6. (15 marks total) This question relates the the cascade filter shown below. 5S2 in out 562 10mH...
Please answer all parts thank you 6. [15 POINTS] Consider a passive low-pass filter as shown below. 1k2 + - m - + Vin(t) 1 mF Vout(t) a) Derive a transfer function for the above circuit. b) Derive a time-domain expression for the unit impulse response of the circuit. Also, plot the impulse response as a function of time. c) Derive a time-domain expression for the unit step response of the circuit. Also, plot the step response as a function...
2. In this problem, we will consider the use of the active filter shown below as the loop filter in an analog PLL. IN VouT (a) Use the ideal model for the op-amp to show that the filter transfer function is F(s)Yot)ST2 +1 Vin(s) ST1 and express the time contants T1 and T2 in terms of R1, R2 and C. Sketch the magnitude Bode plot of the frequency response F(f) for the loop filter, assuming that > T2 Please note:...
A decibel (dB) is a logarithmic unit used to express the ratio of two values of a physical quantity, often sound level, power or intensity. It is given by: dB - 20 logx Where x is the ratio. Convert the following numbers to dB 1. x=01 dB- dB = 3. x 10 dB- 4. x=473 dB : 5.x=1000 dB= Problem 2 (10 points) Convert the following numbers in dBs to magnitudes (i.e. find x) . -55 dB -17 dB_ 4,...
5 pts D Question 1 A system has the following impulse response: .2 Sample number, n From the choices below, select the frequency response of this system. H (eju)-e(1.5 ) (2 sin( 1.5ώ) + 4 sin(0.δώ)) H (ee) = e-j(1.5e-5) (cos( 1.5 ) +2 cos(0.54)) @ H (ee)-e-n1.si) (sin( 1.54) t. 2 sin(0.δώ)) (sin(l.50) +4sin(0.0) H (ee)-e-j(1.5i) (2 cos( 1.5ώ) + 4 cos(0.5a)) H (efo)-e-n1.5u) (cos( 1.50) + 2 cos(0.50)) https://rmitinstructure.comcoursesy 5 pts DQuestion 2 A system has the following...
Question 1 In the diagram of Superheterodne AM receiver shown below explain the function of each block. (a) 15 marks Antenna Speaker Audio and power amplifiers RF IF Mixer Detector Mi amplifier amplifier AGC --_Local Gang tuned oscillator (b) For a 4-bit DAC, calculate the output voltage for an input code word 1010 if a [10 marks] logic 1 is 10V and a logic 0 is 0V, and R = RFI kΩ Total: 25 marks] Question 2 (a) Explain the...
A common source amplifier circuit based on a single n-channel MOSFET is shown in Figure 4b. Assume that the transconductance gm-60 mS (equivalent to mA/ V) and drain source resistance, os, is so large it may be neglected. 0) Calculate the open circuit voltage gain Av Yout/ Vis. i) The amplifier has a load of 10 k2. Determine the current gain Va. = 12 V 150k 4k3 Vout Vin 200k GND = 0 V Figure 4b a) State the name...