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Questions
1. Describe what is meant by the voltage gain of an amplifier
2, What is the primary purpose of a coupling capacitor ub transistor amplifiers?
Problems
1. If the input voltage to an amplifier is 50mV and the resulting output votage is 3V, calculate the voltage gain
2. A transistor is biased with IE= 5mA. Calculate r'eI
Given the following function in product-of-sums form, not necessarily minimized, F(W,X,Y,Z) = (W + X' + Y')(W' + Z')(W + Y), Re-express the function in the canonical sum-of-products form. Use little m notation.
how many bits are required to represent the decimal numbers in the range from 0 to 999 using straight binary code?
A message signal 0.01e^(-5000*t^2) phase modulates a carrier signal 3 cos(240000 pi t) with a modulation constant 600*sqrt(e). (a) Determine the expression, the power, and the bandwidth of the modulated signal.
1) Two signals are said to be orthogonal if the integral of the product of the signals is 0 over one period of the new (multiplied) signal. Assume x(t) and y(t) are orthogonal energy signals with energy, Ex and Ey, respectively.
consider a n ch enchancement mode mosfet with the following parameters:vtn=0.6v,w=5 um,l=0.5um,un=750 cm2/v-s,tox=0.02um,and Eox=(3.9)(8.85x10^-14)F/cm. when the transistor is biasedwith Vds=0.8v and 3.0v,a)determine the current when the gate is bi..
Binary symmetric channel, Assume that we are transmitting binary digits over a binary symmetric channel. Let p(x=0)=p(x=1)=0.5.
Suppose we have a resistive load that varies from 5 kOhms to 10 kOhms. We connect this load to an amplifier, and we need the voltage across the load to vary by less than 1 percent with variations in the load resistance.
Determine the period of a clock waveform whose frequency is: a. 2 MHz b. 500 kHz c. 4.27 MHz d. 17 MHz. Write the VHDL text file (Entity and Architecture) for a 2-input NAND gate. Write the VHDL text file for a 3-input NOR gate.
Two coupled coils have self-inductances L1 = 50 mH and L2 = 200 mH, and a coefficient of coupling k = 0.5. If coil 2 has 1000 turns, and I1 = 5Sin (400t) (i.e. the phasor current is 5? -90° A). Find the voltage at coil 2 and the flux through coil ..
f(t) = A[u(t) + u(-t/2-5)-1], where u(t) is the unit step function. Is the energy of this signal finite? Why or why not. If it exists, find the energy of this si
Determine the thermal equilibrium concentrations of electrons no and holes po in uniformly doped silicon for the following conditions: a) T=300 degrees K, Nd=2x10^15 cm^-3, Na=0 b) T=300 degrees K, Nd=2x10^15 cm^-3, Na=8x10^15 cm^-3
Determine the expression for the frequency response H(Omega) of a causal IIR LTI discrete-time system characterized by the input-output relation. where |a|
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