德爾福集團DELPHI的筆試題

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系統 零部件和模塊今天成電的就業辦老師介紹說德爾福是汽車界的華為從來不在
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大家看看從美國空運過來的筆試題目

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*(沒抄清楚)
Vin(max)=vVout(min)=vIout(max)=mAIq(max)=mATa(max)=攝氏度

The regulator is available in packagesEach package has the following ther
mal characteristics:
Package ? Rja(攝食度/W) Rjc(攝食度/W)
TO ?
SO ?
DP ?
Choose the most suitable package to handle the power dissipation requireme
nt without a heat sink and why

From:http://tw.wingwit.com/Article/program/Delphi/201404/30456.html