286 results found for Design View / Design Solution, displaying items 1 - 20
October 9, 2008 Get The MOST Out Of Your Automotive Communications
T he clamor for more digital connectivity in vehicles has car designers scrambling to implement systems that efficiently distribute audio, video, and other content. These requirements have led to the design of a future-proof system and networking architecture that can cope with the different development time frames in the consumer and the automotive worlds. While existing implementations focused on audio, Media Oriented Systems Transport (MOST) now ...
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Wolfgang Bott
, et al.
October 9, 2008 Use ZigBee For Cost-Effective WPAN Sensing And Control Solutions
Wireless personal-area networks (WPANs) are exceptionally useful for sensing, monitoring, and control applications. Cost-effective WPANs have the unique potential to implement wireless connectivity in many end products where this functionality wasn’t considered previously. A thorough, fact-based, logical, and organized evaluation of key WPAN design factors can closely manage system financial objectives, increasing end product value with a positive...
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Pattye Brown
October 2, 2008 Filter Trims Ultra-Precision Voltage Reference
VOLTAGE REFERENCES GENERATE WIDEBAND noise spectrums. For most semiconductor devices, this spectrum usually has a wideband “white noise” component with relatively constant power density versus frequency, and a “pink noise” or “1/f noise” component that grows with the inverse of frequency.1,2 The pink noise component rises up from the relatively flat white noise level at a point somewhere between a few hundred hertz and a kilohertz, and it increases 3 dB ...
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Alfredo Saab
, et al.
September 25, 2008 UWB In The 6- To 10-GHz Spectrum Presents Opportunities And Challenges
Ultra-Wideband (UWB) radio, originally blessed by the FCC in 2002, has since been implemented in several different forms. This wide-bandwidth wireless technology uses low power to transmit highspeed data to 480 Mbits/s over short distances in the 3.1- to 10.6-GHz range. The most common implementation uses the WiMedia Allianceâ??s Multiband Orthogonal Frequency- Division Multiplexing (MB-OFDM) standard. Commercial chips and products have been available for...
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Jim Lansford
September 11, 2008 Interface High-Performance Op Amps With ADCs
The source that drives high-resolution analog-to-digital converters (ADCs) sees a high-frequency ac load and a dc load of a few hundred ohms or more. Thus, a high-performance op amp with high input impedance of a few megohms and low output impedance would be an ideal choice as an input ADC driver. The ADC driver acts as a buffer and a low-pass filter to reduce overall system noise. As signals travel through the traces of a printed-circuit board (PCB) and long cables, system noise...
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Maithil Pachchigar
August 28, 2008 Eye-Diagram Analysis Speeds DDR SDRAM Validation
Double-data-rate synchronous dynamic random access memory (DDR SDRAM) physical-layer testing is a crucial step in making sure devices comply with the JEDEC specification. The ultimate goal is to guarantee interoperability when different memory devices are used together and that they work when powered up. Fundamentally, interoperability begins at the physical layer. For a DDR memory interface, the responsibility of good physical-layer performance falls at...
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Min Jie Chong
August 14, 2008 Build A Debug And Trace Systems For Multicore SoCs
Embedded designers put microprocessors in everyday products like cars, phones, cameras, TVs, music players, and printers, as well as the communications infrastructure, which the general public doesn’t get to see. They know how important it is for their products to work—and work preferably better than their competitors’ products. But the systems-on-a-chip (SoC) behind them continue to grow in complexity, making that simple goal harder to achieve, ...
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William Orme
August 14, 2008 An Example Of Broken Security
As DVD popularity grew in the 1990s, the Content Scramble System (CSS), a digital rights management scheme, was implemented within the DVD format for protecting DVD media content from piracy. The CSS system was designed to prevent the copying of material via encryption. DVD content, including extra features and menus, may be encrypted with CSS at the manufacturing plant when the disks are created. DVD players then decrypt the...
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Craig Rawlings
August 14, 2008 Protect Storage Solutions Against Sophisticated Attacks
With the trend toward greater global competition, companies are increasingly setting up manufacturing facilities in countries with historically weak legal protections for intellectual property (IP). Thus, there’s a growing demand among system designers for enhanced physical-layer security to protect sensitive information stored in silicon. Even the most sophisticated lock in the world offers no protection if its key is easy to find. This principle applies equally...
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Craig Rawlings
July 24, 2008 Floorplanning A Power Delivery Network With Spice
Greater system complexity and ever-higher clock speeds continue to push IC power consumption to the limit. And though every generation escalates the demand on IC current, voltage levels drop due to steadily declining feature sizes on the silicon. Those lower voltage levels cause the power-supply noise margin (typically 5% from nominal) to shrink across the chips’ power-supply terminals. A noise level of 250 mV might be acceptable for a 5-V power...
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Jitesh Shah
July 10, 2008 Technology Options And Issues For FPGAs
The five mainstream FPGA vendors—Actel, Altera, Lattice Semiconductor, QuickLogic, and Xilinx—have a combined market share of approximately 98%. The remaining percentage points account for a few specialty suppliers that offer FPGA-like capabilities. All of these companies are fabless operations and rely on wafer foundries in Taiwan, Japan, Singapore, or Germany to produce their wafers. As a consequence, they only have access to the technologies...
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Bernhard Linke
July 10, 2008 Protect Your FPGA Against Piracy
Over the past two decades, the field-programmable gate array (FPGA) has transitioned from a prototyping tool to a flexible production solution in both consumer and industrial applications. With FPGA logic complexity increasing from a few thousand gates to millions of gates, the devices are able to hold more of the key functions (intellectual property) of a system. Today, designers can select FPGAs that employ various technologies to hold the configuration...
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Bernhard Linke
July 2, 2008
Smart Optics Push Camera Phones Out Of The “Dark” Ages
Since the introduction of the camera phone in 2001, having a camera in a cell phone has transitioned from being an added feature to a standard item. Today, more than 80% of cell phones have at least one camera. Camera-enabled phones offer the convenience of having a camera that’s permanently on and, quite literally, “on-hand” for every occasion.
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Giles Humpston
, et al.
June 26, 2008 Add Modular Plug-In Functionality To Any Embedded Design
Utilizing modularity in an embedded design opens up a number of new possibilities when compared to standard embedded applications. It enables the design of compact form-factor devices, without sacrificing functionality. Modularized embedded designs can be designed economically, because they can be tailored to the application—avoiding unnecessary functionality and cost. They’re also production-friendly, since they open up new diagnostic possibilities without...
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Brant Ivey
June 12, 2008 A Signaling Gateway Can Stand Alone
The signaling gateway bridges next-generation IP and traditional packet-switched telephony networks (PSTNs) that handle, for example, the signals for establishing, controlling, and billing calls. Gateway design calls for the blending of IP-based protocols, conventional switched-circuit protocols, operating systems, management, and high-reliability hardware system design. MicroTCA, AdvancedMC hardware, and offthe- shelf software can provide building blocks to develop ...
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Stuart Jamieson
, et al.
June 10, 2008
Correct-By-Construction Layout Generation And Modification
Physical design verification software typically identifies faults in physical layouts by finding design-rule-check (DRC) violations and layout-versus-schematic (LVS) mismatches after layout is complete. So-called “correct-by-construction” layout generation is a method for generating and modifying polygonal features during the layout construction process so that the layout satisfies both design-rule constraints and connectivity requirements.
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Arya Raychaudhuri
June 10, 2008
About Polygon Processing Engines
Correct-by-construction polygon processing capabilities, which together are commonly called a polygon processing engine (PPE), enable a physical designer to perform all forms of layout transformation in a post-stream-out GDS database.
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Arya Raychaudhuri
May 22, 2008 Build A Real-Time Flash GUI For Embedded Network Devices
A critical concern for any embedded device is the user interface. Embedded network devices hold a tremendous advantage for creating an intuitive user interface by using a Web browser. Traditionally, this has been accomplished by using an embedded Web server on the embedded device and creating Web pages written in Hypertext Markup Language (HTML). HTML is very easy to understand and implement for static Web pages, but it’s a very poor option for rapidly changing ...
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Chris Uribe
May 8, 2008 Designing For High Speed In Current-To-Voltage Conversion
Communications channels used to be a challenging exercise in pure analog design. Today, modulation occurs in the digital domain in many systems. But the transmitted signal is analog, so there’s always a conversion. For any communications system, choices for the digital- to-analog converter (DAC) and its current-to-voltageconverting op amp depend on the required bandwidth. As DACs and op amps get faster, they move closer to the transmitting...
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John Ardizzoni
April 24, 2008 Bridge Architecture Solves Performance, Design, Cost Problems In New Portables
Interconnecting peripherals and mass storage to embedded processors has always been a challenge, but now it’s an even more critical part of designing portable devices. Designers must solve numerous problems, such as power consumption, data speed, and configuration flexibility, while minimizing parts count and cost. One solution that bears consideration is the West Bridge, a fast interface solution that can simplify many embedded portable designs. The...
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Danny Tseng
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