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An analog line concentrator resides logically between the line circuits and the line side of a switching fabric. One might be placed physically at the distribution point in the loop architecture or,
consider a TSI for a system with four timeslots per frame. Draw a block diagram- it should have four 2-bit words, eight 8-bit words, and a 3-bit binary counter. Walk the TSI through three consecutiv
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,
A load consisting of a 1350Ω resistor in parallel with a 405mH inductor is connected across the terminals of a sinusoidalvoltage source vg, where vg = 90 cos 2500tV. a) What is the peak value
Call setup is proportional to arrival rate and usagecost is proportional to traffic intensity. (a) what happens to total cost if arrival rate doubles, but holding time halves (b)what happens to tota
Design a combinational circuit that multiplies two 2-bit numbers, a1,a0 and b1,b0, to produced a 4-bit productc3,c2,c1,c0,. Use AND gates and half-adders.
Such a call would not be billed, even though it may have been completed. if a call lasts more than 6seconds, the two entries would have different time stamps and wouldbe billed. Sketch a graph that
Construct a 16-bit parallel adder with four MSI circuits, each containing a4-bit parallel adder. Use a block diagram with nine inputs and fiveoutputs for each 4-bit adder. Show how the carries are
Design a finite state machine that has an input (w) and an output(z). The machine is a sequence detector that produces (z =1). when the previous two values of (w) were (00 or 11); otherwise (z = 1).
A separately excited DC motor fed through asingle phase semi- converter runs at a speed of 1200 rpm when Acsupply voltage is 230V, 50 Hzs and the motor counter emf is 140v.The firing angle delay is
Given a sinusoid v1(t) whose phasor isV1 = -3 + j4 V, use phasor phasor method to find the voltage v2(t) that leadsv1(t) by 90 degrees and has an amplitude of 10V.
A low-voltage lighting system is to use a binary logic control for a particular light. This light lies at the intersection point of a T-shaped hallway. There is a switch for this light at each of th
A binary integer of arbitrary length is presented tothe serial leading-1s detector, most significant bit first, oninput X. When a given bit is presented on input X, thecorresponding output bit is to
A Universal Serial Bus (USB)communication link requires a circuit that produces the sequence00000001. You are to design a synchronous sequential circuit thatstarts producing this sequence for input
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.
1. What should the length of an antenna be if it is going tobe used to send data at 145.01MHz, assume a 1/4λmonopole antenna is used. 2. The impedance of an antenna was measured as z = 17 -j47
After absorbing a photon in excess of its bandgap energy, the photo excited electron in the conduction band (CB) of a semiconductor moves spontaneously to the interface between the semiconductor and
Two Loads are in parallel with a 2000 Volt sinusoidal source.Load 1 draws 40 Amps at 0.5 lagging power factor. Load 2 draws 15Amps at 0.8 leading power factor. (a) Make a table showing each load and
There is a circuit with a 12V DC battery,500mH inductor, a 45 ohm resistor, and a switch all inseries. Suppose the switch has been closed for a very longtime when a wire is connected over just the b
What is the time constant for a circuit composed of a real inductor (L=.4H and R=50ohms) and a 150 ohm resistor connected in series
There is a circuit with a 12V DC battery, 500mH inductor, a 45 ohm resistor, and a switch all in series. Suppose the switch has been closed for a very long time. What is the magnitude of the curre
A parallel RLC with R = 50kΩ and C = 32nF is connected toan ideal 5 mA current source, and is observed to be resonant atω = 50x103 rad/s. Determine the value of L and the circuitQ (qualit
determine the peak output voltage for bridge rectifier assuming the particle model what PIV rating is required for the diode the transformer is specified to have a 12Vrms secondary voltage for the
1 list and describe the three type o transformer 2 describe the relationship between the turns ratio of a transformer and its input output voltages 3 berifly explain the forward and reverse operation
Use a T Flip Flop obtained from the JK Flip Flop 74LS112 chip and design a 2 bit binary counter. Draw the circuit diagram of the 2 - bit binary counter and truth table of T flip flop and binary coun