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Question: Compute the maximum efficiency of the cascode PA shown in Fig. 12.31(a). Assume M1 and M2 nearly turn off but their drain currents can be approximated by sinusoids.
A receive earth station has a line loss of 0.1 dB, followed byan amplifier with noise temperature 100 K and gain 50 dB, and areceiver with noise figure 30 dB. What is the equivalent noisetemperature [K] of this cascade of 2-port devices
Give the remaining six layers of OSI in proper order starting with the layer just above the physical layer ? What are the basic responsibilities of the data-link layer (OSI layer 2)?
How much time is required to cool the slab to 320 K? Neglect convection off the edges of the slab since almost all the surface area is on the two 16 cm x 16 cm sides.
What is correct symbol rate (pulse rate) for this link? What is the bit rate with BPSK modulation? What is the bit rate with QPSK modulation?
Suppose unchirped Gaussian pulses at f = 1:55 fm are used to transmit binary data. You're given that the fiber dispersion parameter f = 17 ps/km-nm, and the dispersion length LD = 115 km. What is the half-width of the pulse at the origin
Write an Assembly program to find the number of ones in file register location 10H and write a NOS Assembly program that will read 30 values through port B one value at a time.
Find Vx across the resistance R3 = 10Ω, using in network figure.- Nodal analysis- Mesh analysis -Superposition- Thevenin theorem- Norton theorem.
Discuss these possible reasons, indicating which are the most important: The field is so young; such different needs; there are so many types of systems; and people with widely different backgrounds are developing.
Create a new device symbol for the Full Adder and save it and create a new device symbol for the 4-bit cascaded adder.
For each of the following functions, put the equation in the form of a Shannon decomposition. Create a pass transistor schematic to implement the function. Count the number of NMOS and PMOS transistors and the number of inverters.
i) Identify the PSK type and calculate the bandwidth if the modem is transmitting with 9600bps and 2400 baud. ii) Suggest a way to reduce the baud rate to 1200 baud and calculate the new bandwidth.
Candy costs 20 cents, and the machine accepts nickels and dimes. Change should be returned if more than 20 cents is deposited. No more than 25 cents can be deposited on a single purchase: therefore. the maximum change is one nickel.
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