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show diagramatically the logic arrangement of a programmable logic array required to implement an S-R latch.
For the following signal x[n] = ( 1 0 n 4 0 otherwise (a) Compute its spectrum following the definition of the Fourier transform. (b) Obtain its magnitude spectrum in one period . Note: pay attention to that the magnitude must be positive.
If L=0.0053nH, C=15µF find the operating frequency of series LC circuit. What factors decides capacitance? Explain using diagram.
(Combinational versus Sequential Circuits) Which of the fol¬lowing contain circuits that are likely to be combinational and which contain sequential circuits? Explain your rationale.
Given a char variable called gender, write C++ statements to output "Male" if gender contains upper or lower case M, "Female" if it contains upper or lower case F, or "Invalid Gender" if it contains anything else. Use if / else if statements.
Any flip-flop type can be implemented from another type with suitable logic applied to the latter's inputs. Show how to implement a loadable D flip-flop starting with a T flip-flop.
A system is described by the differential equation ty'(t)-8y(t)=x(t). Classify the system as to linearity, time-invariance and stability. Show that a system with exicitation x(t) and response y(t) described by y(t)=u(x(t)) is nonlinear, time invari..
A closed solenoid has a 100 turn coil. That core has a reluctance of 0.8(A-T/Wb). What current is needed in the coil to produce a flux of 200 Wb
A signal, bandlimited to 1Khz, is sampled by multiplying it with a rectangular pulse train with repetition rate 4KHz and pulse width 50 μs. Can the original signal berecovered without distortion, and if so, how
Light of free-space wavelenth lambda_0= 0.87 micrometers is guided by a thin planar film of width d=2 micrometers and refractive index n_1=1.6 surrounded by a medium of refractive index n_2=1.4.
CDMA is a multiple access technique to allow multiple users to share the same bandwidth, based on the orthogonality of their spreading codes. CDMA is a descendent of the direct sequence spread spectrum (DSSS) technology designed for antijam (AJ).
Frequency multiplers are used at the transmitter to bring up the frequency level to the transmitter level frequency. Why don't we use the crystal oscillator to generate the transmitter level frequency
Draw the logic diagram of a 4-bit parallel load register; include a reset signal forclearing the register when the reset signal is set to 0.
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