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Given 100-MHz clock signal, derive a circuit using D flip-flops to generate 50-MHz and 25-MHz clock signals. Draw a timing diagram for all three clock signals, assuming the flip-flops introduce no delay.
The campus bus uses an embedded system that tracks the number of passengers getting in and those getting out of the bus. Two circuits with laser photodiodes, connected to RB0 (getting in) and RB1 (getting out), are used to track these numbers.
1- Draw a circuit whose output goes to + V sat . When the input signal is below -4V. the output should be -V sat, when the input is above - 4V 2- Design a - 90 phase shift circuit at 1590 Hz , Then for your design calculate 0 at 15 Hz, & 15 KHz
Assume a CDMA system has only 4 walsh codes. If the mobile is assigned W4 and receives a data stream of 11011010, what is the output?
An 8-bit DAC outputs a value of 9.961 V when the input is FF (hexadecimal). What is the output when the input is 5A (hexadecimal)
Design a buck converter that has an output of 12 V from an input of 18 V. The output power is 10 W. The output voltage ripple must be no more than 100 mV p-p. Specify the duty ratio, switching frequency, and inductor and capacitor values.
Assuming that a 12-bit ADC channel accept analog input ranges from 0 to 20 volts, determine the following a) number of quantization levels b) step size of the quantizer or resolution
A robot arm must be able to extend 24 in. horizontally in 2 s while carrying a load of 10 lb. How much force is required, assuming the arm is accelerating all the way
Two teams of workers assemble automobile engines at a manufacturing plant in Michigan. Quality control personnel inspect a random sample of the teams assemblies and judge each assembly to be acceptable or unacceptable.
Traffic lights are being converted from incandescent bulbs to LED arrays to save operating and maintenance costs. Typically each incandescent light uses three 100-W bulbs, one for each color R,Y,G,A competing LED array consists of 61 LEDs.
Suppose it is known that an analog signal varies between -3V and + 3V, but we require the range of this signal to be changed so that it varies from 0 to 5V in order to meet the input range of an analog/digital converter circuit.
A 3-phase short circuit occurs at the 240-V terminals of the receiving -end transformers. Compute the steady-state short-circuit current in the 2400-V feeder wires, in the primary and secondary windings of the receving-end transformers, and at the..
First draw the transmit con-stellation and the receive constellation with ideal phase tracking and sampling. Note:they are obviously the same constellations. Now, assume that receiver synchronization is off by a phase angle.
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