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
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Blog Doing Math in FPGAs Tom Burke 24 comments For a recent project, I explored doing "real" (that is, non-integer) math on a Spartan 3 FPGA. FPGAs, by their nature, do integer math. That is, there's no floating-point ...