Some articles on frequency, reference, reference frequency:
... and the feedback input to the phase detector to produce a frequency synthesizer ... but expensive, quartz crystal–controlled reference oscillator ... Some PLLs also include a divider between the reference clock and the reference input to the phase detector ...
... This input is called the reference ... loop uses a digital phase detector it may also have a divider in the feedback path or in the reference path, or both, in order to make the PLL's output signal frequency a rational ... A non-integer multiple of the reference frequency can also be created by replacing the simple divide-by-N counter in the feedback path with a programmable pulse swallowing counter ...
Famous quotes containing the words frequency and/or reference:
“One is apt to be discouraged by the frequency with which Mr. Hardy has persuaded himself that a macabre subject is a poem in itself; that, if there be enough of death and the tomb in ones theme, it needs no translation into art, the bold statement of it being sufficient.”
—Rebecca West (18921983)
“A sign, or representamen, is something which stands to somebody for something in some respect or capacity. It addresses somebody, that is, creates in the mind of that person an equivalent sign, or perhaps a more developed sign. That sign which it creates I call the interpretant of the first sign. The sign stands for something, its object. It stands for that object, not in all respects, but in reference to a sort of idea, which I have sometimes called the ground of the representamen.”
—Charles Sanders Peirce (18391914)