Consider the ac equivalent circuit provided. Assume $R_E = 3k\Omega$ and $R_C = 5k\Omega$, and the transistor parameters for both $Q_1$ and $Q_2$ are: \begin{itemize} \item $I_{CQ} = 0.5 mA$ \item $\beta = 80$ \item $V_A = 100 V$ \item $V_T = 25 mV$ \end{itemize} Determine: $g_m = \boxed{} mS$ $r_{\pi} = \boxed{} k\Omega$ $r_o = \boxed{} k\Omega$ $A_{v1} = V_1/V_i = \boxed{} V/V$ $A_{v2} = V_o/V_1 = \boxed{} V/V$ $A_v = V_o/V_i = \boxed{} V/V$
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Determine V: V is the voltage across the collector resistor Rc. Since the transistor Q1 and Q2 are in parallel, the current flowing through both transistors is the same. Therefore, the voltage across R1 and R2 is the same. Using Ohm's Law, we can calculate V: V = Show more…
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