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Describe the role played by glassy fibres in optical communications and Iist some of the advantages associated with their use. Calculate the maximum permissible totals loss in dB/km in order not to exceed an error rate of 10- 9 (200 photons per bit); assume an operating wavelength λ = 900 nm, transmission rate of 100 Mbit/s, fibre length of 10 km, Iaser input power of 1m W and operating margins of 8 dB.
Using verilog, write the code and test bench for a 4 bit shift register where if L=1 the register is loaded with R. When L goes low the contents of the registers are shifted towards the right and the MSB of the register is loaded with W.
Write an HDL behavioral description of a four-input priority encoder. Use a four-bit vector for the D inputs and an always block with if-else statements. Assume that input D[3] has the highest priority.
Prove the same result using the formula inside the back cover for ∇2 in spherical polar coordinates. (Obviously, this second proof is much simpler, but the hard work is hidden in the derivation of the formula for ∇2.)
Basic boost converter that takes in 600VDC and boost the voltage to 900VDC with an output power of 8KW and a switch with a frequency of 250KHZ. One inductor one switch one capacitor and one resistor.
A distortionless transmission line operating at 125 MHz has characteristic impedance = 40-ohm, attenuation constant = 0.02 Np/m and phase constant = 0.75 rad/m. Find the resistance and inductance per unit length for the line.
The input resistance of the recorder is unknown andlikely to be variable, but it is greater than 10kΩ. Adeflection of 1 cm per milliampere of cell current with anaccuracy of about ±3 percent is desired. What type of ideal amplifier is best suited ..
Consider the circuit shown in Figure.The circuit has been operating for a long time with the switch closed prior to t = 0. Determine the values of iL, i1, i2, i3, and vC just before the switch opens.
What is the difference between natural selection and ecological succession?
The pixels in a certain CCD camera have identical sensitivity functions w(x,y).Write the spectrum Fs(u,v) of the sample function fs(x,y) measured by the camera. what filter H(u,v) is required to reconstruct f(x,y)
a. Plot the spectra of X(w) = t sinc(wt/2). Let t = 1 and -20 =
A linear-phase FIR filter should be designed with the ideal magnitude response shown in Figure 1 which represents an narrow band-pass filter. The lower cutoff frequency, fL , is 2,000 Hz, and higher cutoff frequency, fH , is 3,600 Hz.
(a) a circuit in which one fuse will be damaged and other three not, after making all connections as per you schematic and connecting power supply (b) a circuit in which two fuses will be damaged and other two not,d connecting power supply
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