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posted in April 2005
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Digital supply controller breaks away
Product News  
4/19/2005   Post a comment
Product Review - Touted as the first fully digital switchmode power controller to deliver both flexibility and performance, the highly-integrated Si8250 digital power supply controller from Silicon Laboratories (Austin, Texas) partitions the chip architecture into a control section and a system management section, each with its own dedicated, programmable processor.
Wolfson erweitert Audiochips um Power-Management
News & Analysis  
4/19/2005   Post a comment
Mit seiner 'Audio Plus'-Strategie will der schottische Fabless-Chiphersteller Wolfson Microelectronics künftig Audio-Chips mit integriertem Power-Management anbieten.
TI expects semi market to strengthen after weak quarter
News & Analysis  
4/18/2005   Post a comment
Texas Instruments Inc. posted net earnings of $411 million, or 24 cents per share on sales of $2.97 billion in the first quarter of 2005, compared to $490 million, or 28 cents per share on sales of $3.15 billion in the previous quarter.
Under the Hood of Siemens' ADSL modem: Broadband from A-to-D (and back)
Teardown  
4/18/2005   Post a comment
Guess whose parts Portelligent's David Carey found inside Siemens' asynchronous digital subscriber line interface? The essentials are codecs and DSP. Oh yes, clocking and power management devices as well. From the April issue of Planet Analog magazine.
Raytheon wins Darpa contract for GaN semiconductors
News & Analysis  
4/18/2005   Post a comment
Raytheon Company's Integrated Defense Systems unit has been awarded a three-year, $26.9 million Defense Advanced Research Projects Agency contract with a potential award value of $59.4 million if all program options are exercised.
Verstärker-IC für Militär- und Nachrichtentechnik
News & Analysis  
4/18/2005   Post a comment
Der auf Mikrowellenschaltungen spezialisierte Chiphersteller TX—Mimix Broadband hat einen zweistufigen Eintakt-MMIC-Hochleistungsverstärker auf Gallium-Arsendid-Basis (GaAs) für das X-Band vorgestellt. Der Eintakt-Chip kommt mit einer integrierten Gate-Bias-Schaltung und soll eine einfachere Vorpolung ermöglichen.
Rauscharmer Präzisionsverstärker für Low-Voltage-Applikationen
News & Analysis  
4/18/2005   Post a comment
Analog Devices bringt eine neue Familie an rauscharmen Präzisionsverstärkern, die sich nach Unternehmensangaben optimal für Messinstrumente, Audio-, Kommunikations- und medizinische Geräte mit einer Betriebsspannung von 5 Volt oder darunter eignen sollen.
Simplify HD-application designs with dual-channel video converters
Product News  
4/18/2005   Post a comment
National Semiconductor Corp.'s dual-channel adaptive video converter is the first device in a new family of converters for high-definition digital television (HDTV) screens up to 1920 x 1080p (line progressive) resolution, including LCD, plasma and rear-projection television.
Measure temperature without external sensing components
Product News  
4/18/2005   Post a comment
A single-wire digital output temperature sensor from Texas Instruments Inc. (TI) is said to render high accuracy in a tiny package.
RS485 transceivers are tweaked for higher data rates and fail safe transmission
Product News  
4/15/2005   Post a comment
Never as fast as LVDS, never as consumer savvy as 1394, never as addressable as CAN bus nodes, RS485 transceivers nonetheless support a wide variety of data communication and control applications. They are used extensively in instruments and in factory-floor applications because of their simple wiring and noise immunity. A number of suppliers are turning these bread-and-butter components into glamour items with 40 Mbits/s transmission speeds, low-voltage operation and fail safe data integrity. S
Low-noise precision amp targets low-voltage apps
Product News  
4/15/2005   Post a comment
Analog Devices Inc. is kicking off a new family of precision amps that are optimized for the low-noise requirements of instrumentation, audio, communications and medical applications operating at 5 V and less.
Cree reports higher profit, Rambus slips
News & Analysis  
4/14/2005   Post a comment
Cree Inc. and Rambus Inc. reported year-over-year sales gains in their March 2005 fiscal quarters, but litigation expenses caused Rambus' earnings to fall from a year ago.
Power filter cleans up low-voltage supplies
Product News  
4/14/2005   Post a comment
Picor's QPO-2 System-in-a-Package is an active power filter that reduces a supply's output ripple and noise (also called periodic and random deviation, PARD) by more than 30 dB from 1 kHz to 500 kHz. Inserted between the output of a 0.3- to 5.5-volt supply and the load, the QPO-2, which handles up to 20 amps, improves transient response and ensures quiet point-of-load regulation when used with most switching power supplies. It's particularly suited to applications in test and measurement, distri
Fairchild Semi posts loss, expects flat Q2
News & Analysis  
4/14/2005   Post a comment
Fairchild Semiconductor reported a net loss of $10.4 million, or 9 cents per share on sales of $362.8 million in the first quarter of 2005, as the semiconductor supplier saw seasonally slow overall sales, falling prices, and declining gross margins negate strong demand in the power market.
D/A converters consume 2-mA supply current during write operations
Product News  
4/13/2005   Post a comment
These dual and quad buffered, rail-to-rail, 8-bit digital-to-analog converters (D/A converters) from Maxim Integrated Products Inc. tout low power and the I2C interface.
Qualcomm samples 3.1Mbps 3G chips
News & Analysis  
4/13/2005   Post a comment
Qualcomm said Wednesday that it has started sampling next-generation 3G chips that will support peak speeds of 3.1 Mbps.
Fastest OR-ing controller is also most efficient
Product News  
4/13/2005   Post a comment
International Rectifier, with its IR5001S controller-driver for "active OR-ing" of multiple power supplies and reverse polarity protection applications, claims big gains in efficiency over traditional diode solutions as well as a significant improvement in response time to system faults over competing controller/MOSFET-based OR-ing methods.
New microcontroller features signal-chain-on-chip functions
Product News  
4/13/2005   Post a comment
Texas Instruments Inc. has launched what it claims is the industry's first signal-chain-on-chip microcontroller family for high precision sensing and measurement applications. The MSP430F42x0 MCU features an ultra-low power core and integrated peripherals, including a 16-bit sigma delta analog-to-digital (ADC) converter, up to 32-Kilobytes of flash memory and a liquid crystal display (LCD) driver with an internal charge pump.
What's this about all the noise?
Power DesignLine Blog  
4/13/2005   Post a comment
Noise has always been a component of switched mode power supplies and as with most designs there are trade-offs you have to consider for you SMPS design. Paul Greenland, Marketing Director of National Semiconductor gives you a shopping list of items to look out for when designing with switchers, so you can minimize your trade off gotchas.
TFT-LCD driver brings power to the big screen
Product News  
4/13/2005   Post a comment
Texas Instruments' touts its TPS65160 as a complete, high-accuracy power supply chip that provides all four operating voltages for the thin-film-transistor liquid-crystal display (TFT-LCD) panels serving in today's large-screen monitors and TVs.
Amplifiers promise gigahertz speed with industry's best large signal bandwidth
Product News  
4/12/2005   Post a comment
EXCLUSIVE to eeProductCenter: Generally, you see many amplifiers touting GHz speeds, but you won't see an amplifier touting these speeds at large signals. National Semiconductor's very wideband DC coupled monolithic operational amplifier offers solid bandwidth performance at both the small and large signal bandwidths.
Storage disk arrays pose challenges for chassis design
Blog  
4/11/2005   Post a comment
We had heard from Teradyne's Chris Heard at DesignCon about some of the issues involved in the packaging of RAID storage cabinets. A visit from Maxtor confirmed some of the things we had been hearing: Though drives were getting smaller, they were getting packed tighter together on a rack. Heat and cable routing is becoming a problem. Here is Chris' commentary from Planet Analog magazine.
Isolated digital signal coupler transfers fast or slow pulses
News & Analysis  
4/11/2005   Post a comment
Optocouplers are the usual choice for coupling digital signals between isolated circuits that have different ground levels. Optocouplers have disadvantages, however. Their most important parameters (current transfer and propagation time) change with age. They have relatively high static power consumption, and for most types the speed is limited. Maxim's applications engineers present an alternative scheme that relies on magnetically-coupled FET drivers.
White LED backlights: Choosing a serial or parallel connection
Design How-To  
4/11/2005   Post a comment
Early white LED drivers had to use a constant current configuration to account for inconsistent quality in the manufacture of the light sources. While quality has improved, allowing constant voltage regulation, a boost regulator can be tricky to implement. The design key, suggests an Analogic Tech engineer, to make proper choices between serial and parallel LED drives. This article is from Planet Analog magazine.
Previewing Linear Technology, Freescale, and Intersil - Very Different Expectations
News & Analysis  
4/11/2005   Post a comment
Financial research firms like to show a certain "intimacy" with the industry and the companies they're tracking. With that experience in mind, Doug Freedman of American Technology Research offers these projections of what some of the analog companies are likely to report this week.
Industry's first micro serdes delivers low power and low EMI
Product News  
4/11/2005   Post a comment
Exclusive to eeProductCenter: Fairchild Semiconductor is trumpeting the industry's first ultra compact differential serializers/deserializers for battery-powered portable applications.
Motor microstepper translates into simpler designs
Product News  
4/8/2005   Post a comment
Allegro MicroSystems' A3982 is a complete bipolar motor driver IC with input logic translator to simplify motor stepping and direction for basic office automation and industrial applications. In general operation, this PWM-type device drives the motor one step for each input pulse. There are no phase sequence tables or high-frequency control lines, or complex interfaces for the designer to program.
Integrated video filter targets HDTV apps
Design How-To  
4/8/2005   Post a comment
This video filter from Fairchild Semiconductor is selectable for standard definition (SD), progressive scan (PS) or high definition (HD) standards, and offers tri-level sync and a bypass mode that permits the passing of 1080p and HDTV signals.
Buck regulator is the most compact
Product News  
4/7/2005   Post a comment
Sipex Corporation's SP7653, the newest addition to the company's PowerBlox series of ultraminiature buck regulator ICs, runs at the highest switching frequency in the family to cut overall real-estate requirements by 60 to 70 percent (thanks to a much smaller inductor) compared to its closest family member. The chip, in a 4-by-7 mm DFN package and working at 1.3 MHz, delivers 3 amps at output voltages down to 0.8 volt for applications such as cable and DSL modems.
SOT-723 family offers small footprint but keeps power performance
News & Analysis  
4/7/2005   Post a comment
A broad portfolio of standard components from ON Semiconductor are offered in new SOT-723 package and deliver a low profile and more than 80 percent reduction in footprint without sacrificing power dissipation performance.
16-bit converters optimized for precision measurement apps
Product News  
4/6/2005   Post a comment
Extending its delta-sigma data converters offering, Texas Instruments Inc. (TI) today introduced a pair of high-speed, high-precision analog-to-digital converters (A/D converters) for very linear high-speed operation, and demanding measurement applications in scientific instrumentation, automated test equipment, data acquisition, medical imaging and vibration analysis.
Video crosspoint switch replaces multiple parts in discrete alternatives
Product News  
4/6/2005   Post a comment
A highly integrated triple video switch from Intersil Corp. touts 300 MHz of bandwidth at the 3-dB points, and embedded video sync extraction for high bandwidth RGB switching applications.
Power Concerns for large computational devices: FPGAs and DSPs
News & Analysis  
4/6/2005   Post a comment
FPGAs and DSPs continue to push the limit of computational performance and speed. To fully exploit their true potential within a system, they must be properly powered. Engineers from Texas Instruments and Avnet engage in a Webcast discussion about the power management issues.
An introduction to digital Circuits - Part 6 of an introduction to analog circuit design
Design How-To  
4/5/2005   Post a comment
There are many good reasons to mix analog and digital circuits, writes Reno Rossetti. In this final part of his tutorial on analog building blocks, he looks at fundamental digital building blocks. Understanding the logic gates allows them to build higher level functions like flip-flops, shift registers and communications I/O. They even build the control logic for power management ICs. Part 6, the final part of this tutorial series, shows how.
Dual analog switch doubles ESD withstand level
Product News  
4/5/2005   Post a comment
Intersil Corp.'s dual analog switch features less than 0.5-ohm on-resistance R(ON) across the input signal range, and very low R(ON) flatness.
Precision regulation and programmable power management enables popular consumer electronics
Product News  
4/5/2005   Post a comment
Summit Microelectronics announces two new programmable power manager ICs that enable system designers to digitally program multiple output power supplies and associated power management functions with a few clicks of a mouse.
Linear charger focuses on single-cell Li-ion, Li-polymer batteries
Product News  
4/5/2005   Post a comment
Intersil says its single-cell battery charges is suited for mini-disk players, Bluetooth headsets, MP3 players and other ultra-portables that have small capacity batteries.
Philips' RFID chip solution supports next-generation EPCglobal spec
Product News  
4/5/2005   Post a comment
Philips Electronics has supplied first engineering samples of an RFID chip compliant with EPCglobal's Ultra High Frequency (UHF) Electronic Product Code (EPC) Class 1 Generation 2 (G2) standard. With an increasing number of mandates from major retailers and organizations such as the Department of Defense, Consumer Packaged Goods (CPG) companies and other suppliers around the world are moving towards implementing RFID technology in their supply chains.
SiGe Semiconductor WiMAX transceiver has multiple baseband interfaces
Product News  
4/5/2005   Post a comment
SiGe Semiconductor has announced a transceiver chipset designed to optimise performance of WiMAX systems, broadband wireless access (BWA) applications, and wireless local loop equipment. The transceiver features a broad transmit tuning range and multiple baseband interfaces, allowing equipment manufacturers to reduce cost and time-to-market by re-using a proven RF chain to address worldwide requirements.
Challenges in Intelligent Thermal Control for Notebooks
Design How-To  
4/5/2005   Post a comment
Notebook PCs designs must focus on active and passive measures to improve battery life and reduce heat. However, heat removal is a primary issue to any design success. Here are the important points for a successful design.
RoboGames: battling bots, but no killer app
News & Analysis  
4/4/2005   Post a comment
Steve Ohr showed up at the RoboGames in San Francisco last week, snapped some pictures and talked to some people. Local television and CNN News were quick to capture the clatter and sparks of the robot combat machines, Ohr observed. Events which required more intelligence and programming school, such as maze-running, fire-fighting, autonomous navigation — even Aibo soccer — were more difficult to sit through, he said. They point to many more years of applications development. Here is
PMBus, MCUs and You
Power DesignLine Blog  
4/4/2005   Post a comment
"Make no mistake about it," says Don Alfano of Silicon Labs, PMBus will forever change the way system power management is implemented, and your next design won't be competitive if it isn't PMBus enabled.
Filters simplify video signal conditioning designs
Product News  
4/4/2005   Post a comment
Analog Devices Inc. today introduced a family of video filters aimed to ease analog video signal conditioning designs in HDTV, personal video players and DVD recorders.
High-speed transceiver grants low power for in-vehicle networking apps
Product News  
4/4/2005   Post a comment
AMI Semiconductor's single-chip transceiver combines 1-megabaud operation with extremely low-current standby mode and bus-initiated wake-up capability.
A/D converter performance guaranteed
Product News  
4/4/2005   Post a comment
National Semiconductor Corp. today introduced 12 low-power, 10- and 12-bit analog-to-digital converters (A/D converters) that offer guaranteed performance across three speed ranges between 50 kilosamples per second (Ksamples/s) and 1 megasamples/s (Msamples/s).
Infineon's GEMINAX PRO Low Power ADSL2+ Chipset is first class D-based design
Product News  
4/4/2005   Post a comment
Infineon Technologies has launched GEMINAX PRO, the industry's highest-integration and lowest-power ADSL2+ chipset. Consisting of a 16-channel ADSL2+ Digital Front End (DFE) and a 4-channel Analog Front End (AFE), with integrated low-power Class D line drivers, the chipset reduces power dissipation, footprint and overall system costs by up to 30%, in comparison to other chipsets currently available.
Settable equalizer increases copper throughput to 6.25 Gbits/s
Product News  
4/4/2005   Post a comment
A settable analog equalizer boosts the integrity of NRZ data patterns at 6.25 Gbits/s data rates, and legacy application frequencies of 2.5 Gbits/s, 3.125 Gbits/s, and 5 Gbits/s. The device has the small size and low power consumption of fixed-frequency equalizers, and the flexibility of self-adaptive types " without any of their data errors. Steve Ohr took a briefing with company principals, and generated this review.
Driver ICs illuminate LEDs for small signage
Product News  
4/1/2005   Post a comment
The HV9921/22 family of three-pin constant-current ICs from Supertex is suited to driving low-current LED strings in signage and general lighting applications. These buck-controller chips can be powered from a 20- to 250-volt DC source derived from a universal mains source with front end rectifier. The HV9921 delivers 20 mA, and the HV9922 provides 50 mA.
Dual PWM dials into telecom, consumer apps
Product News  
4/1/2005   Post a comment
Intersil Corporation's ISL6440 is a dual PWM controller IC optimized for converting wall adapter, battery or network intermediate-bus DC input supplies into the system supply voltages required for a wide variety of datacom, telecom, and consumer products.
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