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<p>Look at a GPSDO GPS Disclipined Oscillator if you need more
accuracy (and more cost) <br>
<br>
<a class="moz-txt-link-freetext" href="https://en.wikipedia.org/wiki/GPS_disciplined_oscillator">https://en.wikipedia.org/wiki/GPS_disciplined_oscillator</a><br>
<br>
Some quick examples in the $50 to $80 range. 10 MHz<br>
<br>
<a class="moz-txt-link-freetext" href="https://www.digikey.com/product-detail/en/mikroelektronika/MIKROE-1032/1471-1009-ND/4495374?utm_adgroup=Evaluation%20Boards%20-%20Expansion%20Boards%2C%20Daughter%20Cards&utm_source=google&utm_medium=cpc&utm_campaign=Shopping_Product_Development%20Boards%2C%20Kits%2C%20Programmers_NEW&utm_term=&utm_content=Evaluation%20Boards%20-%20Expansion%20Boards%2C%20Daughter%20Cards&gclid=Cj0KCQjww_f2BRC-ARIsAP3zarGwf8Rd71SgPkxbg_0s2pf5COe-2X_HmcmN8cce9yr8Wgjz1RYF7v0aAn3cEALw_wcB">https://www.digikey.com/product-detail/en/mikroelektronika/MIKROE-1032/1471-1009-ND/4495374?utm_adgroup=Evaluation%20Boards%20-%20Expansion%20Boards%2C%20Daughter%20Cards&utm_source=google&utm_medium=cpc&utm_campaign=Shopping_Product_Development%20Boards%2C%20Kits%2C%20Programmers_NEW&utm_term=&utm_content=Evaluation%20Boards%20-%20Expansion%20Boards%2C%20Daughter%20Cards&gclid=Cj0KCQjww_f2BRC-ARIsAP3zarGwf8Rd71SgPkxbg_0s2pf5COe-2X_HmcmN8cce9yr8Wgjz1RYF7v0aAn3cEALw_wcB</a><br>
<br>
<a class="moz-txt-link-freetext" href="https://www.digikey.com/product-detail/en/sparkfun-electronics/GPS-11858/1568-1151-ND/5673737?utm_adgroup=RF%20Evaluation%20and%20Development%20Kits%2C%20Boards&utm_source=google&utm_medium=cpc&utm_campaign=Shopping_Product_RF%2FIF%20and%20RFID_NEW&utm_term=&utm_content=RF%20Evaluation%20and%20Development%20Kits%2C%20Boards&gclid=Cj0KCQjww_f2BRC-ARIsAP3zarGq8wQ9V83W1qbV6_vM8a6ndNj-zvWG1dwi5Rn1boW5lpTu2B_BTpkaAohUEALw_wcB">https://www.digikey.com/product-detail/en/sparkfun-electronics/GPS-11858/1568-1151-ND/5673737?utm_adgroup=RF%20Evaluation%20and%20Development%20Kits%2C%20Boards&utm_source=google&utm_medium=cpc&utm_campaign=Shopping_Product_RF%2FIF%20and%20RFID_NEW&utm_term=&utm_content=RF%20Evaluation%20and%20Development%20Kits%2C%20Boards&gclid=Cj0KCQjww_f2BRC-ARIsAP3zarGq8wQ9V83W1qbV6_vM8a6ndNj-zvWG1dwi5Rn1boW5lpTu2B_BTpkaAohUEALw_wcB</a><br>
<br>
No prices but you can find them probably on Mouser or Digikey. <br>
<a class="moz-txt-link-freetext" href="https://www.microsemi.com/product-directory/clocks-frequency-references/3826-gps-disciplined-oscillators-gpsdo">https://www.microsemi.com/product-directory/clocks-frequency-references/3826-gps-disciplined-oscillators-gpsdo</a><br>
<br>
Finally you can see what is at EBAY when looking for a 10 MHz
reference.<br>
<br>
<a class="moz-txt-link-freetext" href="https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2380057.m570.l1313.TR3.TRC2.A0.H0.X10+MHz+reference.TRS0&_nkw=10+MHz+reference&_sacat=0">https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2380057.m570.l1313.TR3.TRC2.A0.H0.X10+MHz+reference.TRS0&_nkw=10+MHz+reference&_sacat=0</a><br>
<br>
Kip<br>
<br>
</p>
<div class="moz-cite-prefix">On 6/4/20 9:55 PM, John Swindle via
DPRGlist wrote:<br>
</div>
<blockquote type="cite"
cite="mid:334325907.3046424.1591325755956@mail.yahoo.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div style="color:black;font: 10pt Arial, Helvetica, sans-serif;">Folks:
<div><br>
</div>
<div>What is the typical stability of the oscillator in a
consumer x86 platform?</div>
<div><br>
</div>
<div>I don't find that specified for systems, or I don't know
where to look for the spec. The part numbers on the crystal
often don't seem to be sufficient to find the stability in the
XTAL datasheet.</div>
<div><br>
</div>
<div>I don't have access to test equipment to measure it.</div>
<div><br>
</div>
<div>I appreciate any help, but just to be clear: I'm asking
about the stability, not the accuracy, so it would be ppm of
drift and/or jitter over time, not ppm of accuracy.</div>
<div><br>
</div>
<div>I intend to use the invariant TSC in x86 processors, but if
the oscillator is not stable, then the invariant TSC numbers
will not be as useful to me.</div>
<div><br>
</div>
<div>Thanks.</div>
<div><br>
</div>
<div>John Swindle</div>
<div><br>
</div>
</div>
<br>
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