Cirrus Logic closes sale of digital video product line assets Product News 6/30/2005 Post a comment This looks like it could be a subject of column: Cirrus Logic has had quite a number of "false starts" over the years. Digital video may be one of them. Intersil did well to focus on analog and mixed-signal building blocks. Will the market be as kind to Cirrus. Stay tuned...
Energy-harvesting chips and the quest for everlasting life Design How-To 6/30/2005 1 comment What a fix we have ourselves in - we want very small, battery operated devices, but the battery life available can't keep abreast with the shrinking size and increasing needs. Is there a solution to obtain this, the holy grail of portables - the everlasting operational life? Take a look at what Georgia Tech is working on.
Modified LDO regulator sinks PECL-termination current Design How-To 6/28/2005 Post a comment For high-speed clock and data systems, positive emitter-coupled-logic (PECL) - a differential signaling scheme - is emerging as a preferred alternative to single-ended CMOS and TTL logic. High-speed ECL offers differential I/O, with excellent skew and jitter control, along with fast rise and fall times. From the June issue of Planet Analog magazine, a Maxim engineer shows how to extract high current.
Single-chip, triple differential receiver reduces board space by more than half Product News 6/28/2005 Post a comment Analog Devices Inc.' AD8143 is a compact, single-chip solution that receives differential signals over a twisted pair cable. The triple differential receiver is primarily designed to receive RGB (red, green, blue) signals with resolutions up to 1600 X 1200; however, it can able be used to receive any other type of differential analog signal or high-speed data transmission.
Tiny LDOs aimed at 3G wireless handsets Product News 6/28/2005 Post a comment Texas Instruments Inc. unveiled a series of 200-mA low-dropout linear regulators in a chip scale package, which tout low noise and quiescent current, and a high power supply rejection ratio.
Under the Hood: Sendo X Smartphone promotes analog underground Teardown 6/27/2005 Post a comment The ever-present mobile phone continues to connect, entertain, organize, and occasionally annoy, but to be sure the technology never stands still, writes David Carey in this teardown report for Planet Analog. In the battle to deliver big things in small packages, Sendo of the UK has rolled out the Sendo X, which hides a wealth of unconventional features behind a very conventional phone appearance. Might be the name for a rock group, he jests: "Analog Underground."
Charger ICs for cameras and handhelds are package perfect Product News 6/24/2005 Post a comment Emphasizing the industry's smallest packages for circuits of their type, National Semiconductor says its two new battery-charger products, one a single-cell USB/AC charger and the other a charge control and protection circuit for embedded lithium-ion/polymer batteries, greatly ease integration into cellular phones, digital still cameras, MP3 players, personal digital assistants (PDAs) and handheld instrumentation. These devices, which require few external components, deliver up to 1.2 amps.
Motor platform spins simpler solutions Product News 6/24/2005 Post a comment STMicroelectronics new family of monolithic motor drivers form the heart of an open, scalable solution for a wide range of motion control applications. The new powerSPIN platform includes devices suitable for driving DC motors, stepper motors and brushless DC motors, along with a comprehensive support package including evaluation boards, PC software and detailed application notes.
White-LED driver pair eases series, parallel backlighting Product News 6/23/2005 Post a comment Vishay Intertechnology's two new white LED drivers, the SiP12401 boost controller and SiP12501 boost converter, are optimized for backlighting small liquid crystal displays in cell phones and digital cameras. These drivers, one suited to series- connected LEDs and the other to parallel-connected LEDs, deliver up to 80 percent efficiency.
China's analog market races ahead News & Analysis 6/23/2005 Post a comment The world recognizes China as a major manufacturing region and a heavyweight in the analog semiconductor market. China's analog revenue is expected to strongly outperform the rest of the world. But who is consuming all those ICs?
Save a buck with a coupled inductor Design How-To 6/22/2005 Post a comment Here are some simple ways you can use coupled inductors circuits as an alternative to using two switchers. The efficiency is better and the parts count is lower than a two switcher design. It's worth a look.
A/D-Wandler mit niedrigem Stromverbrauch News & Analysis 6/22/2005 Post a comment Für die Verwendung in kleinen portablen Geräten hat Analog Devices den Analog-Digitalwandler AD9237 entwickelt. Das Bauteil ist nicht nur klein, es benötigt auch weniger Energie als andere vergleichbare Chips.
Sipex Corp. faces Nasdaq delisting News & Analysis 6/22/2005 Post a comment Analog semiconductor supplier Sipex Corp. will be delisted from the Nasdaq exchange effective June 23, according to a letter from the Nasdaq Listings Qualification Panel.
4-channel sequencer at no loss for performance Product News 6/21/2005 Post a comment Summit Microelectronics says its SMT4504 power supply tracking and sequencing controller is the industry's first four-channel "lossless" type, suited to applications such that provide complete managment of a quad supply while incorporating a level of programmability and integration not seen previously. As the first claimed lossless tracker, it eliminates the need for external series MOSFETs by interfacing directly to a converter's TRIM input pin. Thus in addition to reducing board space, compone
High-voltage IGBT drivers take half the space Product News 6/21/2005 Post a comment International Rectifier's new high-voltage gate driver and current-sense ICs in the company's IR22xxx family combines IGBT control with a sophisticated set of protection functions. These 1200-volt devices, with complementary 600-volt devices (IR21xxx) also available, feature up to 30 percent fewer components and half the footprint compared to discrete optocoupler- or transformer-based solutions.
About that high quiescent current Design How-To 6/21/2005 Post a comment Bill Klein is back with a new installment of his popular troubleshooting column, based on the queries he gets. This one's about runaway standby current, the kind that makes things get really hot. Read about the latest "Call I took last week..."
Top-down verification guides mixed-signal designs Design How-To 6/21/2005 Post a comment With mixed signal Design, the challenge is not in size, write Cadence veterans Ken Kundert and Henry Chang, reprising issued raised at last week's Design Automation Conference. The challenge is in the sheer difficulty of achieving the needed performance, they say. Analog designers are used to erecting circuit from the bottom up. But Top Down Verification not only aids design, but also puts modeling and simulation on a schedule. This article is from the June Planet Analog magazine folio.
Semtech to acquire Xemics for $43 million News & Analysis 6/20/2005 Post a comment Analog and mixed-signal semiconductor supplier Semtech Corp. has announced plans to acquire Xemics SA, a fabless developer of ultra-low power analog, radio frequency and digital ICs, for $43 million in cash.
Smart power IC simplifies AC-mains metering Product News 6/20/2005 Post a comment STMicroelectronics' STPM01 incorporates all of the core circuitry required to serve as single chip electric (AC mains) energy/power meter in the simplest low-end equipment or as a peripheral in sophisticated microprocessor-based meters that measure such quantities as reactive power. It's designed as viable alternative to the traditional electromechanical meter, which has remained essentially unchanged for over a century, and claims higher accuracy, reliability and robustness. Boasting higher fle