Shown in Fig. P3.7-12 is the output of a data hold that clamps the output to the input for the first half of the sampling period, and returns the output to a value of zero for the last half of the sampling period. (a) Find the transfer function of this data hold. (b) Plot the frequency response of this data hold. (c) Comparing this frequency response to that of the zero-order hold, comment on which would be better for data reconstruction.

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Shown in Fig. P3.7-12 is the output of a data hold that clamps the output to the input for the first half of the
sampling period, and returns the output to a value of zero for the last half of the sampling period.
(a) Find the transfer function of this data hold.
(b) Plot the frequency response of this data hold.
(c) Comparing this frequency response to that of the zero-order hold, comment on which would be better
for data reconstruction.
EN
T
3T
2
2T
Sampler
input
5T
2
3T
7T
2
Data-hold
output
Transcribed Image Text:Shown in Fig. P3.7-12 is the output of a data hold that clamps the output to the input for the first half of the sampling period, and returns the output to a value of zero for the last half of the sampling period. (a) Find the transfer function of this data hold. (b) Plot the frequency response of this data hold. (c) Comparing this frequency response to that of the zero-order hold, comment on which would be better for data reconstruction. EN T 3T 2 2T Sampler input 5T 2 3T 7T 2 Data-hold output
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