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S-R flipflops have a forbidden state that makes them hard to use. Some designers switched to the following flipflop instead.
For a causal LTI system what can you say about the poles of the z transform and the boundary of the region of convergence.
The user is prompted to enter an integer between 1 and 1000. When the user enters the integer, the program uses a repetition control structure.
The forced or damped frequency of oscillation, and the natural or undamped frequency.
What are the respective advantages and disadvantages of the asynchronous and synchronous communication modes from a reliability perspective?
From a given z transform X(z) = {1- z^-10}/{1 - z^-1} the discrete time domain form x(n) is deduced using complex manipulation and inverse transforms.
A Moore sequential circuit has one input and one output.The output goes to 1 when the input sequence 111 has occurred and the output goes.
If the radio in part (e) above receives a signal with power -100.0 dBm, what is the CNR (carrier to noise ratio) in the receiver?
A 12 kHz sine wave signal with a power level -25 dBm is applied to the input of the amplifier. What is the power at the amplifier output in dBm?
If the spectrum suddenly changes to have zeroes at 5 kHz, 10 kHz, 15 kHz, etc, what is the new pulse width?
The maximum frequency of the baseband audio signal is 10 KHz and the bandwidth allocated to the FM audio signal is 100 kHz.
How are the left (L) and right (R) signals obtained separately in the radio receiver to drive the dual channel audio amplifier and speakers?
How much additional rain attenuation can occur when the link is using QPSK modulation, compared to 16-QAM?
The signal could have been sent using DSB-LC modulation. What bandwidth would be required to transmit the signal with DSB-LC?
The bit rate on the link needs to be increased to a T1 rate of 1.544 Mbps. What change must be made to the transmitted signal?
A receiver of the CDMA signal has a C/(N+I) ratio of -8.0 dB at its input. What is the CNR at the output of the correlator, assuming ideal operation?
Each burst transmission from each earth station starts with a 176 bit sequence called CBTR. What is the purpose of CBTR?
Improving the floating point ALU to one which cost 4.5 times the original and would treble the performance of the ALU.
If the SNRQ were to be raised to 96 dB, how many bits would the ADC and DAC need? What would be the bit rate on the serial link?
Name two techniques used to compress digital video. Why is compression particularly important for the transmission of digital video signals?
The microwave link in the question above is modified to increase the capacity of the link by adding more channels to increase the transmitted bit rate.
Find the poles and the zeros of X(z) and plot them on the z-plane. Is there a pole or zero at z=1? Explain.
Let x(t) = e^(j*pi*t/4). Find the corresponding system output y(t). Does the eigenfunction property hold? Explain.
Figure shows the response of a first-order filter to a step input. Estimate the half-power cut-off frequency of the filter and sketch its frequency.
Design a bandpass filter of 'Sallen and Key' topology and having the following characteristics fo = 3.3 kHz, Q = 2.2.