![]() ![]() |
||||
|
||||
[On The Wireless Front] On The Wireless Front Cheryl Ajluni June 2004
Norcross, Georgia One new featurethe Oscillator Synthesis moduleenables designers to quickly select, tune, and develop oscillators from a selection of 17 topologies. GENESYS 2004 updates the Synthesis module with two oscillator configurations. A completely new class of oscillator, the LC Hybrid, is supported. It was developed by Eagleware's founder, Randy Rhea. This oscillator features rapid startup characteristics and excellent harmonic performance. In addition, a negative conductance VCO is now available for frequencies above 200 MHz that require octave tuning. GENESYS 2004 also adds features and a host of improvements to SPECTRASYS, Eagleware's full-spectrum simulator. They include the following: an active frequency divider; new filter models that include the effects of Q; faster calculation speeds; a new error message that identifies potential stability problems in the RF architecture; and the ability to graph any sweep of a SPECTRASYS path measurement at any node in the schematic. GENESYS 2004 also includes numerous additional improvements to make the designer's job easier, such as nonlinear elements in SPICE output, seven new complex-waveform examples, additional startup options, and more. To learn more about GENESYS 2004, visit www.eagleware.com. Munich, Germany The CPS is extremely flexible due to its modular hardware/software (HW/SW). It can be upgraded and reconfigured in the field as test needs change. The advanced software allows multiple test protocols to be run on the same wafer without human intervention. The Cluster Probing System also is designed to minimize expensive clean-room space. It uses 40% less floor space than individual production probers. Each probe module can be operated in manual, semi-, or fully auto mode and removed from the cluster to be used as standalone probe systems. In addition, the system can be configured for double-sided probing. For more information on this test system, please visit www.suss.com. Sunnyvale, California The maximum current drawn from the AC adapter is programmable. This approach avoids overloading the AC adapter when supplying the load and battery charger simultaneously. It thereby reduces the cost of the AC adapter. Outputs monitor the current drawn from the AC adapter, the battery-charging current, and the presence of an AC adapter. The MAX1870A accurately charges two to four Li+-series cells at over 4-A charging current. The MAX1870A battery-charger IC from Maxim Integrated Products is now available in a space-saving, 32-pin QFN (5-x-5-mm) package. It is specified for the extended industrial temperature range (−40° to +85°C). Prices for this IC start at $3.10 (1000-up, FOB USA). For more information, go to www.maxim-ic.com. Milpitas, California This new generation of camera phones with Xenon flash lamps has several key advantages over current phones. The light output from Xenon flashes is hundreds of times that of point-source LEDs. The flash also is many times faster than LEDs. In addition, these new Xenon flash lamps operate at a color temperature close to that of natural light. The result of all this is a practical, easy-to-implement solution for high-quality photo-enabled phones. Such cameras deliver high-quality photos up to several meters from the subject, rather than the current 1- to 3-ft. limitation of LED-based camera phones. The camera-phone solution pioneered by Linear Technology involves the use of Xenon strobe flash lampsa well-established light source that has been in production for many years. The Linear Technology solution incorporates the company's patented LT3468 high-efficiency, fast photoflash capacitor charger. This device charges a high-voltage capacitor, meeting the form factor and efficiency needs of cellular phones. The small footprint and low profile of this photoflash solution allow it to be used in small-form-factor handsets, significantly improving the photo image quality. Linear Technology's LT3468 solution provides very fast and efficient charging of the Xenon flash lamp in as little as 1 sec. This rapid charging provides a fivefold improvement over conventional solutions. In addition, this scheme supports "red-eye" reduction, whereby one or more reduced-intensity flashes immediately precede the main flash. For more information, go to www.ltc.com. Camarillo, California |
|||||||||||||||
|
|
|||||||||||||||
|
[Reader Comments] On The Wireless Front |
|
|
|
|
|
Electronic Design Europe Electronic Design China EEPN Microwaves & RF Schematics ![]() Electronic Design Military Electronics Featured Vendors EE Events Free Design Resources |
|
|
Planet EE Network Home |
Contact Us |
Editorial Calendar |
Media Kit |
Headlines |
Site Feedback & Bugs Copyright © 2008 Penton Media, Inc., All rights reserved. Legal | Privacy |