Question

A Low Noise Amplifier (LNA) has an input/output relationship given by v₀=10vᵢₙ – 0.2V³ᵢₙ; assuming an input of the form Vᵢₙ = = A[cos(W₁t) + cos(W₂t)] mV find the input and output third order intercept point (IIP3, OIP3). Note that power is proportional to square of the amplitude.

Answer 1

To find the input and output third order intercept point (IIP3, OIP3) of a Low Noise Amplifier (LNA) with a given input expression, you need to calculate the third-order harmonic distortion.

Step-by-step explanation:

To find the input and output third order intercept point (IIP3, OIP3) of a Low Noise Amplifier (LNA) with an input of the form Vin = A[cos(W₁t) + cos(W₂t)] mV, you need to calculate the third-order harmonic distortion.

1. First, we need to find the third-order harmonic distortion component, which is the term 0.2V³in in the input/output relationship of the LNA.
2. Next, substitute the given input expression into the third-order term to obtain the third-order harmonic distortion component as a function of time.
3. Use the power proportional to the square of the amplitude to calculate the input and output third order intercept points.

By following these steps, you will be able to find the input and output third order intercept points (IIP3, OIP3) of the Low Noise Amplifier (LNA).