ECET 105 Week 2 Homework Assignment # 2 (Download To Score An A)

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ECET105 – Digital Fundamentals Homework Assignment #2 1. What is the duty cycle for a square wave signal that is HIGH for 15 nsec and LOW for 30 nsec? D=T/P*100% so (15 nsec / (15+30 nse ... c)) *100% which comes out to a 33.33% duty cycle 2. A pulse train is shown on the oscilloscope below. Determine the period of the pulse. The period = the time scale * distance of one full pulse cycle So in this case it is 20 ns*5 = 100ns 3. Determine the frequency for a pulse that occurs every 10 ms. for a pulse that occurs every 10 ms the pulse would make 100 cycles per second making the frequency = 100Hz 4. What is the base-10 value for the binary number 11012? 1101= (2^3*1) +(2^2*1) +(2^0*1) = 1101= (2^3*1) +(2^2*1) +1 = 13 1101 would be 13 in base 10 5. What are the respective weights of the 1s in Problem 4? 2^3,2^2,2^0 6. How many different values can be represented by 6 bits, 7 bits, 8 bits, and 10 bits? 6=64, 7=128, 8=256, 10= 1024 7. What is the minimum number of bits required to represent each of the following decimal numbers: 10, 1,000, 100,000, and 1,000,000? 10 = 4 1,000 = 10 100,000 = 17 1,000,000 = 20 8. Convert the binary value, 1011010100101101, to a hexadecimal equivalent. 1011 0101 0010 1101 = B52D 9. Convert the following decimal numbers to 8-bit binary values. For negative numbers, use the 2’ complement formulation. a. 98 = 1100010 b. -37 = 11011011 c. -85 = 10101011 10. Express each of the following signed numbers (2s complement format) in decimal: a. 10011001 = 153 b. 01110100 = 116 c. 10111111 = -65 [Show More]

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