Edn Magazine October 21 2010


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a A Canon Communications LLC Publication 21 OCT Issue21/2005 20/2010 Issue www.edn.com Voices: NEDA’s Robin Gray Pg 20 EDN.comment Pg 8 Absorb current spikes and noise Pg 22 Prying Eyes Pg 24 Design Ideas Pg 59 VO ICE O F TH E E NG I NE E R VOLTAGE REFERENCES HOLD STEADY Page 38 UNDERSTANDING SYSTEM-LEVEL ENERGY-MANAGEMENT TECHNIQUES AND TEST Page 28 IEEE 1588-2008 PERSPECTIVES AND OPPORTUNITIES Page 52 Tales from the Cube: Bet your boots: It’s beer time! Pg 66 Go-to-Market. FR O M C I R R U S LO G I C Apex Precision Power ® solutions will help you get your products to market faster. They’re like a cheat sheet for efficiency. THE PA107DP, MP103FC HIGH SPEED, HIGH VOLTAGE LINEAR AMPLIFIERS Cirrus Logic power linear amplifiers, featuring the technology of Apex Precision Power, make designing with power simple! The PA107DP delivers a 3,000 V/μs slew rate to drive piezo actuators with ground breaking speed. The MP103FC is a dual amplifier with 15 A of output current per channel and a 180 V/μs slew rate to drive slower piezos but with multiple drivers. · High speed rail-to-rail 3,000 V/μs (PA107DP), 180 V/μs (MP103FC) · High power bandwidth 230 kHz · Wide dual supply voltage 30 V to 200 V (MP103FC), 40 V to 200 V (PA107DP) · High PEAK output current 5 A (PA107DP), 15 A (MP103FC) The superior quality and reliability of these off-the-shelf solutions can eliminate design cycle headaches and speed your time to market. LEARN MORE AT: www.cirrus.com/107edn © 2010 Cirrus Logic, Inc. All rights reserved. Cirrus Logic, Cirrus, the Cirrus Logic logo designs, Apex Precision Power, Apex and the Apex Precision Power logo designs are trademarks of Cirrus Logic, Inc. All other brands and product names may be trademarks or service marks of their respective owners. EDN10212010 APE DATA X V15 reque BO st w w w.c a copy or dow O K nloa ir rus.co d m /107 at e dn Windows.® Life without Walls™. Dell recommends Windows 7. Let your vision take shape. Image provided by Autodesk and created with Autodesk Revit software for building information modeling (BIM). Unleash your creativity and imagine the possibilities. Then watch as they become reality with the power of Dell Precision™ workstations and Autodesk® BIM software. Dell Precision™ workstations deliver the performance and graphics needed to run demanding applications with ease. Now your team can use data-rich modeling to evaluate new design options, predict building performance and communicate more productively. Ŕ4DBMBCMFPQUJPOTŊTFMFDUTZTUFNTBSFBWBJMBCMFXJUIVQUP(#PG NFNPSZ BOE5#PGJOUFSOBMTUPSBHF Ŕ"GVMMSBOHFPGEFTLUPQ SBDLBOENPCJMFXPSLTUBUJPOTUPţUZPVSOFFET Ŕ*47DFSUJţFEGPSMFBEJOHBQQMJDBUJPOT JODMVEJOH"VUPEFTL® Ŕ4UBZVQBOESVOOJOHXJUIBZFBS-JNJUFE)BSEXBSF8BSSBOUZ BOE PQUJPOBM%FMM1SP4VQQPSU™ Get Equipped Find your ideal configuration online. Go to dell.com/smb/vision or call your sales rep at 1-877-952-3355 Windows® 7 Professional operating system makes the things you do every day faster and easier. With fewer clicks, faster searching, easier browsing and simpler ways to connect, there’s less between you and what you want to do. "DUVBMDBQBDJUZWBSJFTXJUIQSFMPBEFENBUFSJBMBOEPQFSBUJOHFOWJSPONFOUBOENBZCFMFTT4JHOJţDBOUTZTUFNNFNPSZNBZCFVTFEUPTVQQPSUHSBQIJDT EFQFOEJOHPOTZTUFN NFNPSZTJ[FBOEPUIFSGBDUPST 'PSDPQZPG-UE)BSEXBSF8BSSBOUZ XSJUF%FMM64"-1"UUO8BSSBOUJFT 0OF%FMM8BZ 3PVOE3PDL 59PSWJTJUEFMMDPNXBSSBOUZ3FNPUF %JBHOPTJTJTEFUFSNJOBUJPOCZPOMJOFQIPOFUFDIOJDJBOPGDBVTFPGJTTVF NBZJOWPMWFDVTUPNFSBDDFTTUPJOTJEFPGVOJUBOE