In a post in the 'annoucements' forum, Tabitha asks, 'Have an Application Note idea?'
Not an idea, but perhaps some clarity. Section 3 of the Si514 data sheet is 'All-digital PLL applications,' and it refers to AN575: An Introduction to FPGA-Based ADPLLs.
The app note is pretty good, except for one thing: the source code isn't available. I opened a support request back in May 2012 to get that code, and was told, 'Unfortunately, the Verilog source code for that ADPLL is not ready for release, and we don't have the time or resources at present to finalize and support it.' I followed up by saying that I didn't need support, really, just to see what they were thinking. The final follow-up was that the code wasn't being released at that time.
So is there any way, 18 months later, to kick out that code, even if it's not ready for prime time?
I'm playing with an ADPLL concept based on the Si514 and I'm looking for ideas.