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Step 1 of 2 17.066P (a) Refer to Figure 16.26 in the textbook for the all-pass realization of the Tow-Thomas biquad filter circuit with feedforward path. Write the transfer function of the filter. = Consider the numerator expression of the transfer function. r +s = Compare the expression with the standard second order system, The all pass frequency is, = Here, observe that the expression is independent of r or Thus, the components one needs to trim to adjust are, and R, Step 2 of 2 (b) The quality factor of the all pass Tow-Thomas biquad filter is, = Substitute = = Refer to Table 16.2 in the textbook. For all pass filter, the value of the resistor, = Thus, the quality factor is, Q, = { since 0 1 = Thus, the components one needs to trim to adjust are, and or