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2c)
Q: What is happening at the output? What happens as the sample pulse
frequency is varied?
A: The output is unipolar. Increasing the sample frequency creates a smoother
analog output.
The attached plots are listed below, in order:
Plotl
Input, sample pulse and sampled output at Nyquist rate
Plot 2
Input, sample pulse and sampled output below Nyquist rate
Plot 3
Input, sample pulse and sampled output above Nyquist rate
Plot 4
Input, sample pulse and sampled output and LPF output
Plot 5
Spectrum of 5 kHz sample pulse (volts)
Plot 6
Spectrum of 5 kHz sample pulse (dB)
Plot 7
Spectrum of sampled signal (dB)
Plot 8
Spectrum of 1 kHz input
Plot 9
Spectrum of sampled signal (volts)
Lab 2 Solutions Page 5
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