电子信息专业英语试卷B.doc

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1、一、根据英文单词写出屮文词义（每题1分共20分）silicon硅2powerdissipation功耗3flipflop触发器4baseband基带5micron微米6assemblylanguage汇编语言7transientresponse瞬态响应8qualityfactor品质因了9powersupply电源10.quantizationlevel量化电平11.undersampling欠采样12.dielectric介电的13.decibel分贝14.dutycycle占空比15.transducer传感器16.emulati

2、on仿真17.power-up加电18.buffer缓冲器19.semi-custom半定制20.synthesis综合二、根据中文词义写出英文单词（每题1分共20分）1.电流源currentsource2.晶体管transistor3.周期period4.稳定性stability5.矢量vector6.复位reset7.除法division8.振荡器oscillator9.锁存器latch10.滤波器filter11.电感inductance12.电容capacitance13.寄存器register14.正反馈positivefe

3、edback15・并联parallel16.谐振resonance17.晶体crystal18.原理图schematic19.整流器rectifier20.增益gainWhatisafilter?Afilterisadevicethatpasseselectricsignalsat_certainfrequenciesorfrequencyrangeswhile_preventingthepassageofothers.Filtercircuitsareusedinawidevarietyofapplications.Inthefil

4、edoftelecommunication（在电信领域）,banpassfiltersareusedintheaudiofrequencyrange（0kHzto20kHz）formodemandspeechprocessing（调制解调器和语音处理）.High-frequencyband-passfilters（severalhundredMHz）areusedforchannelselection（信道选择）intelephonecentraloffices.Dataacquisitionsystemsusuallyrequire

5、_anti・“li“singlow・passfilte电（抗混叠低通滤波器）aswellaslow-passnoisefiltersintheirprecedingsignalconditioning（信号调理）stages.Systempowersuppliesoftenuseband-rejectionfilterstosuppressthe60-Hzfrequencyandhighfrequencytransients.Inaddition,therearefiltersthatdonotfilter（滤除）anyfrequen

6、ciesofacomplexinputsignal,butjustaddalinearphaseshift（线性相移）toeachfrequencycomponent,thuscontributingaconstanttimedelay（吋延）.Thesearecalledall-passfilter（全通滤波器）.Athighfrequencies（＞1MHz）,allofthesefiltersusuallyconsistpassivecomponentssuch“sinductors（L）,resistors（R）,andcap

7、acitors（C）.TheyarethencalledLRCfilters.Inthelowfrequencyrange（1Hzto1MHz）,however,theinductorvaluebecomesverylargeandtheinductoritselfgetsquitebulky,makingeconomicalproductiondifficult.Inthese_c“ses》_activefilters_（有源滤波醫替）becomesimportant.Activefiltersarecircuitsthatuse—

8、Operationalamplifier（运算放大醫害）astheactivedevicejncombinationwithsomeresistorsandcapacitorstoprovideanLRC-likefil