The transistor in Figure 6.3 has parameters (beta=120) and (V_{A}=infty). The circuit parameters are (V_{C C}=3.3 mathrm{~V},

Question:

The transistor in Figure 6.3 has parameters $\beta=120$ and $V_{A}=\infty$. The circuit parameters are $V_{C C}=3.3 \mathrm{~V}, R_{C}=15 \mathrm{k} \Omega$, and $I_{C Q}=0.12 \mathrm{~mA}$. A small signal $v_{b e}=5 \sin \omega t \mathrm{mV}$ is applied.

(a) Determine $i_{C}$ and $v_{C E}$.

(b) What is the small-signal voltage gain $A_{v}=v_{c e} / v_{b e}$ ?

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