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Monday Quiz: Still on oscilloscopes

05 Oct 2015  | Martin Rowe

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2. When troubleshooting high-speed serial data buses, how can you minimise the effects of probe loading?

a. Choose a probe whose impedance is at least 10 times the source impedance.

b. Always use a passive probe to eliminate distortion due to an active probe's circuitry.

c. Make sure the probe bandwidth is at least twice but no more than three times the signal bandwidth.

d. b and c only

e. All of the above

Monday Quiz

3. Which statement best describes digital oscilloscope sampling techniques?

a. A digital oscilloscope's sample rate in megasamples per second must always exceed twice the frequency in megaHertz of the waveform it captures.

b. Oscilloscopes can use sin x/x interpolation to reconstruct a periodic waveform based on two or more acquired samples per waveform period.

c. Equivalent time sampling is a technique that enables a digital oscilloscope to capture in real time a signal whose bandwidth in megahertz exceeds half the scope's sampling rate in megasamples per second.

d. a and b only

e. All of the above

f. None of the above

Monday Quiz


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