A particular version of the CS amplifier in Fig. 9.2 uses

Chapter 9, Problem 9.5

(choose chapter or problem)

A particular version of the CS amplifier in Fig. 9.2 uses a transistor biased to operate with mA/V. Resistances k , M , k , and k . As an initial design, the circuit designer selects F. Find the frequencies , , and and rank them in order of frequency, highest first. Calculate the ratios of the first to second, and second to third. The final design requires that the first pole dominate at 10 Hz with the second a factor of 4 lower, and the third another a factor of 4 lower. Find the values of all the capacitances and the total capacitance needed. If the separation factor were 10, what capacitor values and total capacitance would be needed? (Note: You can see that the total capacitance need not be much larger to spread the poles, as is desired in certain applications.)