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Independent of circuit details, for a digital input code of (b1, b2, b3, .... bn), the output of an n-bit digital to analog conversion output is of the form output = K (b1 + (b2/2)+ (b3/4)...+(bn/ 2^n-1))
For a particular 5 bit DAC the output voltage is 4.4 V when the input code is (1, 0, 1,1, 0).a) Determine the output voltage when the input code is (0,1,0,0,1).b) Determine the DAC full-scale output (when all input bits are high).c) Determine the DAC resolution (vo when the least significant input bit changes from 0 to 1).
Determine experimentally the value of a resistor that when placed across the battery will make a measurable change in measured battery voltage. Keep the voltage decrease from open circuit value to 10% or less.
Consider cold windy breeze parallel to your face, with an average facial dimension along the flow of 5 cm. The air velocity is 1 m/s (corresponding to 2.2 miles per hour). Assume laminar flow. 1) Calculate the thickness of the velocity boundary la..
electronic technology in relationship to the use of personnel and access control, surveillance, and identification of authorized personnel.
design a 7-tap band-pass FIR filter with linear phase response. The lower cutoff frequency is 2,500 Hz, and upper cutoff frequency is 4000 Hz. The sampling frequency is 10,000 Hz. What is the filter impulse response
A certain power amplifier with crossover distortion has the input/output voltage relationship vo (t) = vi (t)3 (2.39) a) Use example voltage values to show that this does not satisfy the relationship. b) Let vi (t) = sin (pi t) .
An altimeter can measure 0-100m; using a signal conditioner, this high position is distributed over a voltage range of 0-5V. If an ADC covering the same voltage range outputs 1000 0000, what is the distance measured
Sketch the amplitude spectrum of a DTMF signal with finite duration. You should make this sketch by hand, using the Fourier transform expression obtained in part 1). What happens to the DTMF spectrum when T is "too small"
a) Evaluate % overshoot, settling time and peak time if a=4 and b=25 b) Calculate values of a&b so imaginary part of poles remains same but real part increased by 2 times
A 230 V DC series motor has an armature circuit resistance of 0.2 and a eld circuit resistance of 0.1. At rated voltage, the motor draws a line current of 40A and runs at a speed of 1000 rpm.
Suppose we transmitted 5 cos wct for logic one and 15 cos wct for logic zero. Find the maximum signal energy. Design a demodulator and show the detection criterion for the output of the demodulator. Finally, find the bit error-rate.
Consider the following signal y[n]; y[n] = X1[n+3] * X2[n] The signals X1 and X2 are defined as X1[n]=((1/2)^n) u[n] X2[n]= ((1/3)^n u[n] Determine the Z transform of y[n].
Give the zero-input or natural response yn(t), in terms of constants K, and K2. Give the general form of the forced response y phi (t), in terms of a constant beta. Find beta and give the exact forced response y phi (t).
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