Talk:Frequency synthesizer

Content moved

Content of this article and the talk page have been moved from this page containing a typo in the title "Frequency synthesiser" to a new page with correct spelling "Frequency synthesizer".--Mike Sorensen 10:32, 20 April 2007 (UTC)

Through some complicated process that I can't follow, that improper copy-pasta move was undone. It's hard to tell whether the article started out in British English, or what, but it's been stable for a decade, so that's good. Dicklyon (talk) 19:52, 5 February 2017 (UTC)

Trial-and-error?

The section on trail-and-error methods seemed very odd, so I got the book by Kroupa, and looked at where our section came from (this edit in 2008). I'd say get rid of it. It's just Kroupa bragging that before his 1973 book was chaos. Might be slightly true, but he's really not a reliable source on his own impact. And Kroupa doesn't credit Gardner (though I agree Gardner's book was the more inflential; I certainly used Gardner's book, not Kroupa's, when doing DDS in '75). And the reference is poor, with wrong page number for the trial-and-error bit and no article title for the page 3 article. Ditch it? Dicklyon (talk) 07:27, 5 February 2017 (UTC)

I cleaned up that whole section a bit. Dicklyon (talk) 19:35, 5 February 2017 (UTC)

Digiphase and fractional-N

Don't have any books at home on this, and the Google snippets are tantalizing - is fractional-N the same as "digiphase" or a development from it? --Wtshymanski (talk) 20:23, 4 May 2017 (UTC)

Good question. My library does not have anything about Digiphase, so I don't have an answer.

• http://ieeexplore.ieee.org/document/1536703/ teaser suggests Digiphase is fractional N
• http://www.radio-electronics.com/info/rf-technology-design/pll-synthesizers/fractional-n-synthesis.php

  suggests the same, and states, "The accumulating phase error can be cancelled out - a method that was patented by Racal in a scheme they referred to as Digiphase."

Glrx (talk) 19:06, 11 May 2017 (UTC)