Next downturn not far away, analyst says News & Analysis 3/17/2004 Post a comment The semiconductor industry's return to profitability probably will be short-lived, as a coming slowdown in consumer and IT upgrade spending are conspiring with capacity additions to create another recession in 2005, according to Semico analyst Jim Feldhan. From Phoenix, Brian Fuller reports.
Loop design sometimes compensates for lower-quality switchers Blog 3/16/2004 Post a comment Sanjaya Maniktala is back with a new installment of his popular power supply design column. The question he asks is how to make up for the erratic quality of the 3842 and 3844 switching power supply controllers now on the market? An adjustment of the RC components in the hysterysis loop allowed a power supply company to safely utilize the batch lot of jittery components they were stuck with - some 50,000 of them.
The wonderful world of wireless... la... la... la... Blog 3/16/2004 Post a comment In conjunction with the recent Wireless Systems Design Conference, Steve Ohr interviewed keynoter Henry Samueli of Broadcom. CMOS integration will pave the way for "wireless everywhere" " a virtual media console in your pocket, Dr. Samueli had said. While some people may not want all the wireless advertising this will enable, Ohr's blog does identify some applications for RF communications technology we shouldn't take for granted.
Easy on the ears audio amplifiers fade-in/fade-out quietly News & Analysis 3/10/2004 Post a comment National Semi's newest audio amplifiers feature quiet fade-in/fade-out mute mode circuitry that gradually brings the sound up or down. These "easy on the ears" transitions enhance the listening experience in compact stereos, high-definition televisions (HDTVs), and 5.1 surround sound systems.
Backplane design moves to center stage News & Analysis 3/10/2004 Post a comment Switched serial interconnects have placed substantial performance demands on backplane design. The open-specification organizations VMEbus International Trade Association (VITA) and PCI Industrial Computing Manufacturers Group (PICMG) are offering new higher-speed backplane architectures; they plan to handle faster applications by using switched-fabric backplane technologies. But 3.125- and 6.25-Gbits/s signaling requires backplane designers to adopt new design methodologies and choose between n
Easy on the ears audio amplifiers fade-in/fade-out quietly Product News 3/10/2004 Post a comment National Semi's newest audio amplifiers feature quiet fade-in/fade-out mute mode circuitry that gradually brings the sound up or down. These "easy on the ears" transitions enhance the listening experience in compact stereos, high-definition televisions (HDTVs), and 5.1 surround sound systems.
Power-managing IC gets by charger-fed designs News & Analysis 3/8/2004 Post a comment Linear Technology's LTC3455, designed as a complete power-management solution for handheld computers, digital cameras and MP3 players, features the company's PowerPath controller to enable a seamless transition between the battery, USB source or external supply that powers it. It thus does away with the significant power losses found in charger-fed designs. The multipurpose device, which contains two synchronous step-down DC/DC converters, USB power controller, thermally regulated lithium-ion ba
Control plane bridge chips span to SPI 4.2 News & Analysis 3/8/2004 Post a comment Security processor vendor Cavium has tapped into its I/O connectivity and packet-processing experience to craft a device family that provides transparent bridging between an SPI 4.2 device and existing PCI-X, PCI and SPI 3 interfaces-or that bridges an OEM's proprietary SPI 4.2 interface to a standard SPI 4.2 link-on network processors and other dataplane-processing products.
Chip design knights ride to slay power dragon News & Analysis 3/8/2004 Post a comment Chip designers are wielding new weapons in the struggle to control power leakage. Transistors with more than one threshold voltage, chips with multiple voltage "islands" and substrate-biasing techniques are among the schemes being brought to bear to quell what an IBM manager called "clearly the most pressing problem facing our industry, one that threatens our very lifeblood." David Lammers has this report.
Codec impasse holds up designs News & Analysis 3/8/2004 Post a comment The failure of broadcasters, content owners and equipment makers to agree on an open standard and licensing terms for advanced video compression formats has brought development of next-generation digital consumer products to a virtual standstill. Devices at stake include high-definition DVD systems, cellular handsets, portable devices with "TV on the move" features and a new generation of cable and satellite set-tops.
MIPS to focus on digital camera market News & Analysis 3/8/2004 Post a comment In hopes of driving MIPS RISC cores deeper in a digital imaging market, MIPS Technologies, Inc. on Monday (March 8) disclosed a growing list of camera companies now shipping MIPS-based digital still and video camera models. The list includes Canon, Fujifilm, JVC, Pentax and Samsung. From Paris, Junko Yoshida reports.
Robotic vehicles vie for $1 million purse in Darpa race News & Analysis 3/8/2004 Post a comment Ground-based transportation will take a new turn in mid-March as 20 driverless vehicles " described as supercomputers on wheels " race across the southern California desert in a million-dollar, winner-take-all competition sponsored by the Defense Advanced Research Projects Agency. Chuck Murray has the details.
Sanyo to ship smallest CCD module News & Analysis 3/5/2004 Post a comment In a race to shrink images sensors for use in camera phone applications, Sanyo Electric Co. Ltd. said it has developed a megapixel CCD image sensor with the industry's smallest pixels, the company claimed. Yoshiko Hara's story differs sharply in mood and content from the filed by xxxx suggesting Rockwell is looking for ways out of the CMOS image sensor business. The question is which will pay off sooner?
Berlin trial site for mobile TV reception News & Analysis 3/5/2004 Post a comment Driven to extend its standard-setting activities into such new markets such as mobile and IP networks, the Digital Video Broadcast Project used the DVB World 2004 conference to promote its just-completed DVB-Handheld (DVB-H) standard. From Dublin, EE Times' Junko Yoshida and iconoclast David Benjamin filed these reports.
Metamaterial plumbs terahertz region Design How-To 3/5/2004 Post a comment Metamaterial experts have bridged the terahertz-gap by demonstrating a magnetic sensor based on split-ring resonators. SRRs function as artificial atoms in a metamaterial, but are actually constructed from concentric planar copper rings. By shrinking a microwave (millimeter wavelengths) SRR from 5 millimeters to 50 microns, researchers said Friday (March 5)they demonstrated a magnetic response that bridges the terahertz gap (micron wavelengths), thereby opening the door to solid-state sensors th
DVB-H inspires visions of 'TV in your pocket' News & Analysis 3/5/2004 Post a comment With the focus of the Digital Video Broadcasting project's annual conference here this week on the convergence of broadcasting with mobile communications, the theme repeated in session after session might well have boiled down to: "TV in your pocket, money from your pocket."
Power-managing IC gets by charger-fed designs Product News 3/4/2004 Post a comment Linear Technology's LTC3455, designed as a complete power-management solution for handheld computers, digital cameras and MP3 players, features the company's PowerPath controller to enable a seamless transition between the battery, USB source or external supply that powers it. It thus does away with the significant power losses found in charger-fed designs. The multipurpose device, which contains two synchronous step-down DC/DC converters, USB power controller, thermally regulated lithium-ion ba
January chip sales down 3.0%, says SIA News & Analysis 3/3/2004 Post a comment Is the glass half-empty? Or half-full? The Semiconductor Industry Association said global chip sales totaled $15.55 billion in January, down 3 percent from $16.03 billion in December. Out of the other side of its mouth, the SIA also reaffirmed its forecast for the chip market to grow by 19.4 percent in 2004. Silicon Strategies Peter Clarke filed this report.
High-speed line cards reemerge News & Analysis 3/3/2004 Post a comment When the telecommunications sector crashed more than three years ago, development of 10- and 40-Gbit/second line cards was dropped in favor of slower designs that provided a migration path from existing OC-3 and OC-12 equipment to OC-48-class speeds, writes Rob Keenan in his introduction to EE Times' InFocus article section. But with OC-48 now proliferating and Gigabit Ethernet and 10-Gbit Ethernet starting to gain hold in metro markets, designers are once again building high-speed line cards th
--On the Design of Higher-order Shelf Filters " Part 3 of 3-- News & Analysis 3/2/2004 Post a comment The design of higher-order shelf filters requires use of uncommon mathematics and numerical techniques. This paper streamlines the approach while exploiting the power of Matlab to make the design of these filters more accessible. In part 1, TI's Rusty Allred the theory behind a MatLab implementation. In part 2, he described some practical implementations " particularly the filter coefficients. Here, in the "appendix," Rusty provides the MatLab code. Have fun.
Blog Make a Frequency Plan Tom Burke 17 comments When designing a printed circuit board, you should develop a frequency plan, something that can be easily overlooked. A frequency plan should be one of your first steps ...