Compare the maximum conversion time of an 8-bit digital ramp ADC with that of a successive approximation ADC both using a clock of 100 kHz.
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- Draw a symbol for a solid-state logic element AND.A 10-bit 5-V ADC operates with a sampling frequency of 1 MHz. If a linear histogram test is to be conducted on this ADC with a ramp signal of 15-ms duration, estimate the voltage resolution of this test.Compare the maximum conversion times of a 8-bit digital-ram p ADC and a 8-bit successive- approximation ADC if both utilize a 500-KHz and .l .5 MHz clock frequency.
- Develop the truth table and constellation diagram of QPSK using I -channel reference cos wct and 90 degrees phase shift for IQ inputs 00 and 10. Draw the analog output waveform of the given inputs2a. Assume a digital to analog conversion system uses a 10-bit integerto represent an analog temperature over a range of -25oF to 125oIf the actual temperature being read was 65.325oF, what would bethe closest possible value that the system could represent? 2b. What is the minimum sampling rate needed in order to successfullycapture frequencies up to 155 KHz in an analog signal?An analog signal having a maximum frequency of 10 kHz is being transmitted through a PCM system with a uniform quantizer having 256 levels. What will be the minimum transmission bandwidth of the transmitted PCM signal?
- A PCM system has the following parameters: a maximum analog input frequency of 4.5kHz, a maximum decoded voltage at the reciever of +-5V, and a minimum dynamic range of 60dB. Determine the following c) actual number of bits used in the PCM code (excluding the sign).a) Describe the main sources of errors in a measurement process and state how they may be avoided or reduced. b) List two sources of coherent interference and describe how each may be minimized or eliminated. c) An 8-Bit ADC is used to convert an audio signal ranging over 0 – 12 V. What is the RMS quantization noise associated with full-scale operation of this ADC?Explain the output response of a second order system.
- For an efficient communication in PCM system, the number of samples per second must be at most be equal to twice the highest modulating frequency.a. A very important considerationb. No, it must be at least equal to twice the highest modulating frequencyc. 80-50 percent trueDerive an equation for linear signal conditioning that will convert a sensor output voltage in the spanning the range 2.3 V to 4.6 V into a 0.00 to 2.5V spanA voice frequency channel, a signal voltage is 40mV and noise voltage is 40fV.What is the maximum data rate that can be transmitted if parameter resistances are equal?