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Probelm:
(a) Explain indexed addressing in 8051.
(b) How does the 8051 distinguish between a byte address and a bit address?
(c) How do open-loop and closed loop applications differ?
(d) Explain how program memory and data memory are treated by the 8051.
(e) Will a crystal frequency of 11.0592 MHz allow the following baudrate: 600, 1200, 2400, 4800?
What value or values are required to be in TH1?
What are flip flop circuits in digital electronics? Discuss race around condition in J-K Flip Flop
Q. (a) An audio amplifier with R i = 10 k, R o = 0, and ¯A(ω), as shown in Figure (a), is used in the circuit shown in Figure with R S = 1 k,R L = 16 , and C = 0.2 µF. Sk
Q. Show television waveform? The television waveform representing one scan is illustrated in Figure. A blanking pulse with a duration of 0.18 of the horizontal - sweep period T
Q. Explain crossbar exchange, with all call processing steps and diagrams. Ans: The basic concept of crossbar switching is to provide a matrix of n x m sets of contacts with
(a) Some antennas have a physical aperture area A that can be identified and is related to the effective area A e by A e = ρ a A, where ρ a is known as the aperture efficiency.
Discuss in detail the several energy resources and their availability. How does a Rankine cycle differ from a modified Rankine cycle? Write down the mathematical expression of m
DC chopper This is one stage conversion device which is used for direct conversion of fixed de voltage at a level to an adjustable dc voltage at another level.
Q. An antenna with an effective noise temperature of 130 K couples through a waveguide that has a loss of 0.8 dB to a receiver. Find the effective noise temperature presented by th
Q. Explain the effect of feedback on amplifier bandwidth? The bandwidth of an amplifier is defined as the range of frequencies for which the gain remains constant.The gain -ban
Q. Sketch the asymptotic Bode diagrams for the following functions:
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