Lecture 13. ANNOUNCEMENTS Midterm #1 (Thursday 10/11, 3:30PM-5:00PM) location: 106 Stanley Hall: Students with last names starting with A-L 306 Soda Hall: Students with last names starting with M-Z EECS Dept. policy re: academic dishonesty will be strictly followed ! HW#7 is posted online.
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Reading: Chapter 11.1-11.3
Applying the principle of superposition:
A0 is the low-frequency gain
wzjare “zero” frequencies
wpj are “pole” frequencies
Collector junction: depletion capacitance, Cm
Emitter junction: depletion capacitance, Cje, and also diffusion capacitance, Cb.
BJT small-signal model
Conceptual set-up to measure fT
Note that wp,out > wp,in