1.73 Measurement of the frequency response of an amplifier yields the data in the following table: | T | (dB) LTO) 60 0 60 f(Hz) 0 100 1000 104 105 40 20 0 -45 Provide plausible approximate values for the missing entries. Also, sketch and clearly label the magnitude frequency response (i.e., provide a Bode plot) for this amplifier.
D *1.77 A designer wishing to lower the overall upper 3-dB frequency of a three-stage amplifier to 5 kHz considers shunting one of two nodes to ground with a capacitor: Node A, at the output of the first stage, or Node B, at the output of the second stage. While measuring the overall frequency response of the amplifier, she connects a capacitor of 1 nF, first to node A and then to node B, lowering the 3-dB frequency from 3 MHz to 200 kHz and 40 kHz, respectively. If she knows that each amplifier stage has an input resistance of 100 k2, what output resistance must the driving stage have at node A? At node B? What capacitor value should she connect to which node to solve her design problem most economically?
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