The transistors in the circuit of Fig. P10.101 have 0 = 100, VA = 100 V, and C = 0.2 pF
Chapter 10, Problem 10.101(choose chapter or problem)
The transistors in the circuit of Fig. P10.101 have 0 = 100, VA = 100 V, and C = 0.2 pF. At a bias current of 100 A, fT = 200 MHz. (Note that the bias details are not shown.)Rsig Vsig 100 A 100 A Figure P10.101 (a) Find Rin and the midband gain. (b) Find an estimate of the upper 3-dB frequency fH . Which capacitor dominates? Which one is the second most significant? (Hint: Use the formulas in Example 10.13.)
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