357 results found for Design View / Design Solution, displaying items 1 - 20
November 16, 2009 Optimizing Measurement Accuracy
The ability to achieve level accuracy that provides meaningful measurement results depends on external leveling techniques that correct for mismatches and frequency- response variations. In most cases, a combination of static and dynamic leveling is the most effective approach. Static leveling relies on an array of usercreated calibration factors that ensure the delivery of flat power at an interface beyond the signal generator’s RF output connector. ...
—
John S. Hansen
November 16, 2009 Explore The Benefits Of High-Output Signal Generators In Your RF Test Setup
In RF testing, an essential attribute of every RF signal generator is the maximum output power it can supply to a device under test (DUT) while maintaining spectral purity and level accuracy. The ability to deliver a pure, accurate signal at +25 dBm or greater ensures improved measurement accuracy. Plus, it enables testing of extreme or unusual operating conditions. These capabilities can simplify the testing of high-power amplifiers, overcome...
—
John S. Hansen
November 5, 2009 Take Simple Steps Toward Extreme Low-Power Design
Practicing engineers are always learning and perfecting their craft. With the demand for more portable, battery-powered devices and energy harvesting on the horizon, the requirements for even lower-power designs have gotten more challenging. At first, designers wrestled with saving milliamps, then microamps. Today, it is all about saving nanoamps. As a result, designers have to elevate their thinking to another level. Extreme low-power embedded design...
—
Steven Bible
October 22, 2009 Break Through The TCP/IP Bottleneck With iWARP
T he online economy, particularly e-business, entertainment, and collaboration, continues to dramatically and rapidly increase the amount of Internet traffic to and from enterprise servers. Most of this data is going through the transmission control protocol/Internet protocol (TCP/IP) stack and Ethernet controllers. As a result, Ethernet controllers are experiencing heavy network traffic, which requires more system resources to process network packets. The...
—
Sweta Bhatt
, et al.
October 19, 2009
Setting A New Standard For Through-Silicon Via Reliability
Making vertical interconnects generally requires some form of through-silicon via (TSV) technology. TSVs are conceptually very simple to produce and many variations exist. Issues of reliability have yet to be satisfactorily solved.
—
Gilles Humpston
, et al.
October 8, 2009 Control Jitter And Interference During Clock Distribution
Several practical issues must be addressed when designing the clock tree for a system running synchronously at high speed. First is the signal integrity of the clock itself, i.e., maintaining low jitter and low distortion all the way to the receiver. Second is controlling clock interference with other parts of the system, as well as compliance with electromagnetic- interference (EMI) regulations. These issues are easy to understand, but hard to practice...
—
Lin Wu
October 1, 2009 Reap The Benefits Of Integrated Power-Limiting Controller ICs
Many cost and engineering improvements are realized by integrating the current pass element and currentsense function into a hot-plug controller integrated circuit (IC). Controlling the passelement power is the safest and fastest way to charge the load capacitance. Pass-element protection is maintained while boosting efficiency and reliability. A circuit controlling current to a load usually consists of three components—an IC...
—
Bob Kando
September 24, 2009 Deeply Embedded Devices: The Internet Of Things
T he “Internet of things” is about connecting products that create, store, and consume data via the Internet. This allows processing to provide results that people can more easily use. The basic technical requirements to enable it are vastly different from the current treadmill of mainstream Internet-connectivity technology. Mainstream connectivity strives to constantly increase bandwidth, range, and features to counter dwindling margins and prepare for...
—
Rodger Richey
, et al.
September 10, 2009 Develop Seamless Interconnection Among Multiple General-Purpose Boards
As the cost to create ASICs continues to climb, a board design featuring multiple, more generic ICs becomes attractive. But arriving at a standardized, high-speed board interconnect has proved difficult. The XMOS Link, as implemented in the XS1 family of programmable devices, can be used as a standard board interconnect for seamless connection between multiple devices to address the problem. In particular, an XMOS Link can be readily implemented in an...
—
Sam Garcia
August 27, 2009 Avoid The Pitfalls Of Inaccurate EDID
Whatever its relative merits and demerits may be, HDMI is here to stay as the audio/video (A/V) interface of the foreseeable future. As the number of consumer and professional devices using HDMI to deliver audio and HD video grows, the pressure mounts on A/V manufacturers to ensure that their devices’ Extended Display Identification Data (EDID) is accurate (Fig. 1). The idea of EDID is a powerful...
—
Thomas Kite
August 27, 2009 Blocking Out The Noise Means Selecting The Right Filter
Noise is a common and pervasive problem in electronics design and debug. At one time or another, almost every designer and debugger of electrical circuits will spend some time dealing with noise—either finding its source to fix it or reducing its impact on measurements. Noise can come from countless internal or external sources, often obscuring signals of interest. Noise can make it difficult to perform measurements on a millivolt-range signal,...
—
Randy White
August 13, 2009 Plumb The Depths Of Deep Packet Inspection
In a short time, network infrastructure bandwidth has scaled exponentially to 10 Gbits/s, with designs for next-generation Ethernet promising between 40 and 100 Gbits/s. At the same time, the complexity and breadth of applications that run over these backbones are drastically changing. Accordingly, to accommodate the ever-increasing need for network security, control, and visibility that’s required for network traffic, communications equipment needs to be...
—
Daniel Proch
, et al.
August 13, 2009 Build An Efficient 500-W Solar-Power Inverter Using IGBTs
With the global trend toward green power and affordable energy gaining momentum, applications such as home appliances, lighting, and power tools, as well as other industrial equipment and uninterruptible power systems (UPSs), are rapidly tapping the benefits of solar energy, converting the sun’s power to the desired alternating current (ac) or direct current (dc) at the required voltage. To efficiently generate the desired output voltage and...
—
Wibawa T. Chou
July 23, 2009 Formal Methodology Validates Cache-Coherence Protocol
Bugs in RTL code are problematic, but a bug in an architectural specification can be catastrophic. If the bug remains undetected until post-silicon debugging, the design process essentially starts all over again. Thus, it’s crucial to move the verification process as far forward as possible. With that motivation in mind, engineers at Sun Microsystems recently applied formal verification to an application that commercial tools have not generally...
—
Norris Ip
, et al.
July 9, 2009 Turn FPGAs Into "Key" Players In The Cryptographics Field
Many state-of-the-art embedded systems use “platform” FPGAs such as Xilinx Virtex 4/5 class devices or Altera Stratix III/IV class devices. Until recently, it wasn’t possible to deploy keyed applications in these devices, where keys are unique to each device. Although these FPGAs do have bitstream decryption keys— whether battery-backed or fuse-based—that can be chosen by the user to be unique to each device, these keys can’t be accessed from an FPGA’s...
—
Mandel Yu
June 25, 2009 Take The Guesswork Out Of Debugging
In the classic board game Battleship, an adversary arranges a fleet of tiny, plastic combat vessels on a grid that’s hidden from view. After an analogous fleet is set up on a separate grid, the objective is to guess the locations of the opponent’s boats. Likewise, the opponent’s goal is to divine the whereabouts of your miniature ships. The game proceeds with ...
—
Matthew Gordon
June 16, 2009
Use An Open Test Platform In A Standardized Core To Develop And Manage A Functional Test System
An OTP system leverages a standard core built with the components that provide the basic functionality required by any test system, and then adds the components unique to the specific test system being designed. LXI-compliant (LAN Extensions for Instrumentation) components are particularly well suited for this type of application because they’re easy to build and operate in hybrid systems.
—
Elizabeth Persico
June 11, 2009 Reduce The Small-Memory-Footprint Requirements In Wireless Sensor Networks
Products based on wireless technology have been steadily insinuating their way into our lives since the 1980s. Wireless devices such as Apple’s iPhone and Amazon’s Kindle have become common items in many of today’s households. Similarly, within the industrial market segment, the use of small wireless sensor devices is becoming more widespread within office buildings and on factory floors. Equipment manufacturers are incorporating and connecting...
—
Derrick Lattibeaudiere
prev. page
[1]
