The input noise to a system equals -110 dbm and the spurious free dynamic range (sfdr) equals 100 db. If the gain equals 20 db then the input third order intercept (itoi) in dbm equals

Respuesta :

Noise is defined as any undesired sound that is deemed unpleasant, loud, or disturbing to hear.  The value of ITOI is 20dB.

What is Noise?

Noise is defined as any undesired sound that is deemed unpleasant, loud, or disturbing to hear. There is no difference between noise and desirable sound in terms of physics, as both are vibrations across a medium such as air or water. The distinction occurs when the brain hears and perceives a sound.

The following data is been known,

  • The input noise = -110 dB
  • The spurious-free dynamic range (sfdr) = 100 dB
  • Gain = 20 dB

The SFDR mean the spurious-free dynamic range, it is the ratio of the fundamental signal to the strangest spurious signal in the output.

[tex]D_R_f(dB) = \dfrac23(P_3-N_o)[/tex]

where P₃ is the third-order intercept

N₀ is the noise power

So, ITOI (Third-order Intercept Point which is equal to 20dB)

Hence, the value of ITOI is 20dB.

Learn more about Noise:

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