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LCDs Enjoy Flexible Power-Up Sequencing For many systems, liquid-crystal displays (LCDs) are a large part of the bill of materials (BOM). In some cases, more than 80% of the entire system cost is that of the LCD panel (e.g., high-definition televisions or HDTVs). LCDs also are a major factor in a consumer's perceived quality perspective. If the LCD begins to fail, the end customer will associate the system and its manufacturer with poor quality. Clearly, safeguarding the LCD component is a critical aspect of these system... — Bart Borosky , et al. March 2005 [New Products] Radio-Antenna Modules Slash Cost And Complexity Adding wireless connectivity to handsets, laptop PCs, and other wireless consumer devices can be a costly and difficult endeavor. Antenova's Radionova modules present a smoother path to the integration of wireless capabilities by incorporating the company's High Dielectric Antenna (HDA) technology. This technology puts all of the key RF components into a single module The balanced antenna is highly resistant to detuning. As a result, the same Radionova module can be used across... — Staff March 2005 [New Products] Filters Guard Handsets From EMI And ESD Effects Demand is surging for advanced multimedia capabilities in wireless handsets, and that means new design challenges on the electromagnetic-interference (EMI) front. Clamshell phones pose a particularly sticky challenge in terms of avoiding EMI woes. Data rates from the processor to the phones' high-resolution displays have risen dramatically. The result is even more pernicious EMI risks. Aimed squarely at solving EMI and electrostatic-discharge (ESD) issues, the Praetorian ASIP... — Staff February 2005 [Column] Microwave Absorbers Help Wi-Fi Perform Wi-Fi is truly ushering in a communications revolution. This technology is the first of its kind in an age when thousands of people are unplugging their phone jacks. Now, the wireless Internet is beginning to fully encompass the globe without phone lines and buried cable. During the past year, manufacturers of materials that control electromagnetic interference have been providing supporting technology to the network-infrastructure companies that manufacture indoor/outdoor Wi-Fi switches. ... — James Delprete February 2005 [New Products] EMI Filter Arrays Stave Off Electrostatic Discharge A series of four electromagnetic-interference (EMI) filter arrays vows to provide electrostatic-discharge (ESD) protection in thin DFN packages. These four-channel, six-channel, and eight-channel filters were specifically designed for the high-speed data interfaces in mobile phones. Compared to traditional chip-scale packages, they provide high performance and reliability in a drop-in replacement footprint (1.35 × 3 mm). All of the filters come in a TDFN package to provide... — Staff February 2005 [New Products] Oscillator Delivers High Stability In Small Package In a crystal oscillator, ambient temperature variation is one of the main causes of frequency variation. To overcome such variation, C-MAC's TC-OCXOs use a hybrid combination of limited temperature control by use of an oven. They further reduce the remaining frequency error through the use of the company's Pluto temperature-compensation ASIC. The company's new series of temperature-compensated, oven-controlled crystal oscillators (TC-OCXOs) also is designed to deliver the high stability of... — Staff December 2004 [Cover Story] Amplifiers Drive Broad Applications General-purpose amplifiers (GPAs) can be thought of as the "RF glue" in wireless systems. Although they're simple in design, these amplifiers must boost RF signals to acceptable levels. They also must overcome the losses that are accrued by a... — Jack Browne November 2004 [Design Application] Automatic Antenna Tuning Saves Power In recent years, the world has welcomed an increasing number of short-range, license-free wireless applications that operate in the Industrial Scientific Medical (ISM) band. Among these applications are keyless entry, tire-pressure monitoring, door... — Ferenc Mernyei October 2004 [Product Features] Tool Helps Designers Find Interface Parasitics As nanometer design projects become more commonplace, the side effects of shrinking process geometries also will grow familiar. The emergence of significant interconnect parasitic elements is chief among these effects—especially for 90-nm... — John Blyler October 2004 [New Products] Switch Frees Boards Of LED And Light Pipe Panel building, instrumentation, and many other applications are tricky to implement. The problem is the risk of mechanical misalignment. To help engineers avoid such misalignment, the right-angle C&K ELUM illuminated pushbutton switch from ITT... — Nancy Friedrich October 2004 [New Products] Graphical-User-Interface Module Eases Integration For embedded mobile system developers, creating user interfaces usually takes time and energy that would have been better spent on areas like product differentiation. Amulet Technologies hopes to simplify this step with its new compact display... — Nancy Friedrich September 2004 [News] Sensors Save Industrial Energy The industrial sector may not be the flashiest or most talked about wireless application area. Yet it is experiencing a high rate of growth and development. Thanks to recent support from the U.S. government, wireless' potential for industry should... — Nancy Friedrich September 2004 [Design Application] Quality Devices Deserve Good Sound As audio quality becomes increasingly important in electronic systems, many more designers must become skilled in the "art" of analog and mixed-signal design. Some designers find this trend intimidating. In truth, though, an amplifier is still just... — Julian Hayes September 2004 [Product Features] ZigBee Platform Readies Wireless-Based Designs Sometimes, a little can go a long way. For instance, take the case of ZigBee—a set of networking, security, and application software protocols based on the IEEE 802.15.4 low-data-rate wireless standard. Compared to other wireless networks, such... — John Blyler September 2004 [New Products] Technology Helps Shrink Component Height Recently, Murata Electronics introduced the Planar High-density Passive Device (PHPD) technology for low-height components. This technology can be applied to many components, such as filters, diplexers, and mode transformers. The first... — Staff July/August 2004 [New Products] USB 1.1 Switch Offers Low Power And Bandwidth Mobile wireless devices are popping up everywhere. Such devices rely on the high-speed broadband connectivity provided by Wi-Fi and cellular networks. In addition, these devices often need to communicate within a wireless personal-area network.... — Staff July/August 2004 [New Products] Battery Charger Keeps Circuits From Overheating Recharging is a necessity for all portable wireless devices. When such devices are recharging, however, they have a tendency to overheat. Linear Technology Corp. wants to address this problem with the introduction of the LTC4059A. This device is a... — Staff June 2004 [News] DFS Series Beats Cost Constraints At this month's IEEE International Microwave Symposium (www.ims2004.org) in Dallas, Texas, attendees witnessed the latest in digital-frequency synthesizers (DFSs): the Low-Cost DFS Series Synthesizer from Elcom Technologies, Inc. (www.elcom-tech.com).... — Nancy Friedrich June 2004 [Design Application] Reduce The "Buzz" In Cellular Phones Harsh and noisy environments are commonplace for cell phones, personal digital assistants (PDAs), and other portable communications equipment. This fact has led to the development of new audio power amplifiers (PAs). These PAs offer fully differential... — Nicholas Holland , et al. June 2004 [New Products] Low-Power FPGAs Put SRAM Into Small Package To meet consumer requirements for feature-rich, small, and lightweight mobile wireless devices, chip vendors have had to increase the density of their packages. One example is the low-power, high-density programmable-logic devices that were recently... — John Blyler  prev. page
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