Explain what is the power at the amplifier output

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Reference no: EM13139339

Amplifier

An audio amplifier has the following frequency response (transfer function):

At 20 Hz, gain = 28 dB.
At 50 Hz, gain = 35 dB.
At 100 Hz, gain = 38 dB.
At 10,000 Hz, gain = 38 dB.
At 12,000 Hz, gain = 35 dB.
At 15,000 Hz, gain = 28 dB

The gain of the amplifier is constant from 100 Hz to 10 kHz.

a. What is the 3 dB bandwidth of the amplifier, in Hz?

b. What is the 10 dB bandwidth of the amplifier in Hz?

c. A 1 kHz sine wave signal with a power level -10 dBm is applied to the input of the amplifier. What is the power at the amplifier output?

d. A 12 kHz sine wave signal with a power level -10 dBm is applied to the input of the amplifier. What is the power at the amplifier output?

Reference no: EM13139339

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