iVenky
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Hi,
I am reading the oscillator chapter in RF Microelectronics textbook by Razavi. I have one question that is bothering me for a long time that I am not able to completely understand. In the chapter on oscillator when he is talking about Conversion of Additive Noise to Phase noise, he considers
x(t)=A cos(wot)+a cos(wo+Δw)t
Where the second term is the additive noise component.
He says that after passing the above signal through a limiter (so that amplitude noise component gets suppressed), we get the following FM (or PM) signal at the output of the limiter.
xlim(t) = (A/2) cos wot - (a/2) cos(wo+Δw)t + (a/2) cos(wo-Δw)t
I am able to understand the second and third terms of the above equation, but I don't understand how we are specifically getting (A/2) (in (A/2) coswot) . I mean why is it half of A? This has been bothering me a lot
Thanks in advance
I am reading the oscillator chapter in RF Microelectronics textbook by Razavi. I have one question that is bothering me for a long time that I am not able to completely understand. In the chapter on oscillator when he is talking about Conversion of Additive Noise to Phase noise, he considers
x(t)=A cos(wot)+a cos(wo+Δw)t
Where the second term is the additive noise component.
He says that after passing the above signal through a limiter (so that amplitude noise component gets suppressed), we get the following FM (or PM) signal at the output of the limiter.
xlim(t) = (A/2) cos wot - (a/2) cos(wo+Δw)t + (a/2) cos(wo-Δw)t
I am able to understand the second and third terms of the above equation, but I don't understand how we are specifically getting (A/2) (in (A/2) coswot) . I mean why is it half of A? This has been bothering me a lot
Thanks in advance