接口照片标准立体声***器MSDC2STANDARDSTERODECODERMSDC2厂家：德国罗德与施瓦茨ROHDE&SCHWARZ特性：stereomultiplexinput(balancedorunbalanced,selectedwithshortinglink)Frequencyrange:30Hz-75KHzinputimpedance(balanced):≥40KΩCommon-modesuppression:atf<150Hz:≥58dB150Hz<f<15KHz:≥46dB15KHz<f<100KHz:≥36dBinputimpedance(unbalanced):≥20KΩnominalinputlevel(settablein6-dBsteps):-12to+12dBm(0dBm=0.775vinto600Ω)continuousinput-leveladjustment:&plu***n;3dBoverdrivelimit:≥6.5dBAFOUTPUTSR,L,Moutputs(floating,balanced)nominaloutputlevel:+6dBmoutputimpedance:≤20ΩLoadimpedance:≥200ΩLeveldifferencebetweenLandRchannels:≤0.1dBSoutput(notfloating,unbalanced)nominaloutputlevel:+6dBmoutputimpedance:≤500ΩLineardistorti***frequencyresp***evariati***ofL,R,MorSoutputsignaloverthefrequencyrange30Hzto15KHzrelativeto500Hz:≤&plu***n;0.15dBSwitchabledeemphasis:50μs&plu***n;2%alternatively(slideswitchonprintedcircuitboard):75μs&plu***n;2%LinearcrosstalkcrosstalkbetweenMandSchannels:≥46dB(typ.50dB)crosstalkbetweenLandRchannels:at100Hzto5KHz:≥60dB(typ.64dB)30Hzto15KHz:≥58dB(typ.60dB)Nonlineardistorti***(L,R,MandSoutputs)Harmonicdistortionat6and12.5dBm:≤&plu***n;0.1%Difference-frequencyintermodulationdistortionaccordingtoDIN45403at12.5dBm:d2:≤&plu***n;0.05%d3:≤&plu***n;0.1%weightedandunweightednoise(with50-μsdeemphasis)unweightedsignal-to-noiseratiorelativeto+6dBmat1000Hz,frequencyrange30Hzto100KHz,rmsmeasurement:≥80dBweightedsignal-to-noiseratiorelativeto+6dBm,peak-valuemeasurementaccordingtoCCIRRecommendation468-1:≥78dBpeak-valuemeasurementaccordingtoDIN45405:≥80dBPilot-tonesuppressionrelativeto+6dBm:≥90dBSCAsuppressionrelativeto+6dBminfrequencyrange56to96KHz(SCAlevel-16dBrelativetomultiplexsignal):≥76dBIndicationonfront-panelinstrumentindicationofL,R,M,Sorpilot-tonelevelviaselectorswitchindicatingerror:≤0.2dBplus1.5%offullscalevaluepilot-toneindication:-7.5to-17dBAFindication(6rangesin10dBsteps):+18to-66dBm)