CONTENTS July 2007
 
Cover Story 
Measuring nanoamperes
By Paul Rako, Technical Editor, EDN
Measuring low currents can be tricky. Clever analog-design techniques and the right parts and equipment can help.
 
Design Feature 
Choose capacitor types to optimize PC sound quality
By Kymberly Schmidt, Maxim Integrated Products
A key challenge to designers of audio subsystems that must conform to Windows Vista requirements may be choosing coupling capacitors. These devices capacitance varies with the voltage across them and introduces audio distortion.
 
Special Report 
Using S-parameter data effectively
By Wilfredo Rivas-Torres, Applications Engineer, Agilent Technologies
 
Pulse 
TIs highest performing floating-point DSP
Alteras 65nm low-cost FPGA
Tiny, ultra-low-noise LDOs reduce total solution size
Infineons DAvE Drive reduces software development time for 3-phase drives
First WiMAX manufacturing test software for Sequans Mobile WiMAX chipsets
Industrys First 100V current-mode buck controller
2.5 7,200 RPM 3.0Gb/s serial ATA hard disk drive
Adaptor shows all LXI WTB channels on single display
Comprehensive WiMAX test strategy complements 3G LTE strategy
Industrys smallest 0603(0201) Zener and Schottky diodes
Smallest, thinnest 3-axis electronic compass
Wideband tuner breaks 160Mbps barrier in cable modems
 
EDN Asia.Comment 
Post-humanism and trans-humanism through nanotechnology
by Kirtimaya Varma
 
Interview 
Our tools enable professionals to bring out their domain expertise
by Robin Lange, Managing Editor, EDN Asia
Eric Starkloff, Director of Product Marketing for Test at National Instruments, recently spoke with EDN Asia on the companys continuing development of virtual instrumentation to meet the increasing demands for highly intelligent and reliable products. Excerpts:
 
Design Ideas 
Current mirror improves PWM regulators performance
Grant Smith, National Semiconductor, Phoenix, AZ; Edited by Brad Thompson and Fran Granville, EDN
Low-cost current monitor tracks high dc currents
Susanne Nell, Breitenfurt, Austria; Edited by Brad Thompson and Fran Granville, EDN
Digital-I/O circuit adapts to many interface voltages
Steve Hageman, Windsor, CA; Edited by Brad Thompson and Fran Granville, EDN
 
New Products 
Graphics card features 320Mbytes of high-speed GDDR3 frame-buffer memory
Embedded-networking module enables drop-in network connectivity
User-configurable FPGA PMC modules with conduction cooling
RGB/DVI/Video converter boards for TFT LCDs
WiFi/DAB/FM platform accesses over 16,000 audio services
GPS RADIONOVA RF antenna module
Small modern module features RJ-11 connector
DLP-245SY-G USB redesigned to high-performance (50MIPs) MUC module
Lithium charger with auto USB & wall adapter power selection
Three switch mode power supplies
Low cost, DIN rail ac/dc power supplies
Medical desktop 100 to 120W switching power supplies
Miniature open-frame ac/dc switching supplies
50W external ac-dc power adapter with triple output
Protect motors and transformers from current, temperature damage
Advanced battery technology
MR option allows recording of RADAT signals
UWB data-recording system allows real-time recording/playback of analog data
Advanced exerciser option for UWB test platform
11 more PXI RF switches for communications test
Accelerometer miniaturizes motion sensing
Complete solution for UTRAN performance
MBMS test scenario for CRTU-W protocol tester
FET switches with low video leakage, high isolation
Comprehensive IDE for DSP development
34V, 2A output, 2.8MHz step-down dc/dc converter
Customizable battery fuel gauge for 1- or 2-cell apps
Power management IC enables simultaneous charging and system operation
Atmel doubles on-chip Flash density on ARM7-powered MCUs
Automotive-grade 32Mbit NOR Flash memory
Dual density bidirectional optical transceivers
32-bit MCUs for high-performance home apps
TIs 1394 technology used for HANA home entertainment networking products
Chip combines power management, charging control for 1 cell Li+ batteries
Magnetic rotary encoder IC for harsh automotive and industry apps
10Gbps optical transceiver with 40km transmission distance
Single-chip demodulator/decoder reduces costs for set-top-box manufacturers
Single-cell Li-Ion/Li-Polymer chargers in SOT-23 packages
QMLV-qualified precision amplifier for satellite apps
Extended reach XFP transceiver
 
Global Designer 
Nanoelectronic switch harnesses silver whiskers
By Matthew Miller, Editor in Chief, EDN
Big advances come to tiny optical components
By Matthew Miller, EDN
 
Prying Eyes 
Exploring the foundation under smartphones
MCU/MPU Finder Powered by RENESAS
 
WEBCASTS
 
KNOWLEDGE CENTER
Panasonic Key Devices Guide 2008:
 
Fairchild Semiconductor :
 
 
FEATURED CHANNEL 
Processors & Tools
 
 
 
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