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A binary PAM signal is generated by exciting a raised-cosine roll-off filter with a 50% roll-off factor and then DSB-SC amplitude modulating it on a sinusoidal carrier, as illustrated in Figure P-10.17. The bit rate is 2400 bps.
1. Determine the spectrum of the modulated binary PAM signal and sketch it.
2. Draw the block diagram illustrating the optimum demodulator/detector for the received signal, which is equal to the transmitted signal plus additive white Gaussian noise.
For each one of the 3 frequency responses, H(f), in parts (a), (b), and (c) do the following: i. Obtain the system's impulse response, h(t). ii. Indicate if the system is BIBO stable or not, and state why. iii. Indicate if the system is causal or not..
Plot the total impedance of the configuration of given figure versus frequency (100 kHz to 100 MHz) for the following parameter values:
Write a VHDL module to read a keyboard scan code and display the entire scan code string in hexadecimal on the VGA display using the VGA_SYNC and CHAR_ROM FPGAcores. It will require the use of the read and scan ready handshake lines and a small RA..
the bipolar transistor inverter circuit demonstrated below uses there a supply voltage of vcc 5v. ltbrgt
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The capacitator in the circuit is charged to 20 V at the time the switch is closed. If the capacitator ruptures when it'sterminal voltage equals or exceeds 20kV, how long does it take torupture the capacitator
A semiconductor, in thermal equilibrium, has a hole concentration of p0 = 2x10^16 cm^-3. The minority carrier life time = 3x10^-7 s. (Assume, ni = 10^10 cm^-3)
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The input impedance of a JFET used in COMMON SOURCE configuration, is defined by two considerations: The JFET itself has a VERY HIGH INPUT IMPEDANCE, because the input is the GATE to SOURCE junction that is REVERSE biased
Compare with the result in Figure 13.12b for the dielectric resonator case
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In the DC COMA shown below, apply Kirchhoff laws-Loop Analysis to find the current in each branch/resistor.
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