Hello,
We are considering designing this in to update a PCIe based product and would very much like to have a statement from the manufacturers about expected availability for the next five years in quantities of around 1K p.a. Are you able to get this on our behalf please?
Best Regards
Robert Phillips
Techncial Director
Greetings,
Please note the manufacturer’s product page indicates that the device in question is part of a product longevity program, also the conditions and qualifications that apply to said program.
Also, note that the device is being removed from the DigiKey inventory as a regularly-stocked item and that future orders will be subject to standard lead time constraints, currently indicated at 12 weeks.
My candid advice should one chose to adopt such a device would be to regard any forward-looking statements with skepticism, and maintain a buffer stock in your possession sufficient to support production for such time as you may require to re-design around an alternative.
Hi Rick,
Thanks for prompt and clear advice. As this part is being considered as a candidate to replace an obsolete part it sounds like it may not be a great
choice.
So far, I’ve not found very many potentially suitable parts so maybe I should post an enquiry on your website outlining the requirement and seeing if anyone can suggest other candidates?
Regards
Robert Phillips
No need for a separate thread, we can take the discussion up here if you like.
In the same sense that driving a Koenigsegg rather than a Ford makes spare parts harder to come by, general distribution sources aren’t likely to be especially flush with products of this type where consumption is likely dominated by a limited number of high-volume OEMs.
Manufactuers typically aren’t forthcoming with info about how much of what product they’re direct-shipping to whom, so corroborating statements about future production plans is difficult, particularly from the standpoint of one looking for 1K units a year, rather than 1K reels a year.
The only certain thing about the future is uncertainty. Striking the right balance between degree of mitigation and cost of mitigation is a large portion of what folks call “supply chain mangement.” Whether you pick Vendor A’s product that has a production assurance and limited distribution stock or Vendor B’s with no such assurances other than lots of product on our shelf today with good turnover… That’s a choice that’s yours and yours alone.
Still, one never can be completely sure that space aliens won’t invade and destroy the fab where they’re both made after lunch on Tuesday next…
Hi,
Here’s the basic requirements :-
We need a device to replace an obsolete PCIe Clock jitter reducer and Frequency Translator used on a PC plug-in card as part of its’ PCIe interface.
The basic functions we need are:-
a) Accept 100 MHz HCSL reference clock as input.
b) Generate a 125 MHz HCSL-compatible reference clock as output.
c) Have effective PLL bandwidth of at least 1 MHz, preferably greater, so device can follow a 5000pm dither that is often present on the input clock.
d) Output jitter spec : 20 pS cycle-to-cycle.
e) Only a single HSCL-compatible output is required, but if the device has more, that’s OK so long as unused output can be set into a power-down mode.
Thanks in advance for any help
Robert B. Phillips
Either the Clock Generator or the Application Specific Clock families would be the most likely places to find such things.
Check your email for a list of suggestions to consider, representing the condensate from those two families indicating HCSL in/out, PLL, and some other criteria.
Hi Rick,
Thanks for reply. I’ve tried both the links you suggest, but the Clock generator one does not allow any selection of the input-to-output ratio at all
and the second one doesn’t offer the 1:1.25 ( or 2:2.5 etc) selection that my application requires. I’m assuming here that input-to-output ratio refers to input-to-output frequency - is that correct?
Best Regards
Robert
Negative, the reference is to channel count. “Ratio” may not quite be the right word there, but it’s the one that got chosen.
