Chapter 7, Problem 7.29P

Reconsider the circuit in Figure P728. The transistor parameters are $\beta =120$ , $V_{BE}\text{(on)}=0.7\text{V}$ , and $V_A=\infty$ . The circuit parameters $V^{+}=3.3\text{V}$ and $R_S=100\text{Ω}$ . (a) Find $R_B$ and $R_E$ such that $I_{EQ}\text{=0}\text{.25mA}$ and $V_{CEQ}=1.8\text{V}$ . (b) Using the results of part (a), find the value of $C_C$ suchthat $f_L=20\text{Hz}$ . (c) Determine the midband voltage gain.