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homework3

# homework3 - EE4609 Spring 2009 Homework#3 1 Consider an...

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EE4609 Spring 2009 Homework #3 1) Consider an interconnect comprised of a driver as represented by a Thevinen equivalent circuit, a transmission line and receiver as shown below. R S = 3Z o Z o , t d R L = 9Z o V S (t) The driver voltage is a step voltage 0 for t < 0 V S (t) = V o for t=> 0 The driver has an internal impedance of R S = 3Z o . The line has a characteristic impedance of Z o Ohms and a propagation delay of t d seconds. The driver is represented by a resistive load of impedance R L = 9Z o . a) Let V L (t) be the voltage across the receiver (R L ) versus time. Calculate and plot V L (t) versus time for 0 <= t <= 7t d . b) What is the value of V L (t) when t = .

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2) Repeat problem 1 for the interconnect shown below. R S = Z o /3 Z o , t d R L = 19Z o V S (t) a) Calculate and plot V L (t) versus time for 0 <= t <= 9t d . b) What is the value of V L (t) when t = .
3) An interconnect consists of a driver, two transmission lines in cascade of differing characteristic impedance and propagation delay and a receiver. The equivalent circuit is shown below.

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