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EDN Europe

50 YEARS OF EDN

50 YEARS OF SEMICONDUCTOR INNOVATION, 50 YEARS IN THE MOST EXCITING INDUSTRY, 50 YEARS OF DESIGN INGENUITY, 50 YEARS OF INCREASINGLY COMPELLING PRODUCTS

Time-domain reflectometer measures paths for serial data to 12.5 Gbps

- by Graham Prophet

3G soft modem chip for HSDPA data cards

- by Graham Prophet

Freescale boosts QUICC speed, supports ZigBee 2006

- by Graham Prophet

1-MHz gainselectable amps compensate for bandwidth roll-off

- by Paul Rako

Gold-plated performance from stereoamplifier- output driver

- by Graham Prophet

Sigma-delta ADC IP block offers programmable resolution

- by Graham Prophet

IrDA protocol simplifed for point-and-see picture transfer

- by Graham Prophet

Low-power, C-code-optimised 32-bit µP IP core

- by Graham Prophet

Mixed-signal module boosts wideband performance

- by Warren Webb

Software turbocharges IC-logic simulation

New US passports contain secure identification chips

EDNat 50

- BY MAURY WRIGHT, EDITOR IN CHIEF

BAKER’S BEST: Changing the PWM signal to dc

- BY BONNIE BAKER

“Brick-wall” lowpass audio filter needs no tuning

- Diego Puyal and Pilar Molina, University of Zaragoza, Zaragoza, Spain

Fast-settling picoammeter circuit handles wide voltage range

- Rob Whitehouse, Analog Devices, Wilmington, Massachussetts

Ultralow-cost, two-digit counter features few components

- Noureddine Benabadji, University of Sciences and Technology, Oran, Algeria

Low-cost kits conquer FPGA design

- BY DAVID MARSH • CONTRIBUTING TECHNICAL EDITOR
DOMINATING COMMUNICATIONS AND COMPLEX INDUSTRIAL APPLICATIONS, FPGA MAKERS ARE LOOKING TOWARDS DESIGN WINS IN LOWER END AUTOMOTIVE AND CONSUMER DESIGNS. WITH TODAY’S DEVICES BLURRING THE DISTINCTIONS BETWEEN CPLDS AND FPGAS, LOW-COST DESIGN KITS HELP FIRST-TIME USERS TACKLE SOPHISTICATED SYSTEMS.

CIRCULATING CURRENTS: THE WARNINGS ARE OUT

- BY PAUL RAKO • TECHNICAL EDITOR
UNDERSTANDING HOW TO AVOID OR MINIMIZE THE EFFECTS OF CIRCULATING CURRENTS CAN MAKE YOUR DESIGNS MORE ROBUST. EVERY ENGINEER SHOULD KNOW THE TECHNIQUES FOR NEUTRALIZING THIS INSIDIOUS PHENOMENON.

Load-transient-response testing for voltage regulators

- VARIATIONS OCCUR IN VOLTAGE REGULATORS’ TRANSIENT LOADS; THUS, THE DEVICES REQUIRE CAREFUL EVALUATIO
BY JIM WILLIAMS • LINEAR TECHNOLOGY CORP

25V step-down converter

Hand-held RF power meter

Core voltage controllers

Residential-gateway reference design

Charger detects dangerous conditions

Flash MCU for audio