Timeline for High-stability oscillators (non-crystal)
Current License: CC BY-SA 3.0
28 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 14, 2012 at 5:02 | history | notice removed | BarsMonster | ||
| Mar 14, 2012 at 5:02 | history | bounty ended | BarsMonster | ||
| Mar 14, 2012 at 5:02 | vote | accept | BarsMonster | ||
| Mar 7, 2012 at 3:58 | answer | added | JonnyBoats | timeline score: 4 | |
| Mar 7, 2012 at 1:25 | answer | added | user3812 | timeline score: 1 | |
| Mar 6, 2012 at 17:57 | comment | added | The Photon | One thing to Google: coaxial resonator. Mostly used for frequencies above what crystals can easily do (500 - 2000 MHz). Another one is the SAW resonator (surface acoustic wave)...dunno if you consider that "crystal based" or not...also mostly used for higher frequencies. | |
| Mar 6, 2012 at 17:23 | comment | added | BarsMonster | @ThePhoton You know, credit from Stackexchange for 10% per year.... ;-) Actually I had 1852 before I placed these bounties, they are subtracted immediately. | |
| Mar 6, 2012 at 16:35 | comment | added | The Photon | @BarsMonster, You have opened two +500 bounties, but you only have 852 rep to give. How are you going to pay out on both bounties? | |
| Mar 6, 2012 at 14:26 | comment | added | BarsMonster | @clabacchio Well, I forgive you, you are right :-) | |
| Mar 6, 2012 at 12:23 | comment | added | clabacchio | @BarsMonster I've taken literally the non-crystal and high stability requirements: don't ask me more :) | |
| Mar 6, 2012 at 11:50 | history | tweeted | twitter.com/#!/StackElectronix/status/176998134017310720 | ||
| Mar 6, 2012 at 11:37 | comment | added | BarsMonster | @clabacchio Hehe, awesome photo, but MEMS also feels similar to crystal in terms of limitations. | |
| Mar 6, 2012 at 9:58 | comment | added | clabacchio | Check this article; that's all I can offer, but maybe it can help | |
| Mar 6, 2012 at 9:42 | history | notice added | BarsMonster | Draw attention | |
| Mar 6, 2012 at 9:42 | history | bounty started | BarsMonster | ||
| Mar 6, 2012 at 9:42 | history | edited | BarsMonster | CC BY-SA 3.0 |
added 278 characters in body
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| Mar 5, 2012 at 4:07 | comment | added | Kortuk | @BarsMonster, Put that in the question. | |
| Mar 4, 2012 at 18:48 | comment | added | BarsMonster | @Olin Lathrop i see, but if we do LC-opamp-LC-opamp-LC-opamp... so that any energy loss on each stage is recovered and we are getting narrower bandwidth? | |
| Mar 4, 2012 at 17:41 | comment | added | Olin Lathrop | I don't see how multiple L-C circuits is going to increase the Q to the level of what crystals do routinely. | |
| Mar 4, 2012 at 16:06 | comment | added | BarsMonster | @Olin Lathrop Hmm, wouldn't having multiple LC circuits do a better job? | |
| Mar 4, 2012 at 16:03 | comment | added | BarsMonster | @Kortuk - well, I need 'comparable to crystal' stability, so somewhere at +-10-100 ppm at the worst case. | |
| Mar 4, 2012 at 14:43 | comment | added | Olin Lathrop | Do the math. Look up Q of some crystals and then find what the series resistance of a inductor would have to be to match that in a L-C resonant circuit. | |
| Mar 4, 2012 at 7:59 | answer | added | Russell McMahon♦ | timeline score: 11 | |
| Mar 4, 2012 at 7:10 | comment | added | Russell McMahon♦ | Look at some of the amateur radio circuits (ARRL, RSGB, ...) , especially from a few decades back, where people valued wide range tunability plus stabiity and did some very clever things to achieve the best results they could get. Sme thing approaching a badly performed crystal, but with tunability, should be able to be achieved. | |
| Mar 4, 2012 at 6:51 | comment | added | Kortuk | @BarsMonster, the reason people use crystals is almost nothing compares for the price. You need to be more clear with your definitions. Engineers take so much training so that they can attach numerical values to what others use general language for(ie high precision being 1 part per trillion or 1 part per million, depending on your implementation). | |
| Mar 4, 2012 at 6:31 | comment | added | tyblu | leapsecond.com/ten/clock-powers-of-ten-tvb.pdf | |
| Mar 4, 2012 at 5:43 | comment | added | The Photon | What do you mean by "high-stability"? | |
| Mar 4, 2012 at 3:05 | history | asked | BarsMonster | CC BY-SA 3.0 |