Read sections in the TTL data sheets pertaining to the 74LS112A Dual J-K flip-flop.

1. For the 74LS112A, what is the maximum clock rate, minimum pulse width for the clock’s high and low levels, worst case propagation delay of the outputs from the high-to-low clock transition, and minimum input setup time?

2. Design a nine-step counter to count in the following sequence. Use J-K flip-flops, NAND gates, and Inverters only.

0011, 0101, 1001, 1000, 1011, 1010, 0110, 0100, 0111, 0011, …

Include in the design a means for resetting the counter to 0011.

Provide a circuit diagrams, relevant truth tables, state diagrams and state table.

In addition, provide the excitation functions for the J-K flip-flops.

Determine the following by applying the Fourier convolution property to known Fourier transforms:

a. FT {? (t )} , where ?  (t ) = rect (t ) ? rect (t ) .

b. FT{? (t)cos(2pifct)}

c. FT{ rect( t )cos^2( 2pi*fc*t))

d. FT{rect(t)cos(2pif1t)cos(2pi f2t)}, where f2 >> f1 >1.

Explain the concept of operating point and how it is achieved with a common emitter amp, common source amp, and the op amp-based amplifiers (differentiator, integrator, inverting, and non-inverting amplifiers).

*I understand that the operating point of a transistor can be obtained by using the load line method( IV characteristics) but i don't know how to find the operating point specifically for the common emitter amp , common source amp, and the op amp-based amplifiers

1. Design a blinking LED with two speeds - slow and fast.

Specification

To change from slow to fast press Button 1 and fast to slow press Button 2.

Reset puts the machine to slow blinking.

entity blink is port (b1, b2, ck, reset: in std_logic;

z: out std_logic);

end blink;

Write a PLC ladder program to describe an application consisting of keeping constant the level of fluid in a fluid tank – if the level goes below a minimum, the fluid enters into the tank, and if the level goes above a maximum, inlet stops. Describe function of the program along with the inputs and outputs considered for the application?

Based on research on the digital light processor (DLP) chips. DLP chips have only been in production for several years, yet their manufacturer claims a "10-year plus" lifetime. These chips are micro-mirrors that move as much as 15 degrees, three times during a TV frame.

Question: Explain how the manufacturer could make such a claim when no one has had the chip for more than 4 years.

In the PIC18F452 Programming Model, list 2 registers that are used to access the Program Memory. Indicate their sizes.

Please compare drone technology to autonomous vehicles.

) Design a simple embedded system with PIC16F84A microcontroller (using 20MHz resonator). The system can drive a LED light on for 52.6ms on and 26ms off repeatedly. A watchdog timer should be enabled and have a time out period of 72 ms. Sketch the circuit and write the complete assembly program.

In C++

Demonstrate inheritance. Create an Airplane class with the following attributes: • manufacturer : string • speed : float Create a FigherPlane class that inherits from the Airplane class and adds the following attributes: • numberOfMissiles : short

Post a one paragraph summary about the different types of modulations used with modems. ( Pls no copy from the internet its just 1 paragraph )

1.15. Errors inherent in the device itself are called?

1) Application error

2) Characteristic error

3) Dynamic error

4) Sensitivity error

DSB:

Write the code for an m-file (script) to generate a DSB signal. The modulating (message) signal is a single tone signal with frequency 1kHz and the carrier frequency is 30kHz. Time Vector: 3001 points over range from 0 to 3ms (3 cycles of the modulating signal). Plot your original message signal both in time and its spectrum. (Note: use the cosine functions for your signals). In your report you should include the plots for the modulated signal in time and for the spectrum of the modulated signal.

AM:

For the same message signal and same carrier as in part a. write the code for an m-file to generate an AM signal. Do simulations for the following percentages of modulation: 1. 25% 2. 50% 3. 100% and 4.125%. In your report you should include the plots for the modulated signal in time and for the spectrum of the modulated signal for each of the 4 cases.

Discuss the results relative to the modulation index m.

SSB:

Use Matlab to implement a 4 pole-pair Butterworth band-pass filter to select the lower frequency component of the DSB modulated signal in part a. Plot the signal at the output of the filter in time and its spectrum.

Matlab filter responce and magnitude of filter question.

I have been working on this HW and I am not sure if I did something wrong. Here is my code.

%y[n]=x[n]+x[n-1]-x[n-4]-x[n-5];

%y[n]=y[n-1]-.9*y[n-2]+x[n]+x[n-1]

clear

clc

[x,fs] = audioread('toto.wav');

x = x(:,1);

dt = 1/fs;

t = 0:dt:(length(x)*dt)-dt;

plot(t,x); xlabel('Seconds'); ylabel('Amplitude');

num=[1 1 -.9];

den=[1 1 0 0 -1 -1];

sys=tf(num,den);

k=filter(num,den,x);

subplot(3,1,1);

plot(t,k);

title('filter response');

w=0:0.001:pi;

[h,om]=freqz(num,den,w)

m=20*log10 (abs(h))

an=angle(h)

subplot(3,1,2)

plot(om/pi,m)

title('mag spectrum of filter')

xlabel('freq')

ylabel('mag in db')

subplot(3,1,3)

plot(om/pi,an)

title('phase spectrum of filter')

xlabel('freq')

So I was playing around and when I use the 2nd equation at the top like in this code my filter response or the magnitude don't change. Why is that? Did I do something wrong? It doesn't even change if I change the values of the den either.

Say we have a transfer function that is H(s)= (2s^2-5s+3) / (s-1). Which of these statements is correct?

This system is stable, since one of its zeros is in the right-hand part of the s-plane

This system is stable, since one of its poles is in the right-hand part of the s-plane

This system is unstable, since its only zero is in the left-hand part of the s-plane

This system is stable, since its only pole is in the left-hand part of the s-plane

This system is stable, since one of its zeros is in the left-hand part of the s-plane

This system is unstable, since one of its poles is in the right-hand part of the s-plane

This system is stable, since its only zero is in the left-hand part of the s-plane

This system is unstable, since its only pole is in the right-hand part of the s-plane

All other answers are incorrect