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Design a multi-stage audio amplifier for delivering an average power of 400 mW to a 16 Ohm speaker from a microphone that produces a 10 mV peak sinusoidal signal and has a source resistance of 1 kW. Use standard NPN QN2222 for your design. Analyze the frequency response for the amplifier as well. Design such that the upper 3 dB frequency is at least 100 kHz, and lower cutoff frequency below 20 Hz. Input resistance needs to be atleast 10 k?
Telephone channels and PCM analysis, The analog to digital converter (ADC) used in a telephone system outputs 8 bit words. The digital words are transmitted as a serial stream to form a PCM voice signal
A 20V voltmeter with a sensitivity of 10,000 ohms / volt rating and a 5A ammeter are used to measure the power being dissipated in a dc circuit. The voltmeter reads 13V and the ammeter 2.1A.
The fiber has a loss of 0.25 dB/km, and there is a splice with a loss of 0.1 dB every km. The coupling loss at the receiver is 0.5 dB, and the receiver uses an InGaAs APD with a sensitivity of -39 dBm. Find the system margin.
A tollgate (vending machine) controller accepts only nickels (5c), dimes (10c), and quarts (25c), and generates control signal to actuate the lever to open the tollgate (or dispense a chosen item in case of vending machine) once 35c or more are re..
Describe your understanding of the similarity and differences between MOSFET and BJT, in terms of 1) terminal behavior, 2) i-v characteristics, 3) amplifier configuration, 4) small-signal equivalent models and 5) biasing technique.
Compute the basic checksum, the 1's complement checksum, and the 2's complement checksum for each of the following groups of 8-bit data elements using both the basic calculation of the datasum and the one's complement datasum.
A random variable X is normally distributed with mean u = 10 and standard deviation sigma = 1.5. Find the following probabilities: A. P(8 or equal 8.5).
Convert both numbers to 4-bit values, take the 2's complement of 9 and add them. What happens to the carry out How does that compare with what happens when you subtract 8 from 9
A tree-phase, 60Hz, 5MVA synchronous generator has balanced line-to-line voltages of 8320V at its terminals. if the generator is supplying power to delta-connected, balanced load of 5MVA at a 0.8 lagging power factor
The capacitor has to have the following specifications: Needs to provide 100 horsepower for 10 hours Max operation voltage of 480V The min and max for the dielectric and metals are: 10 nm
Write the VHDL architecture file for a J-K flip-flop that toggles on each falling clock edge. Use J and K for the inputs, Q for the output, and CLK for the clock. All signals are BIT type.
How much hydrogen would be needed to give the car a range of 300 miles if the source of electricity is an on-board fuel cell with an efficiency that is 50% of the ideal?
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