Hot Topic:
Military/defense

EDN

• Anechoic chambers rise from the pits
  
  Author: By Martin Rowe, Senior Technical Editor, Test & Measurement World | Date: Jan 7, 2010
  ...they must comply with commercial or with military standards. Chambers exclusively for emissions tests...frequencies from 1 GHz to 6 GHz and up to 18 GHz. Military standards, such as MIL-STD ( military standard) 461 call for conducted tests...
• 1G-sample/sec, 12-bit ADC works in base stations and instrumentation
  
  Author: By Paul Rako, Technical Editor | Date: Nov 10, 2009
  ...stations and instrumentation By Paul Rako, Technical Editor -- EDN, 11/10/2009 Targeting applications in wireless-communications, defense, and test-and-measurement equipment, Texas Instruments recently announced the 12-bit...
• 2007 EDN DSP Directory: NeuroMatrix NM6403
  
  2007 EDN DSP Directory By Robert Cravotta, Technical Editor A comprehensive listing of digital-signal-processing resources, including software-programmable processors, programmable fabrics, IP (intellectual-property) blocks, and digital-signal controllers.
• 3.3V mixer downconverts RF with good linearity
  
  Author: By Paul Rako, Technical Editor | Date: Oct 28, 2009
  ...systems. You can also use it for backhaul-wireless service between base stations and public-safety, and military-communications systems. The LTC5541 operates at a -40 to +85°C junction temperature; comes in a 5×5-mm, 20-pin QFN...
• Precision Mixed Signal - 2007 EDN Microprocessor/Microcontroller Directory - Details on hundreds of
  
  2007 EDN Microprocessor Directory: Different strokes By Robert Cravotta, Technical Editor Our 34th Annual Microprocessor and Microcontroller Directory presents you with a palette of processing options and development tools for your project.
• Burn-in, burn-in: dc inferno
  
  Author: By Paul Breed, NetBurner Inc | Date: Dec 15, 2009
  Tales From The Cube: Missing information on an optocoupler's data sheet cuts short a much-needed vacation for one engineer.
• 2008 EDN DSP Directory: CoreFIR
  
  Actel's CoreFIR is a filter generator that uses a distributed arithmetic implementation methodology to create FPGA-based low- and high-pass digital filters for general signal filtering, detection, and analysis functions.
• Seeing red over dead LEDs
  
  Author: By Pat Sheets, Aeroflex Test Solutions | Date: Mar 18, 2010
  ...front-panel design to a major supplier for a new military-product contract. The design comprised a standard keypad with...we were up against a production schedule on a military contract with significant penalties, I chose to repair...
• Team hardens SiGe circuits
  
  Author: By Ron Wilson, Executive Editor | Date: Nov 12, 2009
  Manufacturers once aimed certain process technologies at radiation-hardened designs. CMOS, for example, started out that way, when RCA (www.rca.com) developed its silicon-on-sapphire process. However, the overwhelming success of bulk-silicon CMOS processes has driven most of the alternatives into
• “Not I,” said the rat: the tale of the Little Red Hen-gineer
  
  Author: By Steve Lubs, Department of Defense | Date: Nov 12, 2009
  Tales From The Cube: It sometimes pays to shut off all the extra noise—um, information—and handle things your own way.
• Eight-function remote uses one button, no microcode
  
  Author: Jay Davis, Boeing Integrated Defense Systems, Wichita, KS; Edited by Martin Rowe and Fran Granville | Date: Dec 15, 2009
  ...remote uses one button, no microcode Simplify the operation of a remote control. Jay Davis, Boeing Integrated Defense Systems, Wichita, KS; Edited by Martin Rowe and Fran Granville -- EDN, 12/15/2009 Many people with significant...
• Taking advantage of the latest small form factor announcements, ADLINK Technology just introduced...
  
  ...requirements for many of the newer defense applications, embedded system designers are turning to VMEbus...complex, safety-critical embedded systems in military and aerospace applications. Many of these systems req... ...
• Texas Instruments announces dual 14-bit, 250-Msample/sec ADC
  
  Author: By Rick Nelson, Editor-in-Chief | Date: May 13, 2009
  ...adding that it targets communications applications, defense imaging systems, and wideband and portable test-and-measurement...to improve small-signal analysis in defense and radio-receiver applications. The device forms a part of a complete...
• Thermal design guidelines for solid-state lighting applications using LEDs
  
  Author: By Henry F. and Peter A. Villaume, Villaume Associates | Date: Sep 11, 2009
  ...temperature of the LED chip. Do not, therefore, set the allowed maximum ambient temperature higher than necessary. Military applications typically have ambient temperatures like 55°C (131°F) to 70°C (158°F). A specified limit of 50°C...
• Ramtron expands serial-FRAM line with 32-kbit device
  
  Author: By Rick Nelson, Editor-in-Chief | Date: Jun 19, 2009
  ...is a direct hardware replacement for serial EEPROM in industrial-control, metering, medical, military, gaming, and computing applications. It provides reliable data retention for 45 years when operated at 75°C, a necessary retention time...
• RF switching options: The right fit might come with a loss
  
  Author: By Rick Nelson, Editor-in-Chief | Date: Sep 17, 2009
  Manufacturers are offering SOI and MEMS alternatives to PIN-diode, GaAs, and electromechanical switches for a variety of RF applications, but you need to understand RF-switch specs before you commit to a new technology.
• Simple circuit smoothly drives stepper motors
  
  Author: Uwe Schüler, Institute of Physiology, Tübingen, Germany; Edited by Martin Rowe and Fran Granville | Date: May 28, 2009
  The circuit in this Design Idea drives low-power, unipolar stepper motors using only a shift register, a few resistors, and low-power transistors. Adding an inexpensive 4053 analog switch allows bidirectional switching.
• In the days of old, when engineers were bold
  
  Author: By Lynn Smith |
  ...processor, I took a job as chief engineer at a company that developed, manufactured, and supplied military and industrial security-monitoring systems. Job 1 was an intermittent problem in the current model that caused the watchdog timer to reset...
• Counterfeit components find new markets
  
  Author: By Rob Spiegel | Date: Apr 9, 2009
  ...directives. According to Tom Sharpe, vice president of independent components distributor SMT Corp, the military, aerospace, and medical industries are still using products containing lead. Many of these products are obsolete, and the chip manufacturers...
• No good deed goes unpunished
  
  Author: By Marvin Moss, PhD | Date: Mar 4, 2010
  Instead of a medal, one proud engineer receives a reprimand following an unauthorized simulator fix.