# hw9_f10 - University of Florida EEL 4744- Fall 2010 Dept....

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University of Florida EEL 4744— Fall 2010 Dr. K. Gugel Dept. of Electrical & Computer Engineering Page 1/2 27-Nov-10 11:20 AM Homework 9 Due: Friday, December 3 rd Note: HW is due by 4 pm in the ECE Student Advising Office. 11.2, 11.4, 11.6, 11.7, 11.9, 11.10, 11.12 Complete the Fall 2006 final quiz questions below: A/D & D/A Conversion You are given the task of sampling audio signals from a Neumann U87 microphone and preamplifier circuit. The mic and preamplifier specifications are as follows: Mic dynamic range = 110 dBs. Pre-amplifier dynamic range = 140 dBs Mic frequency bandwidth = 5-22 KHz Pre-amplifier bandwidth = 1-100KHz Mic minimum Voltage detection = 1 uV Preamplifier Power Supply Rails = +/- 3V 1. What should the reference voltages of the A/D be if we neglect the mic and only consider the maximum signal output characteristics of the preamplifier? 2. What should the reference voltages of the A/D be if we take into account both the specifications for the preamplifier and the mic? 3. If the

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hw9_f10 - University of Florida EEL 4744- Fall 2010 Dept....

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