken develops GSM/GPRS chip with Rohm News & Analysis 2/22/2005 Post a comment Sasken Communication Technologies Ltd. said it has developed a complete GSM/GPRS chipset solution, including the baseband and protocol software, with Japan-based semiconductor supplier Rohm Co. Ltd.
Mysticom retimer chips achieve new levels of integration for CX4 and LX4 apps Product News 2/22/2005 Post a comment Mountain View, Calif. Mysticom Semiconductor has introduced a pair of new retimer chips for Xenpak, X2 and XFP modules that incorporates its third generation 10 Gigabit Ethernet (GbE) transceiver technology. The new chips the MY3128 designed for 10GBase-CX4 over Infiniband cable and the MY3129 designed for10GBase-LX4 over multimode fiber tout the highest levels of integration and industry's smallest footprint. For systems designers, this means fewer components, lower costs a
Dual chipset provides total 1FXS and 1FXO solution Product News 2/21/2005 Post a comment Today, Legerity Inc. is trumpeting a 1.5-channel FXS/FXO solution -- one complete channel of FXS and the FXO codec --in just one single device. Previously, this level of integration into a single device for voice and data networks was not available, according to the fabless analog/mixed-signal semiconductor maker.
ADI's video amps conserve battery power Product News 2/21/2005 Post a comment Product Review: Today Analog Devices, Inc. introduced a pair of high-performance video amplifiers that offer low operating power and what it claims is the industry's lowest standby power -- enabling longer battery life in portable multimedia consumer applications, such as MP3 players and digital video cameras.
Voltage Choice in a Distributed Power Architecture Power DesignLine Blog 2/18/2005 Post a comment Telecom power supplies use a nominal -48 V distributed bus. However, the increasing number and complexity of loads has driven a system-level change known as the Intermediate Bus Architecture, which is fed to the Intermediate Bus Converter. Mr. Greenland tells us what's happening here and why there is talk of using an even lower voltage range.
Authentication IC thwarts counterfeit battery packs Product News 2/18/2005 Post a comment Product Review—Intersil's ISL6296 is the third battery-validation IC announced in the past month, following those from Texas Instruments and Dallas Semiconductor. Intersil's chip uses a proprietary algorithm embedded in its FlexiHash engine, built around four 8-bit CRC calculators that provide an implied degree of security at least equal to what's provided by the Secure Hash Algorithm (SHA-0, SHA-1) developed by the National Security Agency.
Digital cameras make use of integrated motor drivers Design How-To 2/17/2005 Post a comment Digital still cameras (DSCs) - as well as MP3 and DVD players " all require motors. These motors are drive moving lenses in cameras, as well as spinning disks and moving read/write heads equipment with miniature disk drives. More recently, camera phones have even incorporated motors inside the cellular handset. This article from the February 28th Power Management section of EE Times' "Design Currents" discusses the motion control requirements in modern digital still cameras, among the highest de
Lattice adds precision power manager Product News 2/17/2005 Post a comment Hillsboro, Ore. - Lattice Semiconductor's software configurable Power1208P1 Precision Power Manager IC, an extension of the company's ispPAC Power Manager programmable mixed-signal product family, is designed to provide power sequencing of up to 8 supplies and monitoring of up to 12 supplies through an optimized set of programmable digital and analog functions.
Li battery charger integrates the pass device Product News 2/17/2005 Post a comment Advanced Analogic Technologies' AAT3682 lithium-ion/polymer linear battery charger integrates the pass device (MOSFET) to minimize external parts count. Designed for compact portable applications, the AAT3682 features an embedded microcontroller serial interface to communicate the state of the battery to the system.
Digital Addressable Lighting Interface lowers the cost of mood lighting News & Analysis 2/17/2005 Post a comment Consider mood lighting: There's a new focus is on dynamic lighting. The storage and retrieval of entire lighting scenes is also in demand. In order to create lighting scenes, lights have to be assigned to particular groups, but as a rule, the programmer also wants the option of controlling the lights individually — but just listen to the cash register! STMicroelectronics offers insight into a low-cost digital control scheme.
iSuppli Webinar: Power Management Outlook for 2005 News & Analysis 2/16/2005 Post a comment To help market-watchers understand the direction of this key area, Chris Ambarian, senior analyst covering power management for iSuppli, will host a Webinar session on Wednesday, Feb. 23 entitled: Power Management Outlook for 2005.
Report from the Trenches Power DesignLine Blog 2/16/2005 Post a comment Soaring at 20,000 feet above the sea doesn't get Dr. Frank far from his passion of reversible computing. He attended an industry sponsored meeting that focused on reversible computing and wrote down his thoughts. You need to read this if you don't want to see your designs come to a grinding halt because of the laws of physics. Dr Frank gives you an honest, down-to-earth, observation about the state of reversible computing, what needs to be done, and what the critics say about it. Onward to zetta
Authentication IC guards against unauthorized battery packs Product News 2/16/2005 Post a comment Dallas Semiconductor's DS2703 is a battery pack authentication IC that implements a challenge/response scheme, utilizing the Secure Hash Algorithm (SHA-1) specified in the Federal Information Publication
180-1/2 and ISO/IEC 10118-3, to authenticate a battery pack for a host system such as a cell phone, PDA, or other portable computing devices. The DS2703, integrated into the battery pack, enables the host to guard against unauthorized packs that could introduce unknown function or substandard
Under the Hood of the Kyocera K112: Low-tier phone leans on analog Teardown 2/16/2005 Post a comment First launched in Brazil, the K112 handset includes games, calculator, ringtones, and an alarm. On a more technical note, the handset also features an internal antenna— an amazing bit of RF engineering in itself—to bypass those breakage-prone stubs and whips. From the February Planet Analog magazine folio, Portelligent's David Carey was impressed.
Don't have a Scope? Use a DMM, dummy! Design How-To 2/16/2005 2 comments Sanjaya's got a gremlin on one of his shoulders; a cherub on the other. The gremlin says, "You call yourself and engineer?! You'll never get this power supply to stabilize. Why don't you just quit?" The cherub says: "Back of the envelop calculations can work. Look what I brought you from Micro Center. Put this little meter to work." Somewhere between computational theory and the simplest hands-on measurement, Sanjaya has a window on switching regulator efficiency. If only these voices would stop
Class D amps reduce EMI, improve sound Product News 2/15/2005 Post a comment Once dismissed as providing only average-quality audio, Class D switching
amplifiers appear now to be turning the tide and gaining acceptance in consumer
applications. Companies like Analog Devices, Microsemi, National Semiconductor
and Texas Instruments recently announced a wave of analog-input Class D