Energy saving products highlight IR's mixed-growth revenue picture News & Analysis 7/29/2005 Post a comment While International Rectifier's total annual revenues grew just $100-million over last fiscal year (from $1.06 billion in fiscal 2004 to $1.17 billion in fiscal 2005), the company's biggest growth was reflected in energy-saving products, followed by computer industry products and those for military and aerospace customers. Alex Lidow is enthused about energy-saving products.
CCFL inverter delivers sure strikes Product News 7/29/2005 Post a comment Maxim Integrated Products' MAX8729 is a fully integrated controller optimized to
drive multiple cold-cathode fluorescent lamps (CCFL) used in LCD monitor and TV applications. Using a topology that the company touts as unique, the controller works in a resonant mode during striking and switches over to a fixed-frequency mode after the lamps are lit to ensure reliable striking and operation under all conditions while reducing electrical stress on the transformer.
Buck Topology Provides Boost with Low Ripple and Noise Design How-To 7/29/2005 Post a comment Battery operated circuits often require a regulated voltage that is higher than a low battery can supply and lower than a fully charged or charging battery. Here's an article that tells you what you can do to provide a regulated output voltage while the input voltage varies for these battery operated devices.
Tool kit modernizes PFC designs Product News 7/29/2005 Post a comment International Rectifier's IRAC1150-D2 power-factor-correction (PFC) control design kit, with a complementary design tool that can be accessed from the company's myPOWER online site, brings PFC designs up to date. "This reference design allows designers to immediately see the benefit of IR’s one-cycle control performance without a major redesign or spending a lot of time evaluating and prototyping a new PFC circuit," said Stephen Oliver, marketing manager for AC/DC products.
AMI Semi restructures business, sees profit shrink News & Analysis 7/28/2005 Post a comment Mixed-signal semiconductor supplier AMI Semiconductor has realigned its business by integrating its foundry services business into its mixed-signal business unit, a move the company said would offer customers a full range of options from applications-specific products to custom designs and foundry services.
Stand alone Li-ion chargers get even smaller Product News 7/28/2005 Post a comment Billed as a complete stand alone linear charger in a 2-by-2 mm DFN, Linear Technology's LTC4065 and LTC4065A can deliver up to 750 mA for single-cell lithium-ion batteries and applications in digital still cameras, portable point-of-sale and diagnostic equipment, cell phones, PDAs and USB-equipped handheld devices.
Storage growth boosts Q2 results for LSI Logic News & Analysis 7/27/2005 Post a comment Semiconductor supplier LSI Logic Corp. posted second quarter 2005 net earnings of $25 million, or 6 cents per share on sales of $481 million, compared to $5 million, or 1 cent per share on sales of $450 million the first quarter.
Fast parametric measurement-unit chips have small footprints Product News 7/27/2005 Post a comment Expanding an existing line of standards-based per-pin parametric measurement unit ICs, chip maker Semtech is dishing up a family of three PPMU devices. They're claimed to have extremely fast settling times and the smallest form-factors for 40-mA devices. The use of BiCMOS also permits them to accommodate a 16.25-V range.
IDT sales fall short of expectations News & Analysis 7/27/2005 Post a comment Communications IC supplier Integrated Device Technology (IDT) Inc. posted GAAP earnings of $6.6 million, or 6 cents per share on sales of $93.8 million in the first fiscal 2006 quarter ended July 6, compared with $6.2 million, or 6 cents per share on sales of $97.0 million in the previous quarter.
Buck regulator claims new size-efficiency high Product News 7/27/2005 Post a comment Using a new analog process, Texas Instruments' TPS62110, a 1.5-amp DC/DC step-down regulator IC, boasts an efficiency of 95 percent to extend battery life in industrial handhelds, portable test equipment, and consumer devices powered by two- to three-cell lithium-based batteries or a 12-volt power source. TI says the device achieves the smallest solution size with highest power efficiency over a wide input range.
Agere posts profit on tax benefit News & Analysis 7/26/2005 Post a comment Semiconductor supplier Agere Corp. recorded net income of $120 million, or 66 cents per share, on sales of $433 million in its third 2005 fiscal quarter ended June, compared with a net loss of $68 million, or 38 cents per share on sales of $417 million the previous quarter.
Mindspeed meets guidance but posts loss News & Analysis 7/25/2005 Post a comment Mindspeed Technologies Inc. reported fiscal 2005 third-quarter loss of $9.5 million, or 9 cents per share, on sales of $27.7 million, compared to a loss of $18.4 million, or 18 cents per share on sales of $26.6 million in the previous fiscal quarter.
Window comparator triggers pulse-width to voltage converter News & Analysis 7/25/2005 Post a comment Analog circuits are often used to advantage to offload tasks from microcomputers freeing them up to concentrate on higher priority tasks while the analog circuit performs its function independent of the microcomputer, writes a Linear Technology Corp engineer in July's Planet Analog magazine. But when an event or condition requires the analog circuit to generate an interrupt to request the microcomputer’s attention, it must be capable of responding in a fast time window — and in a way
Anadigics narrows loss as broadband sales improve News & Analysis 7/25/2005 Post a comment Wireless and broadband communications supplier Anadigics Inc. reported a loss of $9.1 million, or 27 cents per share on sales of $23.9 million in the second quarter, compared to a loss of $11.5 million, or 34 cents per share on sales of $21.8 million in the year-ago quarter, and $11.7 million, or 36 cents per share on sales of $22.7 million in the year-ago quarter.
D/A converter cuts power by 70 percent Product News 7/25/2005 Post a comment Analog Devices, Inc. has developed a lower-power version of its TxDAC transmit digital-to-analog converters (D/A converters) that is said to reduce power dissipation by up to 70 percent over the previous generation.
Audio A/D converter touts eight-channels Product News 7/25/2005 Post a comment Cirrus Logic Inc. rolled out an audio analog-to-digital converter (A/D converter) IC that is said to eliminate the need for multiple stereo A/D converters for surround-sound or multichannel applications.
Clocking requirements spur buffer demand Product News 7/22/2005 Post a comment Alliance Semiconductor Corp. expanded its product offering with a new family of high-performance zero delay buffers (ZDB's) and non-zero
delay buffers (NZDB's) in response to precise, high-performance clocking requirements.
Skyworks turns in quarterly profit, meets revenue guidance News & Analysis 7/21/2005 Post a comment Skyworks Solutions reported revenue of $191.5 million for its fiscal third quarter, which ended July 1, up slightly from the $190.5 million that the company posted during its fiscal second quarter but down from the $207.4 million in revenue that it reported for the same period in 2004.
Intersil expects sales, earnings to rise News & Analysis 7/21/2005 Post a comment Analog semiconductor supplier Intersil Corp. reported net earnings of $17.3 million, or 12 cents per share on sales of $139.1 million in the second quarter of 2005, up from $12.8 million, or 9 cents per share on sales of $128.1 million in the previous quarter.
13-bit A/D converter boosts receiver performance Product News 7/21/2005 Post a comment Texas Instruments Inc.'s 13-bit analog-to-digital converter (A/D converter) features 68 dB signal-to-noise ratio (SNR) and 79 dB spurious-free dynamic range (SFDR), at the maximum sample rate of 210 megasamples/second and an input frequency of 230 MHz.
Smaller power ICs facilitate extended PoE Product News 7/20/2005 Post a comment Focusing on higher density for extended portable applications, Power Integrations has further expanded its DPA-Switch family for power-over-Ethernet (PoE). The company's four new DPA-Switch devices come in S-PAKs, which provide a footprint savings of 40 percent and reduce package height by 55 percent as compared to the existing TO-263. There's no tradeoff in equivalent thermal impedance.
Audio converter boasts wide sampling rate Product News 7/20/2005 Post a comment AKM Semiconductor's low-cost, audio analog-to-digital (A/D converter) for audio applications touts a dynamic range of 102 dB signal-to-noise ratio (SNR) and -96 dB total harmonic distortion plus noise (THD+N).
Quad-output controller hits the books Product News 7/20/2005 Post a comment Intersil's ISL6232 is a system quad-output power supply controller for notebook computers that's optimized for converting battery, wall adapter or network DC input voltage into system supply voltages required for portable applications.
Dual-input chip eases on-the-fly charging Product News 7/20/2005 Post a comment Intersil's ISL6299 is a fully integrated dual-input battery charger IC for single-cell Li-ion/polymer applications. The chip, working off the USB port (7 volts maximum) or desktop cradle/AC adapter (up to 28 V, touted as the highest in the industry) is thus designed to offer compact support for cell phones, smart phones, PDAs, MP3 devices, portable multi-media players, digital still cameras, and other portable industrial and test equipment.
Scaling JTAG architecture to cope with evolving systems Design How-To 7/20/2005 Post a comment Most design teams rarely make a complete leap of faith for new designs into JTAG; instead they prefer to take small manageable steps towards complete adoption, writes this National Semiconductor technologist. Some team disciplines make extensive use of this access while others use the access in a limited manner. But JTAG can scale, says the author; it can even make sense as a systems bus. This article shows how.
Five-LDO chip eases power management Product News 7/19/2005 Post a comment Semtech Corp.'s SC900, a power management IC with five ultra-low dropout regulators (ULDOs), includes an I2C interface to facilitate precise control of each regulator's output voltage, power-good monitor setpoint, reset logic and active/nonactive shutdown mode. The chip is suited to cellular phones, PDAs and similar portable equipment applications where it's essential to maintain performance as the battery voltage slowly declines.
D/A-Wandler liefert 200 Volt Signalspannung News & Analysis 7/19/2005 Post a comment Analoge Ausgangsspannungen bis zu 200 Volt liefert ein D/A-Wandlerbaustein des kanadischen Chipherstellers Goal Semiconductor. Damit können Entwickler komplexe diskrete Schaltungen durch einen schlichten IC ersetzen.
Temperature sensors target higher accuracy Product News 7/19/2005 Post a comment As microprocessors move from 90 nanometers to 65 nm, temperature sensor
suppliers like Analog Devices, Andigilog, Maxim Integrated Products, Microchip
Technology, National Semiconductor and Texas Instruments are developing more
Architecting miniature hard disk drives for battery saving Design How-To 7/18/2005 Post a comment New media players are allocating roughly 10 percent of their power budget to storage needs, 110mW on average, writes this Agere Systems engineer, in the July issue of Planet Analog magazine. But battery life, on a device like the Apple iPod, may be just as important as the number of songs it holds. The key to power efficiency, says Agere, is controlling duty cycles.
IGBT drivers float new high-voltage solution Product News 7/18/2005 Post a comment Powerex' new high-voltage ICs (HVICs), utilizing the company's BiCMOS junction isolation design, provide level-shifting and floating logic circuits at both 600 and 1200 volts for driving MOSFETs and IGBTs in motor drive, lighting ballast, power supply, and plasma display applications.
The truth about Class D amplifiers: a manufacturer protests Design How-To 7/16/2005 Post a comment Kevin Belnap took exception to Steve Ohrs May 9th column in EE Times, and Planet Analog invited his response. Ohr is exaggerating Class Ds distortion characteristics, Belnap says. Class D can appeal to audiophiles and listening demonstrations at CES have proven that.
Protecting the HDMI interface Design How-To 7/16/2005 Post a comment The High-Definition Multimedia Interface (HDMI) combines a high-speed unidirectional TMDS data link with low speed, bi-directional control and status links (DDC and CEC) and configuration protocols in a single user-friendly high-performance connector. Delicate signaling and precise protocols must endure serious misuse without complaint. For any I/O signal exposed to the outside world, ESD strikes are a constant danger during interconnection. A single spark can render an entire entertainment s
iPOWIR block adds muscle Product News 7/15/2005 Post a comment International Rectifier says its new iP2003A, a 40-amp multichip module that's part of the company's iPOWIR series, is fully optimized for high-current, multiphase synchronous buck converters. It's designed specifically for low-voltage power rails (3 to 13.2 volts) in servers, desktops and data communication systems.
Shift Happens -- Part 2 Power DesignLine Blog 7/15/2005 Post a comment Don responds to the queries he received from his previous Shift Happens blog where he suggested that the availability of digital control would catalyze innovation in base switch mode topologies. Is digital sounding the death knell for analog control? Probably not but it is a significant change.
Blog Doing Math in FPGAs Tom Burke 2 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 ...