ECET 105 Week 1 Homework Assignment # 1 (100% CORRECT SOLUTIONS)

Document Content and Description Below

ECET105 – Digital Fundamentals Homework Assignment #1 Name _ 1. Does a typical computer have any analog outputs? If so, what are they? Yes, most computers typically use speakers to produce ... sound output which uses analog output. 2. List three advantages of digital signal representation as compared to their analog representation. Three advantages of digital signal representations over analog are that it is not effected by external noise as bad as analog, uses less bandwidth, and you can accomplish multidirectional transmission simultaneously. 3. Convert 126 x 10+2 to scientific and engineering notations. 1.26 x 10^4 (scientific) 12.6 x 10^3 (engineering) 4. Make the following conversions: a. Convert 0.34 seconds to milliseconds. 340 x 10^-3 ms b. Express 0.0005 x 10-4 farads as picofarads. 50000000 x 10^-12 picofarads 5. The frequency of a signal is equal to the reciprocal of the signal’s period (f = 1/p). For a computer with a 2.4 GHz clock, what is the clock period? Use engineering notation for your answer. 2.4 x 10^9 = 1/p 1 / 2.4 x 10^9 = .4 x 10^-9 = .4 ns 6. The signal shown below is a sine wave as it might be displayed on an oscilloscope. If it takes 40 msec. for the waveform to travel between the points shown by the arrow “B” below, what is the frequency of the waveform? f = 1/p f = 1 / 40 x 10^-3 f = 25 x 10^-3 = 25ms 7. Power (in watts) is a certain amount of energy (in joules) divided by a certain length of time (in seconds). The laser with the highest peak power produces energy of 186 joules in 167 femtoseconds. What is the peak power? Use engineering notation for your answer. (Note: Use references to determine the value of a femtosecond and the proper notation for your answer.) P = E/t P = 186 / 167 x 10^-15 P = 1.114 x 10^15 = 1.114 PW 8. Which logic function produces a HIGH output only when all of the inputs are HIGH? NAND Gate 9. Which logic function produces a HIGH output only when all of the inputs are LOW? NOT Gate NOR Gate 10. Using the Internet, find the data sheet for the 74LS00 integrated circuit chip. Answer the following: a) How many pins are on the chip? 14 pins b) To which pin is power applied? 14 c) What is the value of the power applied to the chip? 4.75V min – 5.25V max 5V nom d) To which pin is ground applied? 7 e) How many logic gates are on this chip? 4 logic gates. Quad 2-input NAND Gate [Show More]

Last updated: 1 year ago

Preview 1 out of 3 pages