Re: Thinking about a 80MHz crystal - as a detector



Winfield Hill wrote:
Fred Bloggs wrote...

Looking at crystal models, the loss-resistance element may
be on the order of 10 ohms, which implies a Johnson noise
density on the order of 0.4nV per root-Hz.

Prove it- what makes you think it is Johnson noise, because
it is represented as a resistor symbol?


Acckk, how am I going to do that? I'm making an assumption.
Maybe someone else can give us an answer, references, etc.



It's back to basics for you. The book by Nye on the physics of crystal should have the answer. Physical Properties of Crystals, Oxford, still going through late editions, will be in nearly any technical library.

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