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Ultra-low jitter generators 22.5792, 24.5760, 33.8688, 36.8640, 45.1584, 49.1520 MHz
Ultra-low jitter generators 22.5792, 24.5760, 33.8688, 36.8640, 45.1584, 49.1520 MHz
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Old 10th November 2017, 02:01 PM   #21
Vil is offline Vil
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Nice quality oscilators, got one , recommended.
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Old 3rd January 2018, 07:43 AM   #22
ZoSoNCSU is offline ZoSoNCSU  United States
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What is the average shipping time to the USA?
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Old 5th January 2018, 05:46 PM   #23
ZoSoNCSU is offline ZoSoNCSU  United States
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Can I get anyone to talk in detail about these oscillators vs Asia sourced "Golden" TCXOs by Vanguard and/or Crystek's mid-range (CCHD-575) and high-end (CCHD-957) I intend to do an indepth review of oscillators after my discrete op-amp reviews for Burson and Orange Amp. are finished. So if this offers something above the three mentioned, I might be interested!
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Old 22nd October 2018, 09:52 AM   #24
elfenthau is offline elfenthau  Germany
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Default Some measurements

Sorry to be a little bit late on this thread.

I made some jitter measurements with a couple of oscillators some month ago with
a Lecroy HDO6104 oscilloscope with their jitter module. Allthough i am still not shure how and
what that osci measured some comparison was possible.
I used differential probes and battery or a Hameg power supply for the oscillators.
So external noise should have been minimal.
All mentioned ps-values are TIE values if not noted otherwise.

I tested one TentLabs 33.8688Mhz, two Vanguard 33.8688 (gold), and
several oscillators from our old stock.
The Tent was really good one with appr. 2-3ps. It shows a jitter peak at appr. 6.277MHz
of appr. 4.3ps which may result from the internal PLL as Guido Tent told me.
This should not do any harm to audio.

I was really curious how the Vanguards would behave. Sorry.
Disapointing. Jitter showed up within a range of 40..70ps. Nevertheless
the Vanguards showed best frequency precision and stability of all measured oscillators.
Unfortunatelly this is irrelevant for audio.

I had an old dusty Hosonic 33Mhz oscillator from our stock here. This one performed as good
as the Tent. As this is a true pure crystal oscillator, it has no noticeable spurs as the Tent.

Interestingly the jitter did only rise by appr. 0.3ps when i used the Hameg HMP4040 switching power
for the oscillators. Feeding the differential probe from USB instead of batterie made jitter much worse.
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