hw01 - ECE 315 Homework 1 Due 12noon in the drop box...

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1 ECE 315 Homework 1 Due 12noon, August 30, 2007 in the drop box 1. (Simple definition of signals) Briefly (in 1 to 3 sentences) explain the following: (a) What is the basic difference in transient values between digital and analog representation when v(t) or i(t) is used in microelectronics? (4 pts) (b) What is the difference in the ambient noise effect between digital and analog signals? (4 pts) (c) Is the digital signal a broadband or narrow band signal in terms of frequency spectrum? (4 pts) (d) If we sample a signal at an interval of T sample , what is the highest frequency feature that we can capture? (4 pts) (e) For the realistic voltage transfer curve of Fig. 1.13 (or slide 12 in note 1), describe how voltage gain affects the input signal range without output saturation. (4 pts) 2. (Large signals and small signals) For the output and transfer characteristics below, (a) For the output characteristics at the quiescent point Q 1 , what is the large-signal resistance?
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