Asynchronous I2S FIFO project, an ultimate weapon to fight the jitter

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#8,661
Drive Shaft said:
Now, Ian is putting in extra work to roll out SC-PURE
Click to expand...
I am learning so much! I will dive more into SC-Pure and how that work. I also saw a post with this pic (https://www.diyaudio.com/community/...fight-the-jitter.192465/page-422#post-7335261)

1686464171353.png


Is this also an unreleased board?
 
#8,662
I have no comment on the RFX OXCO board as I stayed away from this site until Supply Chains normalised. And Ian is spitting out new products left and right, I can't keep up.

But you can check out this site to get a better clock foundation:

http://blog.dddac.com/the-clock-reviews-part-5/

Again, RFX OXCO and SC-PURE too new to be apart of the reviews.

IMO, I would never consider:
CCHD957
Accusilicon

I can only dream. In another lifetime:
Pulsar

No Comment:
RFX OCXO
SC-PURE

Seems interesting, but Andrea is Gold Standard:
Neutron star

I have this, so nothing else needed since my preferred frequency is 5.68 MHz which is the best performance you can get for Redbook along with pure 16-bit that only Ian's chain can provide:
Drixo

I'm interested in SC-PURE because I'm curious how the Pulsar would of sounded. Also, my primary Drixo Rig will be upgraded to Q7/TPII so the Q3/TPI is freed up. It will be a pure battery-powered DDC. So, it's kind of planned obsolescence to have a secondary transportable battery-powered Ian Rig with a clock better than Pulsar. Crossing Fingers.

I'm in Heaven. The performance of a Drixo for Desktop then the performance of a battery-powered DDC with better than Pulsar clocks when I'm away from the Desktop or Traveling in Hotels. But everyone has to weigh their own cost/benefits so maybe RFX OCXO may filter up especially if it outperforms the Neutron?
 
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#8,663
Hello,
SC-pure is possible going to be a major breakthrough because it will be much easier to use. Reducing the number of circuit boards and all the cables needed to connect them all together looks like a big advantage to me.
The SC -pure will be fed from the same supply as the clean supply of the Q7. It could be that something will pop up to give the clocks a separate supply. Why keep it simple??
Maybe use four and not two supercaps with your latest Uc Pure mk3.
Of course different brands will have different sounds. I wanna try the Skeleton brand. Anyway get them from an official distributor.
Greetings, Eduard
 
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#8,664
Good luck on Summer Project UcPure Builds. I'll check back in a month after Independence Day.

I noticed I'm not paying much attention to detail in this hobby and a bit rusty, so I'm vulnerable to making easy mistakes.

For example, it should be 5.6448 MHz not 5.68 MHz.

Making a easy mistake assembling Super Caps would be no fun.

So I'll focus and try to report back that a Simp like myself can put together a UcPure as Ian makes it somewhat dummy proof and straightforward.

I can't stop thinking about the SC-PURE and RFX OXCO now.
 
#8,667
iancanada said:
Hi Guys,
I spent a whole weekend in the hospital. Now, I was discharged and fully recovered. I'm sorry for my absence.
I apologize for keeping you waiting. I'll start a new GB2023 in GB section for SC-Pure and many more.

Ian
Click to expand...
So sorry to hear this Ian but very pleased to read you have fully recovered. Don’t over work yourself and hope you keep well….. take care
 
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#8,668
Ian, hope you're doing well. I had a few questions on the new GB items:

  • Will SC-PURE 22/24 clock speeds work with FifoPi Q7 and your 9038 DAC Hat or only 45/49?
  • Is it possible to connect a UCPure MKIII with an MKII to take advantage of the MKIII's sync feature? If you were to use two MKIII's, would both need to be connected to the Q7 or is there another way to connect them?
 
#8,671
stew1234 said:
Ian, hope you're doing well. I had a few questions on the new GB items:

  • Will SC-PURE 22/24 clock speeds work with FifoPi Q7 and your 9038 DAC Hat or only 45/49?
  • Is it possible to connect a UCPure MKIII with an MKII to take advantage of the MKIII's sync feature? If you were to use two MKIII's, would both need to be connected to the Q7 or is there another way to connect them?
Click to expand...
Thanks stew1234

  • Will SC-PURE 22/24 clock speeds work with FifoPi Q7 and your 9038 DAC Hat or only 45/49? Yes, SC-Pure works for both Q7 and 9038 Q2M DM.
  • Is it possible to connect a UCPure MKIII with an MKII to take advantage of the MKIII's sync feature? If you were to use two MKIII's, would both need to be connected to the Q7 or is there another way to connect them? UcPureMkII doesn't have the SYNC charge feature. MkII's SYNC control ports was designed as a control chain. The first UcPureMkIII need to be connected to Q7 (or later MonitorPiPro), while the second UcPureMkIII SYNC port just need to be connected to the first one. To get the most out of good clocks, UcPure is kind of must.
 
#8,672
I am going to setup a workbench and was wondering some of the equipments I may need. So far i have these in mind

workbench
signal generator
dc power supply
multimeter
osciloscope (maybe)
soldering iron

Can someone with experience please share, for these projects (testing and building power supplies), adding new clocks, what all would be needed ? Which ones can be bought second hand and which should be bought new (for safety reasons)?
 
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#8,673
@NeoTheOne to be honest if you are building solutions with only Ian's modules you really don't need many tools. Preparation is key by reading the manuals a few times and make sure you are really clear. label the PSU inputs as some are 5v others are 3.3v and many have destroyed modules making mistakes here!

The basic needed are:

workbench/desk/kitchen table etc
dc power supply - not mandatory
multimeter
soldering iron
basic set of small tools to allow assembly of the modules

I like to have a very cheap and simple audio system on my workbench to allow testing to ensure it is working before I move the kit to the main HiFi.
 
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#8,674
Hello,
A high quality screwdriver set deigned for electronics is a good investment.
A soldering station with different shapes of tips. Maybe a secondhand weller?
A desoldering station is also a nice tool.
For the use with stand off in the kits better have some small seize quality tools.
Good and enough light is also crucial!!
Most multimeters will have enough quality. You need the right cables with the right tip ( sometimes you need a really small tip of uncovered metal to reduce the chance of creating a short circuit) I think brands like Hirshmann
And you will need the tool for the Hirose ufl connectors.
Greetings, eduard
 
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#8,676
@NeoTheOne, Here are some of mine, I've found indispensable (some already suggested);

  • A good set of nut drivers (2.5mm, 3.00mm, 4.0mm, 5.0mm and 5.5mm) preferably ones with long shanks to accommodate standoffs.
  • A multi-length kit of additional brass standoffs.
  • A good Hakko soldering station.
  • You don't need a Fluke DMM. Check out the UNI-T, Model UT61E+ (Amazon)
  • Small supply of soft, silicone hook-up wire, 16, 18 & 20 gauge (This is used in RCs, but it's great for audio too.)
  • A cordless Dremel tool, if planning on doing light case work.
 
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#8,678
Conversely, lower clock speeds have been found to have lower phase noise in certain circumstances. The Andrea oscillators using lower speed crystals have been measured with lower phase noise than the higher speeds. The trade off is you need frequency doublers to bring the speeds up to support certain music sample rates. Not sure if the same would apply here but would be interested in Ian’s view.
 
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