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The chapter provides an in-depth analysis of the frequency response characteristics of Common Emitter (CE) and Common Source (CS) amplifiers, including high-frequency models for BJTs and MOSFETs. Key concepts such as the impact of loading capacitance and the significance of transfer functions are discussed, emphasizing the behavior of amplifiers in both low and high-frequency domains. Additionally, the chapter outlines methods for calculating poles and zeros in amplifier circuits, addressing practical implications in circuit design.
References
Lecture 41.pdfClass Notes
Memorization
What we have learnt
Final Test
Revision Tests
Term: Transfer Function
Definition: A mathematical representation that describes the relationship between input and output signals in a linear time-invariant system, often used for analyzing the frequency response of amplifiers.
Term: Cutoff Frequency
Definition: The frequency at which the output signal power falls to half its value, which corresponds to a drop of 3 dB in voltage; it defines the operational bandwidth of amplifiers.
Term: Pole
Definition: A frequency at which the gain of the amplifier reduces, influencing the stability of the circuit; poles are critical for determining the amplifier's frequency response.