标签: reducing

Solve.NoiseWhitepaperSOLVINGNOISEPROBLEMSThiswhitepaperdescribescommoncausesofnoiseTosolvethisprobleminDCmechanicalrelaysandandsuggestswaystoreduceoreliminatenoisesolenoids,connectadiodebackwardsacrosstheproblems.coil;thisclampstheinducedvoltagekickproducedbythecoil.SelectadioderatedatfourEnvironmentalNoiseProblemstimesthecoilvoltageandtentimesthecoilcurrent.Toeliminatethiseffectaltogether,usesolid-……

【应用笔记】AN531:使用硬件加速器降低功耗(AN531:ReducingPowerwithHardwareAccelerators)在使用FPGA的嵌入式产品中降低功耗越来越重要，特别是对于电池供电的应用、减少发热或成本等。ReducingpowerconsumptioninembeddedproductsthatuseFPGAsisincreasinglyimportant,particularlyforbattery-poweredapplicationsortoreduceheatorcost.YoucanuseparallelalgorithmstoexploittheparallelarchitectureofFPGAdevicestoaccomplishmoreworkperclockcycle,allowingyoutolowertheclockfrequency.High-leveldevelopmenttoolssuchasSOPCBuilderandtheNios®IIC-to-HardwareAccelerationCompiler(C2H)canhelpyouusethepower-savingpotentialoftheFPGAhardwarebyeasilyaddinghardwareacceleratorsandloweringclockfrequencies.AN531:ReducingPowerwithHardwareAcceleratorsMay2008,ver.1.0ApplicationNote531IntroductionReducingpowerconsumptioninembeddedproductsthatuseFPGAsisincreasinglyimportant,particularlyforbattery-poweredapplicationsortoreduceheatorcost.YoucanuseparallelalgorithmstoexploittheparallelarchitectureofFPGAdevicestoaccomplishmoreworkperclockcycle,allowingyoutolowertheclockfrequency.High-leveldevelopmenttoolssuchasSOPCBuilderandtheNiosIIC-to-HardwareAcceleration……

ReducingaudiobuzzdesignfeatureByBillPoole,FreescaleSemiconductorTHEPULSERATEFORGSMISWITHINTHEAUDIOBAND,ANDTHEDCCURRENTANDRFENERGYREADILYCONVERTINTOANOBJECTIONABLEAUDIO“BUZZ”WITHINTHEPHONE’SCIRCUITRY.YOUCANMINIMIZETHEBUZZIFYOUTAKEPRECAUTIONSEARLYINTHEDESIGNSTAGE.Reducingaudio“buzz”inGSMcellphonesMobile-phonedesignerswhobuildtotheGSMstandardmustsufficientlyreduceaudio“buzz”sothatitisinaudibletousers.GSMcellphonesuseaTDMA(time-divisionmultiple-access)time-slotsharingtechniquethatresultsinhighpowerRFinthe800/900-or1800/1900-MHzbands.Thetransmittercurrent,whichcanexceed1A,pulsesduringaphonecallatarepetitionrateof217Hzandpulsewidthofabout0.5msec.Ifcurrentpulsescoupletotheaudiocircui……

ReducingHardwareNoiseV1ReducingHardwareNoiseReducingHardwareNoiseDocumentNo.:TBDLastModifiedDate:July3rd,2005DocumentRevision:1.0Author:AndyJiangOmniVisionTechnologies,Inc.reservestherighttomakechangeswithoutfurthernoticetoanyproducthereintoimprovereliability,functionordesign.OmniVisiondoesnotassumeanyliabilityarisingoutoftheapplicationoruseofanyproject,circuitdescribedherein;neitherdoesitconveyanylicenseunderitspatentnortherightofothers.Thisdocumentcontainsinformationofaproprietarynature.NoneofthisinformationshallbedivulgedtopersonsotherthanOmniVisionTechnologies,Inc.employeeauthorizedbythenatureoftheirdutiestoreceivesuchinformation,orindividualsororganizationsauthorizedbyOmniVisionTechnologi……