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Design and provide the logic circuit of a 4 bit counter usingthe same techniques used to design synchronous sequential machines.The counter has three inputs: EN (Enable), OD (Order), and ST(Step). The initial output of the FSM is 0000. When the EN signalis set to 1, the counter starts counting. When EN = 0 the countermaintains its current output. If OD = 0, the count is in ascending order and the resets to 0000 after 1111, and if OD = 1, the countis descending order, and the count moves to 1111 after 0000. The signal ST decides the step of the count. If ST = 1, the count is insteps of 1. If ST = 0, the count is in steps of 2.
If the power of a 500-kHz transmitter is increased from 150 W to 300 W, what would be the percentage change in field intensity at a given distance from the transmitter. What would be the decibel change in field intensity.
Using a 4-bit synchronous counter and an AND gate, construct a counter that counts from 0000 through 1010. Repeat for a count from 0000 through 1110. Minimize the number of inputs to the AND gate.
Explain the characteristics of electromagnetic waves and application to communications systems and determine the signal spectra for the content of complex waveforms
An amplifier with a power gain of 3dB is to be characterized. The test apparatus provides a SNR of 20dB at the input and measures a SNR of 15dB at the output. Find the amplifier's NF. Specifications for (2), (3), (4) and (5).
The Bandwidth of a broadband signal is 6 MHz and it's maximum frequency is 106Mhz. What is the most likely carrier frequency. WHich of the follwing is not a fundamental characteristics determines the effectiveness of a communication system.
The traffic light changes from green (logic 0) to red (logic 1) when thebeginning of the train is 1 mile from the junction. The light changes back to green when the end of the train is 1 mile away fromthe junction. Assume that the length of the tr..
Create 2 equations with 2 unknown variables. For example, one equation would be ax + by = c and the other equation would be dx + ey = f where x and y are the variables and a, b, d, and e are coefficients for the variables and c and f are numbers.
A switch closes at t=0 and the capacitor is discharged through the wire with 1 Ohm resistance. Find the expression for the magnetic field strength inside the capacitor 1 cm from the axis as a function of time. Draw the graph of B versus t.
Baseband digital trnamission and multi level coding, A baseband digital data link transmits polar binary NRZ current pulses at a rate of 1.0 Msps. The link uses ideal RRC filters with roll off factor r = 0.5.
Adding dopants to a sample of silicon is found to reduce the Hall coefficient by a factor of 10 and increase the conductivity by a factor of 5. What effect has this dopant addition had on the mean free path
A Si is doped with 10^14 boron atoms per cm3. For T=300 K and T = 470 K. Determine the position of Ei, compute Ef-Ei, and draw a careful dimensioned energy band diagram for the Si sample. Note for Si Eg=1.1 eV, mp*/mn*=0.71. ni=10^14 cm-3 at 470 K
A mealy sequential circuit has one input (x) and one output (z). z can be 1 when the fourth, eighth, twelfth, etc. inputs are present, and z=1 if and only if the most recent input combined with the preceding three inputs was not BCD encoding of a ..
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