Garmin GPSMap 76S: Sensory overload Teardown 9/29/2003 Post a comment Besides a GPS longitude-latitude position indicator, the GPSMAP from Garmin is an altimeter electronic compass. It has specialized magnetic sensors, and a variety of ICs from suppliers like Cirrus Logic, Fairchild, Linear Technology, and Maxim. David Carey opens the case to show what's inside.
CD-quality car radios closer to realization News & Analysis 9/29/2003 Post a comment The move toward CD-quality car radios gained momentum last week, as Kenwood Corp. delivered the first HD Radio tuner and Philips Semiconductors said it will roll out a new chip that could help cut the cost of entry into the fledgling market.
ChipCenter's Paul O'Shea does his own assessment News & Analysis 9/25/2003 Post a comment TI's two analog-to-digital converters aren't typical in any way. They are very high-resolution, 24-bit delta-sigma converters that cover just about every requirement for high-resolution de-signs. These two products provide data rates that can meet high-speed requirements and support the data rate to decrease the noise for low-speed requirements. Chipcenter's Paul O'Shea has this assessment.
CAN controller chip tackles serial communications apps News & Analysis 9/25/2003 Post a comment Microchip Technology's newest standalone controller-area network (CAN) device now offers the option to address serial communications challenges. The MCP2515 gives designers a CAN solution that provides faster data throughput and efficient data byte filtering, the company said. It also generates start-of-frame output and uses an SPI interface.
Selecting PLLs for ASIC Applications requires tradeoffs News & Analysis 9/25/2003 Post a comment PLLs, like many other analog IP macros, come with many features and specifications. Selecting the correct PLL early in the design can help the design team make tradeoffs when they are less costly, improve the integration quality of the PLL, and avoid surprises close to tapeout. From the September PA magazine folio, a True Circuits expert gives this assessment of what you should look for.
Broadcom enters analog, OpenCable tuner markets News & Analysis 9/23/2003 Post a comment Broadcom Corp. (Irvine, Calif.) significantly widened their address to the market for set-top box and TV electronics today with the introduction of an analog cable tuner. The company has a couple of years experience with tuners designed for QAM cable systems (where a good QAM system may require -82 dBC phase noise and -52 dBC distortion), but the requirements for the CableLabs Open Cable specification are considerably more stringent. Ron Wilson has this report.
2003 semi outlook brightens a bit News & Analysis 9/17/2003 Post a comment The market research firm iSupply Corp. on Tuesday tweaked its outlook for 2003 semiconductor sales and revealed vendor rankings for the first half of the year, with newly formed Renesas Technology coming in as the third-largest chip maker in the world.
Operating System Wars: Coming to a Power IC Near You News & Analysis 9/16/2003 Post a comment The advent of Digitally-Controlled Power (DCP) in electronic equipment promises to bring the flexibility of software programmability to the traditionally hard-wired world of analog power control ICs and subsystems. However, the ascendance of DCP also could spur a battle over power Operating Systems reminiscent of the market fight between Microsoft Windows and Apple's Mac OS. iSuppli analyst Gary Vick has these insights.
Digital audio processing in package deal News & Analysis 9/15/2003 Post a comment For engineers designing digital audio systems, choosing the right audio codec isn't always a straightforward exercise. A sampling of different audio technologies-MP3, Dolby AC-3, MPEG-2 AAC, MPEG-4 AAC, DTS and others-shows how tough choosing one standard can be. Anthony Cataldo reports on Tensila's efforts to implement audio decode in software.
Chip makers looks for new ways to take PC's temperature News & Analysis 9/15/2003 Post a comment As processors get hotter and the desktop systems they go into get smaller and more complex, some engineers believe it's time for a new way to track the PC's internals. National Semiconductor has had a head start in this area. Rick Merritt has preview of what they'll show at the Intel Developers' Forum.
Receiver IC replaces discretes Product News 9/11/2003 Post a comment Micrel Semiconductor's MICRF008 RF receiver IC has been designed as a low-cost alternative to discrete super-regenerative receivers and one that eliminates the need for production tuning.
Dual-gate driver sinks 5 amps or delivers 3 Product News 9/11/2003 Post a comment National Semiconductor says its LM5110 dual-gate-driver chip delivers 3 amps or sinks 5 amps peak current, the highest output yet available for n-channel power MOSFETs in switch mode and low-threshold synchronous rectifiers, solenoid and motor drivers and power level shifters.
Getting 12-bits of Resolution out of your 10-bit A/D - Part 2: Oversampling News & Analysis 9/10/2003 Post a comment In Part 1, Arrow's Bob Fugerer discussed increasing an A/D's resolution for near DC signals. In Part 2, he considers and oversampling example: Monitoring a 60Hz sine-wave with better than 70db of dynamic range, or 12-bit resolution. The minimum sampling rate is set at 500Hz since there is information at 120Hz and 180Hz that could also be of interest. To do this, we need to develop a new moving average for the effective number of bits (ENOB) that includes both signal bandwidth and oversampling.
Programmable Logic Devices offer co processor muscle for high bandwidth image processing " Part 1 News & Analysis 9/10/2003 Post a comment In medical imaging applications, such as Computed Tomography and Magnetic Resonance Imaging, the input data is not a stream of successive bytes, but rather it is a large data block (an image) residing in memory or on disk. The task of the image processing chain is typically to tile the image into sub-blocks, perform a series of linear algebraic transforms on those blocks, and place the resultant data back on the disk. In this two-part series, an Altera engineers offers insights on using programm
Programmable Logic Devices offer co processor muscle for high bandwidth image processing " Part 2 News & Analysis 9/9/2003 Post a comment In medical imaging applications, such as Computed Tomography and Magnetic Resonance Imaging, the input data is not a stream of successive bytes, but rather it is a large data block (an image) residing in memory or on disk. The task of the image processing chain is typically to tile the image into sub-blocks, perform a series of linear algebraic transforms on those blocks, and place the resultant data back on the disk. In the second part of this series, an Altera engineers offers on configuring a
QualCore gains analog IP and designers in LEDA acquisition News & Analysis 9/9/2003 Post a comment Digital design services and IP company QualCore Logic Inc. has acquired analog and mixed-signal design core vendor LEDA Systems Inc. (Plano, Texas) for an undisclosed amount. Mahendra Jain, president of QualCore Logic, was excited. Mike Santarini was there to catch his enthusiasm.
Wireless, consumer lift ON Semi's Q3 sales guidance News & Analysis 9/9/2003 Post a comment A pathway back? ON Semiconductor, a vendor of discrete small signal and power semiconductor components, has raised its guidance for the third quarter of 2003 from flat to an increase of 1 to 2 percent compared with the second quarter of 2003, according to president and CEO Keith Jackson.
Downconverter aims at satellite set-tops Product News 9/4/2003 Post a comment Intersil says its ISL6405 dual-output low-noise block (LNB) downconverter supply and control voltage regulator IC can save board space, parts count and cost for satellite set-top-box manufacturers.
Blog Doing Math in FPGAs Tom Burke 23 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 ...