Find midband gain am and an estimate of 3-db frequency fh

Reference no: EM131018848

A common-emitter amplifier has Cπ = 10 pF, Cμ = 0.3 pF, CL = 3 pF, gm = 40 mA/V, β = 100, rx = 100Ω, R1L = 5 kΩ, and Rsig = 1 kΩ. Find the midband gain AM and an estimate of the 3-dB frequency fH using the Miller approximation. Also, obtain another estimate of fH using the method of open-circuit time constants. Which of the two estimates would you consider to be more realistic, and why?

Reference no: EM131018848

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