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Old 09-26-2010, 01:40 AM
SeaMonkey SeaMonkey is offline
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Join Date: Jul 2010
Location: Dystopia Amerika
Posts: 287
Originally Posted by Aaron View Post
If we get back on topic:

Can we just start out with a 120MHz crystal oscillator to start with instead
of having to to run a 20MHz one through a doubler than tripler?

The diagram is from 1989 so maybe 120MHz ones weren't available then
but doing a short search, it seems there are 120MHz crystals available.

Is there any reason we can't start with a 120MHz one?
There are physical limits to the frequency of oscillation
of the quartz crystal. In order to obtain the best possible
accuracy and stability frequency multipliers are a

This Wiki article is quite comprehensive.

Last edited by SeaMonkey; 09-26-2010 at 01:41 AM. Reason: Modification
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