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posted in January 2004
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Every function in this power management IC
Product News  
1/31/2004   Post a comment
austriamicrosystems touts its AS3603, an enhanced version of its AS3601 power management platform, as an industry benchmark for functionality and flexibility for mobile applications including cell phones, PDAs, and digital cameras. It features a DC/DC converter and ultra-low power LDOs, all programmable in 0.05-volt steps. The AS3603's feature set also includes a a driver for white LEDs, and a programmable 1-watt audio amplifier. The company says this chip takes up less than half the space of co
MOSFET-based OR-ing controller cuts power losses
Product News  
1/31/2004   Post a comment
Linear Technology's new LT4351 drives a MOSFET pass-element to implement an OR-ing diode solution for N + 1 redundant supply applications. What are the advantages of doing it that way? See product review.
Op Amp sets benchmarks for power and noise
Product News  
1/28/2004   Post a comment
LTC says that these two families of op amps have set some significant benchmarks for low places including power and noise. The company says these devices consume only 50% as much power as competitive devices.
Improved packaging and layout minimizes op amp distortion
News & Analysis  
1/28/2004   Post a comment
When using operational amplifiers, optimizing the layout to achieve the lowest large-signal distortion appears to be an abstract problem. A part might provide distortion as low as "100 dB when evaluated on a board provided by the manufacturer, but might get 10 dB worse when it is plugged into the user's system. An ADI engineer shows how they've solved that problem.
New technology offers designers an electronically adjustable micro-resistor
Product News  
1/27/2004   Post a comment
Microbridge Technologies Inc., a specialist in micro-systems technology, says its new polysilicon resistor dubbed the Rejustor is the industry's first electronically precision-adjustable micro-resistor. This device provides high-precision resistive trimming without requiring manual or mechanical adjustments.
Audio power amplifier chip delivers 200W output, targets multi-channel apps
News & Analysis  
1/27/2004   Post a comment
STMicroelectronics is shipping a new single-chip audio power amplifier that delivers 200W, the highest power available from an integrated commercial device.
Triple 10-bit video DAC cruises at 330 MSPS
News & Analysis  
1/27/2004   Post a comment
Philips Semiconductor introduced a new triple video digital to analog converter designed for PC video cards, high resolution image processing and digital video.
Filter-less high efficiency Class D audio amplifier sounds right for portable applications
News & Analysis  
1/27/2004   Post a comment
National Semiconductor introduced a filter-less high efficiency Boomer audio amplifier for cellular phones and portable consumer devices. It offers high efficiency that results in less system heat and longer battery life.
Updated process slashes size of CDMA RF filters
News & Analysis  
1/27/2004   Post a comment
Agilent Technologies Inc. has reworked its proprietary film bulk-acoustic-resonator (FBAR) process technology to achieve a 66 percent reduction in the size of RF duplexer and RF filter devices for code-division multiple-access PCS phones operating in the 1,900-MHz band.
Power management unit ideal for handheld devices
News & Analysis  
1/27/2004   Post a comment
Austriamicrosystems has unveiled the AS3603, an enhanced version of its AS3601 power management platform. It provides mobile device manufacturers with a versatile power management IC.
Wavesat and Atmel join forces to lead the 802.16 broadband wireless access market
News & Analysis  
1/27/2004   Post a comment
Wavesat chose Atmel's SiliconCITY capability to design and manufacture the first WiMAX compliant IEEE-802.16d chips. Wavesat has been working on this new OFDM modem technology since 1997 and this new chip represents their sixth generation of OFDM modem.
RGB Amplifier Optimized for UXGA LCD Displays
News & Analysis  
1/27/2004   Post a comment
Linear Technology introduces the LT6553, a triple video amplifier with an internally fixed gain of 2. Eliminating the need for external gain setting resistors, the LT6553 features a -3dB bandwidth of 650MHz. The fast slew rate of 2500V/us coupled with a quick 6ns settling time enhances the AC performance, resulting in sharper video images.
Multimedia card striving to become universal memory
News & Analysis  
1/27/2004   Post a comment
The MultiMediaCard Association is equipping its flash memory cards with higher data rates, a wider bus and more security in hopes of overtaking the CompactFlash card for market dominance. From Munich, Christoph Hammerschmidt reports.
Electronic Dispersion Compensation Steps Up to 10-Gbit/s Link Challenges
News & Analysis  
1/26/2004   Post a comment
Electronic dispersion compensation has evolved to a point where it now holds the key to providing real throughput and distance improvements in 10-Gbit receiver designs. From commsdesign.com, some University of Cambridge engineers examine dispersion patterns and make recommendations.
RGB Amplifier Optimized for UXGA LCD Displays
Product News  
1/26/2004   Post a comment
Linear Technology introduces the LT6553, a triple video amplifier with an internally fixed gain of 2. Eliminating the need for external gain setting resistors, the LT6553 features a -3dB bandwidth of 650MHz. The fast slew rate of 2500V/us coupled with a quick 6ns settling time enhances the AC performance, resulting in sharper video images.
Philips to work with IBM on RFID
News & Analysis  
1/26/2004   Post a comment
Royal Philips Electronics and IBM Corp. have announced an alliance to jointly pursue the growing market for RFIDs and smart cards, with Philips Semiconductors providing smart-card controller ICs and RFID chip technology while IBM supplies its consulting, project management and implementation skills. From Paris, Junko Yoshida reports.
DSPs expand front in consumer media
News & Analysis  
1/26/2004   Post a comment
Analog Devices Inc.'s rollout Monday (Jan.26) of its latest Blackfin processors reinforces a growing industry consensus that consumer media devices could mark the next great opportunity for digital signal processors.
LG-KV1300 phone: Analog on the leading edge
Teardown  
1/26/2004   Post a comment
LG Electronics' newest cell phones put their emphasis on multimedia. A Wolfson Microelectronics audio codec supplies a stereo output, while two Texas Instruments Class D amplifiers drive the speakers. There's a Samsung CMOS imager with VGA resolution, and a two-color LCD display. From the January PA magazine folio, Portelligent's David Carey finds other analog parts inside.
Are "reversible" computers more energy efficient, faster?
Blog  
1/26/2004   Post a comment
A group of researchers at the Department of Computer and Information Science and Engineering (CISE) at the University of Florida is working to make a reality a radical idea for making computers more energy efficient " as well as smaller and faster.
Updated process slashes size of CDMA RF filters
Product News  
1/26/2004   Post a comment
Agilent Technologies Inc. has reworked its proprietary film bulk-acoustic-resonator (FBAR) process technology to achieve a 66 percent reduction in the size of RF duplexer and RF filter devices for code-division multiple-access PCS phones operating in the 1,900-MHz band.
Filter-less high efficiency Class D audio amplifier sounds right for portable applications
Product News  
1/26/2004   Post a comment
National Semiconductor introduced a filter-less high efficiency Boomer audio amplifier for cellular phones and portable consumer devices. It offers high efficiency that results in less system heat and longer battery life.
Chip makers post mixed results
News & Analysis  
1/23/2004   Post a comment
Free satellite TV's a hit in a freed Iraq
News & Analysis  
1/23/2004   Post a comment
Since the overthrow of Saddam Hussein's regime last April, sales of digital satellite decoders to Iraq have been explosive. While no official statistics exist, chip makers said they are being deluged with orders from set-top vendors. EE Times' Junko Yoshida reports.
Digitally programmable analog signal conditioner just right for pressure bridge sensors
Product News  
1/23/2004   Post a comment
TI introduced a digitally programmable analog signal conditioner designed for pressure bridge sensors. The company says the IC provides amplification, digital calibration and error compensation that enables system performance approaching the inherent sensor repeatability.
Online design tool for op amps -- Life just got easier
Product News  
1/23/2004   Post a comment
National Semiconductor Corporation announced its Amplifiers Made Simple tool, the industry's first online design tool created to speed the selection, design and testing of many types of operational amplifiers for medical, scientific, industrial and automotive applications.
Triple 10-bit video DAC cruises at 330 MSPS
Product News  
1/23/2004   Post a comment
Philips Semiconductor introduced a new triple video digital to analog converter designed for PC video cards, high resolution image processing and digital video.
Audio power amplifier chip delivers 200W output, targets multi-channel apps
Product News  
1/23/2004   Post a comment
STMicroelectronics is shipping a new single-chip audio power amplifier that delivers 200W, the highest power available from an integrated commercial device.
Most Accurate High Speed Op Amps?
News & Analysis  
1/22/2004   Post a comment
The new Elantec EL515x series features 0.3 mV input offset voltage combined with up to a 630 MHz 3dB bandwidth and a 640 V/us slew rate. Paul O'Shea offers the first report. .
Fastest Fixed-Gain Amplifier for Video Signal Processing
News & Analysis  
1/22/2004   Post a comment
Paul O'Shea reviews the TI ultra-wideband, fixed-gain video buffer amplifier from the company's Burr-Brown product line. It provides gains of +1, -1 or +2 using internal resistors. The combination of the 700 MHz bandwidth, the 2500 V/us slew rate, and 13 mA supply current makes the OPA693 an ideal video line driver or analog-to-digital converter input driver.
Wireless Connectivity Device Complements Company's Digital Home Product
News & Analysis  
1/22/2004   Post a comment
Wireless connectivity is becoming an essential home networking technology, and the introduction of Conexant's 802.11g chip will enhance their position in this booming market.
First Digitally Programmable, Signal-Conditioning Auto-Zero Amplifier
News & Analysis  
1/22/2004   Post a comment
The ADI op amp AD8555 offers designers a high-accuracy, zero-drift, turnkey solution to program both gain and offset, allowing for greater design flexibility and lower costs in automotive, medical, and industrial process control applications.
Pointers on battery-bounce protection
News & Analysis  
1/21/2004   Post a comment
When you drop a battery-powered device, the impact can open internal contacts for as long as 10ms, producing a momentary loss of power that can cause a false low battery indication. You can insure continuity of power by adding a large capacitor across the battery, but the capacitor must provide a certain amount of voltage headroom as margin against the discharge of load current. Maxim engineers offer advice for keeping the levels up.
LCD digit driver helps reduce component count for feature phones
News & Analysis  
1/21/2004   Post a comment
Austriamicrosystems' AS2591 is a CMOS IC used for driving LCDs with four backplanes and 24 (or 31) segments. This arrangement provides 12 (or 16) 7-segment digits " and 12 symbols. It is meant to provide an easy interface for the miniature alpha-numeric displays used in cellular handsets and feature phones. One of the company's engineers shows how the display driver helps build a "handsfree" cell phone (available as a reference design) with a low component count.
HyperTransport-to-PCI-X bridge puts legacy peripherals in touch with data-hungry workstations and servers
Product News  
1/21/2004   Post a comment
Alliance Semiconductor's AS90L10204 enables system manufacturers to utilize an existing infrastructure of peripherals and system components based on PCI-X, such as Network Interface Cards (NICs), RAID Controllers, Host Bus Adaptors (HBA) and others.
Samsung introduces chip set for U.S. HDTV market
News & Analysis  
1/20/2004   Post a comment
Samsung Electronics has introduced a two-chip solution for digital HDTV and digital HD set-top box applications at CES last week. EE Times' Yoshiko Hara has this report.
Templeton is incoming CEO, Engibous chairman, at TI
News & Analysis  
1/16/2004   Post a comment
Texas Instruments Corp. said long-time CEO Tom Engibous will hand over the chief executive officer's role to Rich Templeton, who has been TI's chief operating officer since 2000.
Most Accurate High Speed Op Amps?
Product News  
1/16/2004   Post a comment
Intersil Corporation introduced six new high-accuracy, high-speed amplifiers for measurement and data acquisition applications that require 0.01% accuracy. The family of devices sets a new standard for expectations of DC accuracy in high-speed op amps.
Negative-voltage LDO touts highest PSRR
Product News  
1/14/2004   Post a comment
Texas Instruments says its TPS723xx family of low-dropout, negative-voltage linear regulators deliver the industry's highest power supply rejection ratio (PSRR) - 65 dB at 1 kHz - for 200-mA, negative-voltage applications. The LDOs, suited to battery-powered applications including portable charge-coupled device (CCD) cameras and PDA displays, and applications with noise-sensitive circuitry such as optical drives, optical networking and video amplifiers, provide an adjustable -1.2 to -10 volts or
PWM audio processor targets home theater systems
Product News  
1/14/2004   Post a comment
Texas Instruments new TAS5508 PWM audio processing chip enables consumer electronics manufacturers to develop high-power, cost-effective 5.1, 6.1 and 7.1 systems at 500, 600 or 700-watts, reducing size and cost for home theater systems and DVD receivers.
New performance level set with wideband, current-feedback amplifier for video signal processing and wireless communications
Product News  
1/14/2004   Post a comment
TI announced a low-power, current-feedback amplifier unmatched bandwidth at low and high gains. The device is designed for applications in video signal processing, cable modems, wireless communications and test instrumentation.
Fastest Fixed-Gain Amplifier for Video Signal Processing
Product News  
1/14/2004   Post a comment
Paul O'Shea reviews the TI ultra-wideband, fixed-gain video buffer amplifier from the company's Burr-Brown product line. It provides gains of +1, -1 or +2 using internal resistors. The combination of the 700 MHz bandwidth, the 2500 V/us slew rate, and 13 mA supply current makes the OPA693 an ideal video line driver or analog-to-digital converter input driver.
Timing Synchronization speeds network access
News & Analysis  
1/14/2004   Post a comment
As the essential foundation of all multiplexing, switching and transmission equipment, system timing's importance has been growing as the demands and variety of communications services increase. An Agere Systems engineer offers insights into the timing issues which effects communications between chips, boards and server card cages.
Integrated 3.2Gbps laser driver for vertical cavity surface emitting laser diodes
News & Analysis  
1/13/2004   Post a comment
Linear Technology introduces an integrated 3.2Gbps VCSEL (Vertical Cavity Surface Emitting Laser) diode driver for short reach and medium reach optical communications. The LTC5100 provides a very low noise transmission eye diagram. It incorporates a digital controller with on-chip A/D and D/A converters to provide continuous closed-loop monitoring and control of critical laser parameters.
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