For the circuit shown in Figure P6.46, let (V_{C C}=3.3 mathrm{~V}, R_{L}=4 mathrm{k} Omega), (R_{1}=585 mathrm{k} Omega,

Question:

For the circuit shown in Figure P6.46, let $V_{C C}=3.3 \mathrm{~V}, R_{L}=4 \mathrm{k} \Omega$, $R_{1}=585 \mathrm{k} \Omega, R_{2}=135 \mathrm{k} \Omega$, and $R_{E}=12 \mathrm{k} \Omega$. The transistor parameters are $\beta=90$ and $V_{A}=60 \mathrm{~V}$.

(a) Determine the quiescent values $I_{C Q}$ and $V_{E C Q}$.

(b) Plot the dc and ac load lines.

(c) Determine $A_{v}=v_{o} / v_{s}$ and $A_{i}=i_{o} / i_{s} .(\mathrm{d})$ Find $R_{i b}$ and $R_{o}$.

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