The circuit configuration shown in Figure is redesigned such that VCC = 3.3 V, R1 = 16 k, RC = 6 k, and RB = 20 k. Let β = 50.
(a) Determine i1, i3, i4, and v for (i) vX = 0.1 V, vY = 3.3 V and (ii) vX = vY = 3.3 V.
(b) Calculate the maximum fanout for the output low condition such that Q1 remains biased in saturation.
(c) Repeat part (b) if the maximum collector current is limited to 5 mA.
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