Question

An oscillator produces a power output of 1 mW. The following stages provide power gains as shown in the table.

Stage Power Gain
Buffer 0 dB
Predriver 10 dB
Driver 13 dB
Final 13 dB

What is the final power attained? (Enter your answer in watts.)

Answer 1

The final power attained is 400mW.

Step-by-step explanation:

To calculate the final power attained, we need to calculate the total power gain by adding up the power gains of each stage. The power gains in decibels (dB) need to be converted to a linear scale using the formula:

Linear Gain = 10^(dB/10)

Applying this formula to each stage, we get:

Buffer Power Gain: 10^(0/10) = 1

Predriver Power Gain: 10^(10/10) = 10

Driver Power Gain: 10^(13/10) = 20

Final Power Gain: 10^(13/10) = 20

Finally, the final power attained is the product of the power output of the oscillator and the total power gain:

Final Power = Power Output * Total Power Gain = 1mW * 1 * 10 * 20 * 20 = 400mW