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Question: It is often preferred to use a FET for the RF amplifier in an AM receiver. Can you explain why?
Please explain with details and also provide the examples.
A full adder is a circuit which adds three bits X, Y, Z together and returns two bits C and S to represent the total as a 2-bit binary number C S. C is the MSB and S is the LSB. For example, if X=1, Y=1, Z=0, the total should be 2, or 102 in binar..
An LVDT is used in an accelerometer to measure seismic-mass displacement. The LvDT and signal-conditioning output is 0.31 mV/mm with a +/-2 cm maximum core displacement. The spring constant is 240 N/m, and the core mass is 0.05 kg.
Transmission line A coaxial transmission line has characteristic impedance Z0 = 50 ohms and has length L = 200 m and phase velocity vp = 2.0e8 m/s. The end at x = 0 is terminated with Rs = 50 ohms and the end at x = L is terminated with RL = 75 oh..
Design a 3-input CMOS OR-gate using MOSFETs on the CD4007 chip. Make certain that the power dissipation is zero when the output is both logic 1 and logic 0. As an added challenge, design the OR gate using the minimum number of CD4007 chips.
Draw an accurate phasor diagram of the four voltages from the R-L-Ccircuit. Derive three expressions for the phase angle between Vsand Vr from the phasor diagram.
a- for this modulator a 1-v signal produces a deviation of 20Khz determine the amplitude and phase spectra of s(t) for the modulating signal m(t) = 1.5 cos(2*pi*6*10^4*t) when fc>>fm b- find the bandwidth of the modulated signal using carson's rule..
design a sequence detector to detect the sequences 010 and 1001 with repetition permitted in each case.
if a 1mA movement has an internal resistance of 43 ohms, calculate the shunt resistance required to increase its range to 50mA and also 300mA.
A) Design the counter assuming the outputs come directly from JK flip-flops. B) and design the counter assuming a two-stage binary counter is used with the JK flip-flop output decoded
Find the appropriate subchannel modulation format (note: the number of constellation points in the modulation mapping scheme should be the power of two).
apply the mesh current method to the network of figure 4-33 and write the matrix equation by inspection. obtain
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.
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