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The parameters of an ideal n−channel MOSFET are
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Microelectronics: Circuit Analysis and Design
- Open loop transfer function G( s ) = K/ s(s+3)(s+4) for a systema) using the Routh Hurwitz criterion, the poles of the closed loop system are purely imaginary calculate the value that K will get so that it has roots on the axis.b) calculate the maximum value that K will receive so that the system can be stablec) calculate the values that K will get so that the system can have roots at -1 on the real axisarrow_forwardFor an N = 12 mobile system, a 75 MHz bandwidth is available for forward channels, each of which is 200 MHz. (i) Calculate the value of k for this system (ii) How many simultaneous forward calls are possible. (iii) Determine what values of "i" and "j" would satisfy the N = 12 condition, and redraw in your answer scripts in a diagram with co-channels inserted/filled out (iv) If the radius of each cell is 15 km, what would be the co-channel reuse distance, D.arrow_forwardThe n-channel FETs below have K n’ = 100μA/V^2, W = 60μm, L = 3μm, Vt = 0.7V, and λ= 0.03V ^-1.a) Label the source, gate, and drain with S, G, and D respectively for M1 and M2b) What is the region of operation of MOSFET M1?c) neglecting channel-length modulation (λ = 0), what is I D of M1?d) M2 is in saturation with I D = 640μA (neglecting λ). What is V G of M2?e) What is the current, I D, of M2 taking channel length modulation into consideration?arrow_forward
- Given a source generator supplies 100 uV signal to two identical amplifiers with a 20 dB total gain to boost the signal delivered to the output device with 150 Ω resistance. All amplifiers are connected using a transmission line with 3 dB loss. Give solution in determining: 1. the input voltage of the stage 2 amplifier in dBV 2. the output voltage of the system in mV 3. the overall power in dBa Answers: -73dBV, 0.708mV, 30.24dBaarrow_forwardConsider the following circuit and the two ports shown on it If R1 = 1Ω, R2 = 1Ω, R3 = 2Ω, and C = 1F, at what angular frequency does the above 2-port network have an impedance parameter z11 with a magnitude of 1.85? clear and correct or dislikearrow_forwardA communication system has five stages, with gains and attenuations of 12, 245, 68, 231, and 9 dB. What is the overall gain?arrow_forward
- 1. "Given a common emiiter amplifier (Fixed BIas) with the following network: RB = 3.1k, Rc = 1k, Beta = 150, Vcc = 12V. Determine the output impedance." 1.974k ohms 1k ohms 8.621 ohms 2.7k ohms The circuit does not operate as an amplifier 6.8 ohms 3.1k ohms 2. "Given a common emiiter amplifier (Voltage Divider) with the following network: R1 = 22k, R2 = 6.8k, Rc = 1k, Re = 560, Beta = 150, Vcc = 12V. The load resistance Rl = 10k. The output impedance is ________. Note: R2 is the resistor connected to the base and ground." 1000 ohms 732 ohms 909 ohms 1245 ohms "10,000 ohms" 833 ohms 3. "Given a common emiiter amplifier (Fixed BIas) with the following network: RB = 3.1k, Rc = 1k, Beta = 150, Vcc = 12V. Determine the unloaded voltage gain." The circuit does not operate as an amplifier 205 "2,202" 220…arrow_forwardı just need the fınal answer Since Vcc = 20 V, RS = 3 kΩ, RB = 380 kΩ, RC = 1.2 kΩ, RE = 2.2 kΩ, RL = 911 Ω and β = 90 in the circuit in the figure, find the value of the output voltage (Vo). NOTE-1: It is within the 1 kHz mid-band frequency and the capacitors are negligible at this frequency. NOTE-2: The output impedance (r0) of the transistor will be neglected. a. 64,14 mV b. 83,88 mV c. 93,75 mV d. 74,01 mV e. 103,62 mV f. 24,67 mV g. 34,54 mV h. 49,34 mVarrow_forward3) The fidelity of a receiver is better if its RF and IF stages have more bandwidth. Select one: True Falsearrow_forward
- Determine IDQ and VGSQ for voltage divider bias configurationfor the JFET using graphical analysis. In addition to obtaining the VD, VSand VDS.We have the following data of the different elements of the circuit, such as:R1 = 3.3 MΩ, R2 = 3.3 MΩ, RD = 860 Ω, RS = 2.2 kΩ and powered by one source 12 volts. The manufacturer's sheet indicates that IDSS = 12 mA and VP = −3 V. Include the transfer characteristic graph to obtain the values of thepoint Q.arrow_forwardThe Governate of Dhofar is densely populated that are evenly distributed over an area of 1200 km2. It is given that a percent of the populace is subscribed to a cellular system. Assuming that the cellular system is an Erlang B system with a traffic Intensity per cell of 37 Erlangs, a total band of 40 MHz and full duplex channel bandwidth of 60 kHz. The system covers the city using hexagonal cells with a diameter of 8 km and a cluster size of 7 cells. Determine the total number of cells in the system, the number of channels per cell, the total number of channels in the system and the total clusters.arrow_forwardIf the multistage amplifier is driven by a 1 μV source and the last stage is loaded with an RL = 20 kΩ, determine the ac emitter resistor, re, for each stage. Given: R1 = 33 kΩ, R2 = 8.2 kΩ, RC = 3.3 kΩ, RE = 1 kΩ, Beta = 175arrow_forward
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