Ignoring early effect, if R2 is the total resistance at the collector, what could be the approximate output pole of a simple C.E. stage?
(a) 1 / [R2 * (Ccs + Cµ*(1 + 2/gm*R2))]
(b) 1 / [R2 * (Ccs – Cµ*(1 + 1/gm*R2))]
(c) 1 / [R2 * (Ccs + Cµ*(1 – 1/gm*R2))]
(d) 1 / [R2 * (Ccs + Cµ*(1 + 1/gm*R2))]
The question was asked during a job interview.
I need to ask this question from Effect of Various Capacitors on Frequency Response in section Transistor Frequency Response of Analog Circuits