The DC restore circuit seen in Fig. 18.28 has limitations, such as it stops working if a long string of 1 s or 0s is applied to the input buffer or the input data moves too quickly and the long RC time constants keep the DC restore output from following the center of the data. comment, with the help of SPICE simulation results, on these limitations. Show how changing the values of the resistors and capacitors can compensate for these limitations. (For example, using longer time constants allows for longer strings of ones are zeroes before the DC restore signal is invalid.)
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