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大家看看从美国空运过来的笔试题目
Name Vehicle Buses
Name possible sources of Electromagnetic interference on Electronics Circ
uit ASM
Wavelength for MHz frequency signal is____
Name important considerations for car radio performance related to audio
signal processing under multipath condition?
What is the typical FM receiver RF signal strength to achieve dB S/N for
car radio?
When a radio is tuned to MHz & with a LO of MHz what is the ima
ge frequency?
For a system with a matched impedance what is the Reflection Coefficient a
nd SWR?
Which property of the output capacitor is the primary cause of Low Drop Out
(LDO) regulator loop instability?
a) Equivalent series resistance(ESR)
b) Effective series inductance(ESL)
c) Capacitance value
d) Dielectric material
The switching regulator is capable of:
a) Higher power conversion efficiency
b) Providing an output voltage that is higher than the input
c) Generating an output boltage oppsite in polarity to the input
d) All of the above
A linear regulator op*(没抄清楚)
Vin(max)=vVout(min)=vIout(max)=mAIq(max)=mATa(max)=摄氏度
The regulator is available in packagesEach package has the following ther
mal characteristics:
Package ? Rja(摄食度/W) Rjc(摄食度/W)
TO ?
SO ?
DP ?
Choose the most suitable package to handle the power dissipation requireme
nt without a heat sink and why
