Validation Engineer Interview Questions in San Jose, CA | Glassdoor

Validation Engineer Interview Questions in San Jose, CA


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For a 1GHz bandwidth oscilloscope, what will happen if you use it to monitor a 1GHZ square wave. If the Vpp of the square wave is 1V, what's the Vpp of the waveform shown on screen.

6 Answers

A 1GHZ sine wave. If you know the Flourier transfer of the square wave you can answer this question easily.

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If you measure a 1Vpp 1GHz signal with a 1GHz bandwidth scope you will see a 700mVpp signal on scope's screen. Bandwidth is rated at 3db roll off point ;-)

what is the cycle time of this circuit give 2 flops and some combi logic in between

2 Answers

Questions on reflection coefficients, return loss, insertion loss, return currents in PCB, EMI concerns, etc.

1 Answer

What are the differences between all of the Intel CPU architectures? The answer had to be provided in detail with specifications included.

1 Answer

Tell me the waveform output at probe 1 and 2. The problem consist of a dc 5V going to a 5V sine wave input going to a capacitor. This system is then going into a 12V dc input with a two 1K resistor in parallel. This feeds into a emitter side of a transistor with a +-3V toggle as a base. The collector is going to ground. The two probe points is (1) before the cap and (2) before the emitter.

1 Answer

How do you check PCIe Ref Clk?

1 Answer

What happens if all harmonics are removed from a square wave?

1 Answer

Square Wave has a period of 1 GHz, Vpp = 1Volt, what will be the voltage displayed on the O-Scope with BW of 1 GHz

1 Answer

Google has 300 servers around the world. Servers are failing about 1 every month. How would you go about debugging the failure?? That's great, good answer. The failure is actually random. Nothing you've tried is able to duplicate the failure exactly the same. How do you approach this?? Another good answer. Now, what do you think is actually the cause of these failures?

1 Answer