Charge-pumps brighten display picture Product News 5/31/2004 Post a comment Three new generations of charge-pump from Advanced Analogic Technologies bring a new level of functional, high-efficiency, and cost- and space-saving performance to LED- and LCD-based display applications. These chips maximize brightness in white LEDs (AAT3140/41) in single-cell portable applications, improve camera flash performance (AAT3112), and provide the positive and negative voltages (AAT3190) for thin-film transistor liquid-crystal displays (TFT-LCDs), organic light-emitting diodes (OLED
High quality audio amp for the home with minimal design effort Product News 5/28/2004 Post a comment National Semi offers three new stereo audio amplifiers in its Overture line of products for home stereo systems. Check out the review by Editor Paul O'Shea on these newest audio amplifiers that feature quiet fade-in/fade-out mute mode circuitry for gradually bringing the sound up or down.
Resistive tap monitors and sets W-CDMA power levels Design How-To 5/27/2004 Post a comment In a cell phone it's important to set the power level of a power amplifier (PA) precisely. This is necessary to compensate for the temperature variation and to set the correct power, which is dictated by the base station. A well-established method to set the power level precisely is closed loop power control. It measures the PA output power and adjusts the power level depending on the measurement. In this article, a National Semiconductor engineer offers the theory of operation for a built-in po
Minolta Dimage X: a different view on optics Teardown 5/27/2004 Post a comment Electronics integration continues to reduce camera form-factor and cost though a clear partitioning of digital and analog functions suggests little technical or economic benefit from combining disparate functions into a common IC process. Sometimes the road less-integrated provides an optimum balance of function, design risk, and cost, particularly when it comes to mixed-signal systems, writes David Carey in this installment of Under The Hood " Analog Edition. That doesn't mean there isn't a lot
Class-D audio power amplifiers balanced just right for small LCD TVs Product News 5/26/2004 Post a comment Providing liquid crystal display (LCD) TV manufacturers with the feature set required to meet high efficiency audio demands, TI announced two new stereo Class-D audio power amplifiers for 17 to 23 inch LCD-TVs. The two new devices feature efficient Class-D operation, driving up to 10W of continuous stereo output power with no external heat sink.
Dialog, Intel sampling combo for mobile devices News & Analysis 5/26/2004 Post a comment Dialog Semiconductor Plc has started sampling a tightly integrated system level power management IC that in a single CMOS device supports both a communications processor and the Intel PXA27x family of applications processors.
Intersil taps AMI Semiconductor's memory technology News & Analysis 5/26/2004 Post a comment AMI Semiconductor Inc., a designer and manufacturer of integrated mixed-signal and structured digital products, has been selected by Intersil Corp. to help design analog ICs at the sub-micron levels for Intersil's consumer, computing, industrial and communications products. From Singapore, Tony Santiago picks up the scent.
Flexible PWM controller fits IBA bill Product News 5/26/2004 Post a comment National Semiconductor positions its LM5033 as the first fully-featured 100-volt DC/DC pulse width modulation (PWM) controller for meeting the needs of modern intermediate bus architectures (IBAs). "The introduction of the intermediate bus is an inflection point in the evolution of distributed power architectures," said Paul Greenland, marketing director for the Power Management group. "Customers expect the next generation of intermediate bus converters to be flexible and efficient without sacri
Intersil verschafft sich Breitband-IP News & Analysis 5/26/2004 Post a comment Der Chiphersteller Intersil kauft erneut zu: Nach der Übernahme von Xicor hat der Analog-Spezialist jetzt das Startup-Unternehmen BitBlitz Communications gekauft. Spezialität von BitBlitz sind Kommunikations-Chips, insbesondere Serializer/Deserializer- (Serdes)-Bausteine.
Build a high efficiency two-phase power supply Design How-To 5/26/2004 Post a comment DDR memory has some unique power supply requirements. A typical DDR power supply for a PC application requires 2A to 10A current. Linear Technology engineers show a switching regulator circuit with a 5 to 14V output.
Modern serial buses demand sophisticated level translation News & Analysis 5/26/2004 Post a comment Electronic design has changed considerably since the days when TTL and 5V CMOS were the dominant standards for logic circuits. The increasing complexity of modern electronic systems has led to lower-voltage logic, which in turn causes incompatible input and output levels for the logic families within a system. It's not unusual, for example, that a digital section operating at 1.8V must communicate with an analog subsection operating at 3.3V. In this article from Planet Analog magazine, a Maxim e
Free software download helps speed A/D converter design Product News 5/24/2004 Post a comment Analog Devices today announced the launch of
its ADIsimADC(TM) software design tool that allows systems designers
to simulate analog-to-digital converter (ADC) performance, speeding
the evaluation and design process. The software is available as a free
download from the ADI website.
Nintendo and Sony demo gaming units News & Analysis 5/24/2004 Post a comment Nintendo Co. Ltd. and Sony Computer Entertainment Inc. (SCEI) showed the first working prototypes of their new portable gaming systems at the 2004 Electronic Entertainment Exposition (E3) in Los Angeles last week.
Chip makers mull cell phones with hard drives News & Analysis 5/24/2004 Post a comment Cellular phones are poised to take yet another step in silicon integration by packing hard-disk drive controllers and read channels into their baseband processors. At least three companies are at some stage of exploring such designs, though several sources expressed doubts about when and at what pace hard disks will appear in cell phones. Rick Merritt reports.
Power management takes center stage News & Analysis 5/24/2004 Post a comment The increasing use of portable and battery-powered equipment and growing concerns over saving energy have made power management a hot-button issue at industry trade shows and conferences.
Power management poses challenges News & Analysis 5/24/2004 Post a comment As cellular phones become more complex, more power is consumed by both active and standby systems. Consequently, power-management design for portable wireless devices imposes new challenges in the areas of I/O interface, energy management and battery lifetime.
Power-management initiatives proliferate News & Analysis 5/24/2004 Post a comment Computing, communications and consumer products are fueling the race toward more integrated functions in smaller form factors, and consequently, escalating the rise in power density and power dissipation.
Platform Challenges and Opportunities for Handsets in the Emerging Wireless Lifestyle Product News 5/24/2004 Post a comment Listen in as Samsung's Ivan Greenberg opines what he thinks is happening in the wireless world. For example, over the next several years, wireless carriers will rollout new multimedia services at an unprecedented pace. These media-rich services will place new requirements on the platforms that power handsets. While the semiconductor technology to enable these new services has been available for some time on large PC platforms, commercialization of this technology for wireless handsets will under
Hard disk drive read channels " a must for perpendicular recording News & Analysis 5/20/2004 Post a comment Data recorded on magnetic disk platters follow a complex analog path from being initially 'read' to final digitization in a read channel. In this article from the May Planet Analog magazine, an Agere Systems engineer describes the read channel chain used in the coming generation of hard disk drives using perpendicular recording.
Analog switches beat bus switches in ultra-portable and consumer USB applications News & Analysis 5/20/2004 Post a comment The notebooks/PCs continued to incorporate the switches for multiplexing applications that includes overlaying graphics onto video (Picture-In-Picture), switching of MPEG data streams (after the serial-parallel conversion) and then the multiplexing of the RGB data between different monitor sources (TV, LCD, PC monitor) on video accelerator cards. In this tutorial, a Fairchild apps engineer offers insights into video switch design specs.
TI ponders best routes to next-gen handset feature integration News & Analysis 5/19/2004 Post a comment Texas Instruments Inc. has some choices to make on how to integrate new features into the cell phone. Already, TI is bringing functions such as voice-over-Internet Protocol (VoIP) and video decompression from its digital consumer operations to its cell phone division. After Bluetooth, what else do you put in? David Lammers has this report.
Epson demonstrates 40-inch OLED display News & Analysis 5/19/2004 Post a comment Seiko Epson Corp. has developed a 40-inch diagonal organic light-emitting diode (OLED) display prototype and announced that it will offer polymer-based OLED products beginning in 2007, perhaps including a 40-inch OLED TV.
4-phase controller touts benchmark performance News & Analysis 5/19/2004 Post a comment Intersil says its Endura ISL6564, for embedded computing through point-of-load applications, is the most advanced four-phase synchronous-buck PWM controller available. The company touts 6-bit VID (voltage identification) for delivering the industry's most granular output range (down to 0.525 V), and tightest voltage regulation.