SMD oscillators for digital audio

[Lorien]

Hello,
perhaps this question was stated elsewhere but I didn't find any clue where it might be. It's about oscillators, most important, the source where it can be bought.
In the past days, I've working to design one simple PCB for an USB to I2S app. My very first and obvious intention was to to use crystal based oscillators, namely: 22.5792 Mhz and 24.576 Mhz. Preferably (but not limited to...) TCXO parts.
Consulting various forums and posts, I've come to conclusion that, among other valid options (?whatever that means), NDK's NZ2520SD parts are (from theory) the best I can have for this purpose. After over one week of emails and questions to various "authorised" NDK distribuitors across Europe listed on their web page... I came to conclusion that my chances to aquire these parts (less than 50) in EU zone are minimal to zero. So, here is my question: There si anyone who knows how to aquire these crystal - based oscillators? Or: there are other alternatives to these parts (regarding phase noise / voltage supply and perhaps price). Please note that the package dimensions aren't important.. just to remind you, I don't like bricks, unless there's rubidium inside ! In addition, the parts mentioned above are prety small but I can handle it so, something similar will not be an issue.
Thank you for your time reading my post,
L

[jean-paul]

Hi, if you like rubidium clocks: there is one Datum 10 MHz version doing nothing at my desk. İf you are interested we could trade for parts.

[theAnonymous1]

What about the Crystek C3391?

Am I right in seeing the NZ2520S has 10x less jitter though? It's hard for me to tell since one gives phase noise and the other gives RMS jitter (and I'm a noob).

The CS3391 says 0.5psec, but I think the NZ2520S is 0.055psec.

Is this phase noise conversion correct?

[Lorien]

Thank you for posting!
@jean-paul: I was sarcastic about rubidium I know that are very good oscillators but are way too expensive for what I want to build (their price is at least three times larger than total cost of my entire application). Besides that, 10MHz is not a valid freq. for me... though I thank you for your intention and suport!
@ theAnonymous1: I know about Crysteks but it's harder for me to buy it in EU. Farnell has some parts, mostly VCXOs - useless. 22.5792Mhz freq is what it kills me mostly! In fact, 24.576MHz oscillators are prety easy to find!
Today I'll look @ Mouser for c3391-22.5792 MHz. I hope those oscillators are accessible in small quantities (<= 100pcs.).
NDK story: still no official answer from any of them. It becomes ridiculous while time is passing and chances to answer are fading accordingly!
L

[theAnonymous1]

Originally Posted by Lorien

Today I'll look @ Mouser for c3391-22.5792 MHz. I hope those oscillators are accessible in small quantities (<= 100pcs.)

It looks like the minimum order amount for that frequency is 360pcs.

For some reason 22.5792MHz XO's are rare (and expensive too).

[Huntingdon 361]

Try IQD - they are the experts in crystals and oscillators. They've always been very helpful to me.

IQD Worldwide Frequency Control Products | Quartz Crystals, Clock Oscillators, OCXOs, Programmables, SPXOs (Clocks), TCVCXOs, TCXOs, VCTCXOs, VCXOs

[Lorien]

yeah... they hit me with 360 pieces! Huh! what should I do with so many of them: seed into the ground?
@ Huntingdon 361: thanx mate! I'll contact them and see if I could get some useful infos. Still, do you have any sugestions?.. perhaps a family serial number (maybe with 22.5792 MHz freq). I'll look this weekend into their offer.
L

[fff0]

check this out: MicroSD Memory Card Transport Project

[theAnonymous1]

Originally Posted by fff0

check this out: MicroSD Memory Card Transport Project

It looks like he is using the NZ2520SD for the 22.5792MHz clock and he says they were purchased from chip1stop - One Stop Shopping Procurement Service for Electronic Components - for 18USD each.

That's still rather expensive for a XO type that only cost a few dollars when bought in other frequencies. I don't get it.

[fff0]

Hi,

Do you mean NZ2520SD in other frequencies like 16.9344Mhz cost a few bucks only?