Calculate the high 3 dB cut-off frequency f_{H} of BJT Emitter follower as shown in Fig. 11.32, whose parameters are C_{b^{′}e} = 15 pF, C_{b^{′}c} = 1 pF, g_{m} = 57.14 m mho, β= 80, R_{s} = 200 Ω , r_{b^{′}e} = 1.4 kΩ .
Calculate the high 3 dB cut-off frequency f_{H} of BJT Emitter follower as shown in Fig. 11.32, whose parameters are C_{b^{′}e} = 15 pF, C_{b^{′}c} = 1 pF, g_{m} = 57.14 m mho, β= 80, R_{s} = 200 Ω , r_{b^{′}e} = 1.4 kΩ .