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1) How do you measure VM, VOH and VOL? How do you measure VIL and VIL and why is this method used?
2) Identify the noise margins (NML and NMH) on the voltage transfer characteristic. Why are these useful?
3) Draw the power supply current as a function of the input voltage for a CMOS inverter. What is the current when the input is at VOH? What transistor causes this? What is the current when the input is at VOL? What transistor causes this? What is the dc power of the CMOS inverter?
Calculate the annual average of number of photons within the wavelengths (0.495 um
F = B'D' + A'B'C + ABC + CD' Draw a circuit for this function using only AND , OR, and NOT gates. The function calls for two 3-input AND gates and one 4-input OR gate. All you have available, however, are 2-input AND and OR gates
Determine the transconductance in the saturation region for the n-channel MOSFET using the following paramters at room temperature.1. p type Si density = 2.8*10^15 /cm^3 2. Si intrinsic carrier concentration = 8.6*10^9 /cm^3 3. Metal-semiconductor ..
A unit for a telecommunications system is to be designed so as to have a minimum availability of 0.9994. The MTTR (mean time to repair) for the unit is estimated to be 24 hours.
A long narrow rod has an atomic density of 5*1028 m-3. Each atom has the polarizability of 10-40 F m2. Find the internal electric field when an axial field of 1 V/m is applied.
Draw the positive, negative, and zero sequence networks for the system. Include all impedance values and determine the bus voltages at midnight? What problem(s) do you detect?
For a chip area with area 2cm x 2cm in a 180nm logic technology, what is the approximate area of the same chip when ported to a 32nm logic technology.
Write the logic equation for Y in terms of A,B,C that solves this problem, and draw the gate-level diagram.
A generator provides the following voltage signal: v(t) = 2 + 3 sin(100pi) + 4 cos(250pi). Find the average value of the function. Note: pi = 3.1416 in this equation.
Describe the steps in the keypad polling routine. Draw a flow chart for the keypad LCD software code. Discuss challenges experienced in developing the keypad LCD software code.
Fuel cell systems that also utilize the heat produced can achieve efficiencies approaching 80 percent , more than double of the gas-turbine based electruiical generation . Assume that 25 million houuseholds produce an average of 5 kw.
Binary symmetric channel, Assume that we are transmitting binary digits over a binary symmetric channel. Let p(x=0)=p(x=1)=0.5.
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