ECE102_W04_Quiz1

ECE102_W04_Quiz1 - slope, etc.). Question 5 (2+2+2 points):...

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ECE102 Quiz 1 Winter 2004 1 Student ID Name (Last, First) Score Question 1 (1+1 points): Consider the black box system representation below, where x(t) is the input signal and y(t) the output signal. (a) Is this system linear or not, and (b) why? Question 2 (3 points): Complete the table below (i.e. calculate the voltage gain in decibels). Voltage gain (linear) Voltage gain (in dB) 0.5 4 2 . 0 x(t) y(t) 25
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ECE102 Quiz 1 Winter 2004 2 Question 3 (3+3 points): Draw the bode plots of the magnitude and phase for the following transfer function: ) 100 )( 10 ( 10 ) ( 2 s s s s H + + =
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ECE102 Quiz 1 Winter 2004 3 Question 4 (3 points): Below, you see the locations on the s-plane of the poles (x) and zeros (o) of a filter. Make a rough sketch of the magnitude of the frequency response (bode plot) of this filter (assume a DC-gain of 1). Indicate the relevant points (known gain, known frequency,
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Unformatted text preview: slope, etc.). Question 5 (2+2+2 points): For the circuit shown here (with ideal infinite-gain opamps), find (a) the common mode gain (b) the differential gain (c) the common mode rejection ratio if R 1 = R 2 x x o o x x 2 1 ) ( j H (in dB) (log) V 1 +-R 1 +-V 2 V out R 2 R 3 R 4 ECE102 Quiz 1 Winter 2004 4 Question 6 (2+2+1 points): For the circuit shown here: (a) Derive the transfer function (assuming an ideal opamp with infinite gain) (b) Derive the effect on the output, of input bias currents I B+ and I B-for an opamp with finite gain A (and otherwise ideal). (c) What is the effect on the output of a high-frequency noise spike at the input? C R +-V IN V out L ECE102 Quiz 1 Winter 2004 5...
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ECE102_W04_Quiz1 - slope, etc.). Question 5 (2+2+2 points):...

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