Figure Q3 shows a common-source amplifier with parasitic capacitors, CGS, CGD and CDB. Assume that the body effect, y = 0 and channel-length modulation, = 0. By evaluating the design of this amplifier circuit, Vin Rs CGD HH CGS Figure Q3 V DD By using Miller's Theorem, deduce the expression for the total input and output capacitances seen at node X and node Y, respectively. By using open-circuit time constant method, deduce: i) the expression of the input pole frequency, @in, at node X. ii) the expression of the output pole frequency, @out, at node Y.