Active OR-ing hot-swap IC is also programmable Product News 9/30/2005 Post a comment Summit Microelectronics touts its SMH4814 as the industry's first programmable dual-feed active OR-ing hot-swap controller. The SMH4814
device can monitor and control two independent -48 volt feeds, allowing for redundant power supply control.
De-interlacing with HQV high quality video processing Design How-To 9/30/2005 Post a comment Most video sources, including DVD, standard-definition TV, and 1080i high-definition TV, transmit interlaced images. Instead of transmitting each video frame in its entirety (what is called progressive scan), most video sources transmit only half of the image in each frame at any given time. The founder and engineering architect of Teranex, a unit of Silicon Optix, explains how HQV video processing does de-interlace better.
Comparator draws zero current Product News 9/30/2005 Post a comment Micrel Inc. claims this precision micro-power battery monitor/comparator with an on-chip 2.55-V reference voltage source features an extremely low supply current and draws virtually zero current from a battery or monitored voltage source.
PoE controller sources three operating extras Product News 9/29/2005 Post a comment Maxim Integrated Products' MAX5945 is a quad power-sourcing-equipment (PSE) controller for power-over-Ethernet (PoE) with extra flexibility. In addition to providing the PSE's usual discovery, classification, current limit, and DC and AC load disconnect detection functions for a powered device (PD), the fully compliant IEEE802.3af controller provides three features not available from competing devices, according to the company.
Power management IC oversees add-on modules Product News 9/29/2005 Post a comment Atmel promotes its AT73C211 as the first power management IC for handset add-on modules. "Our AT73C211 is a first in its market," said Michele Casetta, marketing manager for the Power Management and Audio Analog Companion PMAAC Product Line. "The integration of various power supply channels and an ultra-low-power backup supply channel with a power controller circuit for startup and shutdown makes it an ideal companion for every application where power consumption, cost and space are key."
Switches boast fast switching time Product News 9/28/2005 Post a comment Austriamicrosystems' first family of high performance analog switches are said to offer a 40 percent switching time improvement over competing devices, while maintaining low on-resistance flatness and channel matching.
Power IC eases portable management Product News 9/28/2005 Post a comment Dialog Semiconductor's DA9025 multi-block power management subsystem, which contains a buck converter providing up to 400 mA, four low dropout regulators and a supply for a real time clock, has the facility to handle the requirements of a typical lithium-ion powered handheld application (e.g., processor controlled system with memory and analog functionality such as data conversion and sensor interfacing).
Synchronous buck controller billed as the first in an SOT-23 Product News 9/28/2005 Post a comment National Semiconductor says its synchronous buck controller, the LM1770, is the industry’s first in an SOT-23 package. It's designed to replace traditional switching regulators and LDOs in enterprise server and point-of-sale applications with a high-efficiency alternative that takes very little space. Its constant on-time control topology contributes to its space savings; no external compensating components are required.
CEO shakeup at Semtech News & Analysis 9/28/2005 Post a comment Semtech said the employment of President and CEO Jason Carlson has terminated by mutual agreement with the company and that Carlson has resigned as a member of Semtech's board of directors.
California Micro, Epson ink foundry deal News & Analysis 9/27/2005 Post a comment Semiconductor supplier California Micro Devices has completed a wafer supply agreement with Seiko Epson Corp., engaging the Japan-based Epson foundry as a high-volume wafer source for ICs targeting the mobile handset, personal computer and digital consumer electronics markets.
GHz-speed A/D consumes 1.9 W Product News 9/26/2005 Post a comment National Semiconductor Corp. today expanded its family of gigahertz-speed analog-to-digital converters with three converters that are said to offer the industry's best performance with ultra-low power consumption.
Kit jump-starts smart battery development Product News 9/23/2005 Post a comment San Jose, Calif.—Atmel's battery development kit, the ATAVRSB100, speeds time to market for lithium-ion designs using the company's ATmega406 'smart battery' chip. "The ATAVRSB100 implementation allows any engineer regardless of prior knowledge of smart batteries to get a jump-start in their development," said Odd Jostein Svendsli, marketing manager for battery management solutions. "At the same time, engineers can focus on implementing accurate algorithms for their specific battery, knowi
Decoders embed secure video Product News 9/23/2005 Post a comment STMicroelectronics announced its first silicon devices to implement secure video processor (SVP) technology, which is the next generation open specification for the protection of digital video content.
Multichip module broadens its DC/DC horizons Product News 9/22/2005 Post a comment Addressing the demand for higher current and higher frequency power solutions for DC/DC converters, Toshiba America's TB7001FL multichip module (MCM) combines a driver IC with a MOSFET and the company's MOSBD, a single-die combination of a power MOSFET and a Schottky barrier diode, in one package measuring just 8-by-8-by-0.85 mm. The new MCM represents a level of integration beyond the company's dual-channel MOSBD product, which combines a high-side MOSFET with a low-side MOSFET/Schottky barrier
Camera phone image processing "magic," revealed! Design How-To 9/21/2005 Post a comment An Agilent engineer explains how pictures get from image sensor to memory in a camera phone, and how the pictures are improved along the way through image processing "magic" that takes on the challenge of creating a good picture from a CMOS image sensor inside the camera phone.
Power IC maximizes charging-with-management functionality Product News 9/20/2005 Post a comment Texas Instruments' highly functional TPS65800 power IC brings "smart-battery" and power-management technology together on one IC. The programmable chip, which incorporates all essential power transistors, cuts board space requirements by up to 70 percent versus discrete solutions for multivoltage multimedia devices such as smart phones, portable audio and media players, satellite radio, and GPS systems.
Analog front end improves ultrasound images Product News 9/20/2005 Post a comment Analog Devices Inc. rolled out a quad variable gain amplifier (VGA) and two quad analog-to-digital converters (A/D converters) that are said to dramatically improve image quality in advanced medical ultrasound equipment.
Digital pots eliminate instability Product News 9/19/2005 Post a comment A family of volatile, 32-tap digitally-controlled potentiometers (DCPs) from Intersil Corp. were designed to address the need for space-constrained applications that require ultra-low power, such as LCD contrast and backlight brightness control in cell phones, PDAs and GPS receivers.
IXYS says jury findings mostly in its favor News & Analysis 9/17/2005 Post a comment IXYS Corp. said that a jury found the company not guilty of willful patent infringement in its patent dispute with International Rectifier Corp. The jury ruled in favor of IXYS on five out of seven issues presented, according to the company.
Beck IPC web controllers have four serial interfaces Product News 9/16/2005 Post a comment Beck IPC GmbH extends its IPC@CHIP' product family with the SC123/SC143. The new product offers increased performance, more memory and more functionality whilst still offering full software compatibility with the previous SC11, SC12 and SC13 controllers.
Acal PCI controller is microprocessor independent Product News 9/16/2005 Post a comment Acal Semiconductors announces the AMCC S5335 MatchMaker PCI controller. This powerful and flexible 3.3 V device can serve as an easily configured bus target, enabling data transfer at modest rates. For demanding applications, the S5335 can become the bus master, enabling data transfer at rates of up to 132 Mbyte/sec with a 32 bit bus.
Chip charges xenons in a flash Product News 9/15/2005 Post a comment Allegro MicroSystems' A8436, A8438, and A8439 photoflash capacitor charger ICs, which comprise a flyback converter with an internal 40-volt DMOS switch and IGBT driver, provide a highly integrated solution for Xenon photoflash, digital camera, and camera phone applications.
LDO provides low dropout voltage Product News 9/15/2005 Post a comment Micrel Inc. launched a 150-mA low dropout regulator with ultra-low dropout of 60 mV for battery-powered products like cell phones, PDAs, notebook computers, MP3 players and digital cameras.
Audio codec packs features Product News 9/14/2005 Post a comment AKM Semiconductor introduced a multifunction audio codec for digital televisions, home theatre systems, DVD receivers and automotive amplifiers.
Dual-output DC/DC drives 16 white LEDs Product News 9/14/2005 Post a comment Linear Technology's LT3486 is a dual step-up DC/DC regulator that's designed to drive up to 16 white LEDs (8 LEDs in series per channel). The constant-current source delivers up to 1.3 amps for applications from lithium-ion powered handheld devices to automotive backlighting applications.
The 'thermal diode'…A diode or a transistor? Design How-To 9/13/2005 Post a comment This is part two of a three-part series on thermal management. This article explains the unique characteristics of a 2-terminal diode and bi-polar junction transistor, and quantifies the errors that result when these two devices are used interchangeably.
Motor driver gets a step on µC-based systems Product News 9/13/2005 Post a comment Allegro MicroSystems' A3979 is a complete microstepping motor driver with built-in translator targeted at the office automation and industrial markets. A drop-in replacement for the company's A3977SLP with 16 microstep/step resolution,
it is designed to operate bipolar stepper motors in full-, half-, quarter- and sixteenth-step modes, with output drive capability of 35 volts and ±2.5 amps. The chip's "step" and "direction" inputs makes the device suited for applications with multiple motor
Buck regulator IC drives automotive gains Product News 9/13/2005 Post a comment National Semiconductor says its LM5005, for easing industrial, automotive, and telecom designs, is the industry's first 75-volt, 2.5-amp integrated buck regulator. "The LM5005 addresses our customers’ requests for a higher-current version of the popular 75-volt, 1-amp LM5010 and 75-volt, 500-mA LM5007 buck regulators," said Paul Greenland, director of strategic marketing for the Power Management Group. "The entire family is highly integrated for a smaller overall footprint, with unique, hi
Zen and the Art of Protoype Debug Design How-To 9/13/2005 Post a comment In a luncheon address many years ago, Linear Technology's staff scientist Jim Williams pooh-poohed the notion that computer-aided engineering could replace hands-on analog engineering know-how. He used his inability to keep a 1967 Jaguar XKE properly tuned as a metaphor for what young engineers attempt to do: He followed the instructions in the published repair manual — the codified engineering knowledge on that machine — exactly as described. The XKE would not stay tuned. An old sa
High-power white-LED driver operates on 1-2 alkaline cells Design How-To 9/12/2005 Post a comment Just the ticket for new-generation camera phones: the ones that need a flash. Maxim offers a circuit for power LED flash attachments from 1.5V alkalines. The circuit can be configured for any on-off sequence, and a potentiometer controlled dimmer. For October's Planet Anaalog magazine folio.
Silicon Labs names Necip Sayiner CEO News & Analysis 9/12/2005 Post a comment Analog and mixed-signal IC supplier Silicon Laboratories Inc. has appointed Necip Sayiner as president and chief executive, replacing interim chief executive officer Nav Sooch, who will continue as the company’s chairman.
Blog Doing Math in FPGAs Tom Burke 15 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 ...