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Consider a PCM-TDM system in which 24 signals are to be processed. Each signal has a baseband bandwidth of 3 KHz. The sampling rate has to be 33.3% higher than the theoretical minimum, and 8 bits are to be used. Conventional NRZ-L encoding format is used. An extra bit is added to each frame for sync. Determine:
(a) Required sampling rate(b) Line speed(c) Minimum required bandwidth
False positive and false negative rates can be adjusted, and they are often complementary: Lowering one raises the other. List two situations in which false negatives are significantly more serious than false positives.
An Emitter follower with a BJT biased at Ic = 1mA and having β = 100 is connected between a source with Rsig = 20kg and a load RL = 1kg. a) find Rin, vb/vsig, and v0/vsig. b) If the signal amplitude across the base-emitter junction is to be limitd t..
draw out a schematic that implements a 3-bit XOR gate, but consisting of only 2-bit NAND gates. Your schematic should have from 8-10 NAND gates, but NO other logic function such as OR, AND, INV gates can be in your final design.
Two friends A and B meet every morning at the Grand Central Station around 7 am. Suppose the actual times they arrive are independent and uniformly distributed between 6:55 am and 7:05am.
Develop the pseudo-code below for a program that will retrieve 2 bytes (NUM1 and NUM2) from memory, determine which is closest to the numeric value 50, and indicate the result by setting a variable named "CLOSEST" to 1 (if 1st byte is closest) or ..
A 5-MVA, 66:13.2kV, three-phase transformer supplies a three-phase resistive load of 4,500kW at 13.2kV. What is the load resistance in ohms as measured from the line-to-neutral on the high-voltage side of the transformer, if it is connected in Y-Y..
Two concentric cirlces have radii of 5cm and 48mm. A particle traveling at 0.25 m/s smashes into the inner surface of the outer sphere. If the potential of the spherical capacitor is 50 V, what is the magnitude of charge picked up by the particle
Model and simulate a 4-to-1 multiplexer using (a) Dataflow Modeling, (b) Behavioral Modeling, and (c) Structural Modeling. Use Modelsim and a VHDL test bench to simulate all the three models for a 4-to-1 multiplexer.
The configuration is shown in Figure 6.5. Use six LEDs as shown in Table 6.1 to represent the outputs. The Time in This State can be met in several ways. One method is to use a debounced switch as input, another to input a 1 Hz clock.
A cylindrical conductor of radius b is solid, except for a hole of radius a, bored down the z axis. Uniform current I flows in the positive z direction. a) Using Ampere's circuital law, find the magnetic field strength
derive a general formula for percent clipping of a unit amplitude sinusoidal test signal; this is the percent of time during one period in which the signal is clipped. The formula includes peak sinusoidal voltage Vp that would appear at the ouput
calculate the losses in the transformer under these conditions. losses and efficiency when the transformer delivers its rated power to a load having a power factor of 90%
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