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大家看看从美国空运过来的笔试题目
1、Name3VehicleBuses.
2、Name2possiblesourcesofElectromagneticinterferenceonElectronicsCirc
uitASM.
3、Wavelengthfor12MHzfrequencysignalis____
4、Name2importantconsiderationsforcarradioperformancerelatedtoaudio
signalprocessingundermultipathcondition?
5、WhatisthetypicalFMreceiverRFsignalstrengthtoachieve30dBS/Nfor
carradio?
6、Whenaradioistunedto98.1MHz&withaLOof108.8MHz,whatistheima
gefrequency?
7、Forasystemwithamatchedimpedance,whatistheReflectionCoefficienta
ndSWR?
8、WhichpropertyoftheoutputcapacitoristheprimarycauseofLowDropOut
(LDO)regulatorloopinstability?
a)Equivalentseriesresistance(ESR)
b)Effectiveseriesinductance(ESL)
c)Capacitancevalue
d)Dielectricmaterial
9、Theswitchingregulatoriscapableof:
a)Higherpowerconversionefficiency
b)Providinganoutputvoltagethatishigherthantheinput
c)Generatinganoutputboltageoppsiteinpolaritytotheinput
d)Alloftheabove
10、Alinearregulatorop*(没抄清楚)
Vin(max)=10v,Vout(min)=4.8v,Iout(max)=2.5mA,Iq(max)=2.5mA,Ta(max)=8.5摄氏度，
packagehasthefollowingther
malcharacteristics:
PackageRja(摄食度/W)Rjc(摄食度/W)
TO2205035
SO1412530
D1P810052
Choosethemostsuitablepackagetohandlethepowerdissipationrequireme
ntwithoutaheatsinkandwhy.
