448HW3

448HW3 - circuit derives fi'om an ac soulce with 50-O...

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University of Southern California N,Iing Hsieh Department of Electrical Engineering trtr 448L, Spring 2008 Homework Set #3 Due at the beginning of class, 29 February Circuits A and B below are designed to have the same midfrequency voltage gain and input impedance. Biasing details are not shown. The input to each
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Unformatted text preview: circuit derives fi'om an ac soulce with 50-O Thevenin resistance. Determine the noise figure that applies to each amplifier if Lf : 50 N{Hz. Vog4. The BJTs feature 1" : 10 fA, 0o: 155, and Vr1 ---+ oo. Use the BJT noise model drawn below subject to--. i6n' : 2q iuleL"f . . i.* : 2qi"loLf ....
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This note was uploaded on 05/17/2008 for the course EE 448L taught by Professor Maby during the Spring '08 term at USC.

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448HW3 - circuit derives fi'om an ac soulce with 50-O...

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