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Q. What is the basic working of Decoders?An n-bit binary code is capable of encoding up to 2n distinct elements of information. A decoder is a combinational network that decodes (converts) the n-bit binary-coded input to m outputs (m ≤ 2n). The block diagram of a 3-bit to 8-element decoder is shown in Figure (a), wherein the three inputs are decoded into eight outputs, one for each combination of the input variables. In the truth table shown in Figure (b), observe that for each in- put combination, there is only one output that is equal to 1 (i.e., each combination selects only one of the eight outputs). The logic diagram of the 3-to-8 decoder is shown in Figure (c).
Decoding is so common in digital design that decoders are commercially available as MSI (medium-scale integration) packages in the form of 2-to-4, 3-to-8, and 4-to-10 decoders. Integrated circuits for decoders are available in different forms.
Q. Why do we cascade amplifiers? Why is RC coupling the most widely used coupling between 2 stages of a cascading amplifier? The voltage or power gain or frequency response obt
For Parity Flag CPRE (Call on parity even) and CPO (Call or parity Odd) Instruction CPE calls the subroutine from the specified memory location if parity flag is
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Q. Demonstrate how finite state machine model helps in designing a switching system and give a typical illustration. Ans: Switching systemessentially belongs to class of fi
Q A60-Hz, 100-kVA, 2400/240-V(rms) transformer is used as a step-down transformer from a transmission line to a distribution system. Consider the transformer to be ideal. (a) Fi
Factors of Contributing to Losses in Service Cables 1. Tapping of underground service cables: The service cables must be visible so that tapping of cables can be detected. U
How can I get an oscillator to genarate a sinusoid instead of a triangle wave
Q. What do you mean by communication channel? The communication channel (transmissionmedium) is the physicalmediumthat is utilized to send the signal from the transmitter to th
a problem solving problem
an 8 bit successive approximation adc has a resolution of 20mv. what will be its ouput analogue input of 2.17v
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