# hw11 - 3 The simulated bandwidth of the circuit is measured...

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HW11 1.

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2. 1) PSpice Simulation Frequency Response from hw10:
2) The difference between the two frequency analysis responses is that the PSpice analysis is computer generated and is created with ideal circuit circumstances. This means that the plot from the PSpice simulation is a perfect curve while the frequency response from my RC analog circuit is not nearly a smooth curve. This could be the result of the imperfections in the circuit that I built, the quality of the sound card in my PC, or the microphone input in my PC not responding perfectly. Even still, the plots are very similar and the bandwidth is easily visible in both spectrums.
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Unformatted text preview: 3) The simulated bandwidth of the circuit is measured when the output of the simulation reaches 0.7071, which is 1 divided by the square root of 2. This corresponds to a 3dB drop in the simulation which is very close to our measured value of the bandwidth of 3.4. The simulation’s value at 0.7071 was about 3.39. The reason the circuit reaches its bandwidth at high frequencies is because this circuit was a low-pass filter, meaning that most of the lower frequencies of the sound wave are passed while the higher frequencies are not all passed....
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