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Asynchronous I2S FIFO project, an ultimate weapon to fight the jitter
Asynchronous I2S FIFO project, an ultimate weapon to fight the jitter
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Old 17th April 2013, 01:24 AM   #2681
nvduybom is offline nvduybom  Viet Nam
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Can I use battery 6v for dual xo clock ?, it is safe?
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Old 17th April 2013, 03:04 AM   #2682
iancanada is offline iancanada  Canada
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Asynchronous I2S FIFO project, an ultimate weapon to fight the jitter
Quote:
Originally Posted by nvduybom View Post
Can I use battery 6v for dual xo clock ?, it is safe?
I'v been using it for a long time. Should be safe. Just be careful the real voltage after fully charge.

Ian
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Old 17th April 2013, 03:05 AM   #2683
iancanada is offline iancanada  Canada
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Asynchronous I2S FIFO project, an ultimate weapon to fight the jitter
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Originally Posted by dvb-projekt View Post
Hi Ian,

i have posted a few informations in my blog about my source
Thanks dvb-projekt, will try the link.

Regards,

Ian
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Old 17th April 2013, 03:52 AM   #2684
qusp is offline qusp  Australia
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be careful they arent grey market, well what am I saying, they ARE greymarket seconds, but they may still be OK for our uses and may be perfectly legit, they state the B stock or A stock as a choice, so they seem on the level. the only way to know for sure is to test their impedance

the problem for us is they will not ship to us, or at least not to me, they dont carry lifepo4 on airplanes for some time now, only fedex and DHL will take it afaik, pity the price is good for legit 2500ma and they have some nice high current connectors too. maybe we can all work something out together?
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Old 17th April 2013, 05:09 AM   #2685
dvb projekt is offline dvb projekt  Germany
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Asynchronous I2S FIFO project, an ultimate weapon to fight the jitter
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Originally Posted by qusp View Post
the problem for us is they will not ship to us, or at least not to me, they dont carry lifepo4 on airplanes for some time now, only fedex and DHL will take it afaik, pity the price is good for legit 2500ma and they have some nice high current connectors too. maybe we can all work something out together?
Hi qusp,

they will ship all orders via DHL worldwide. If you like, you could order

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Old 17th April 2013, 05:47 AM   #2686
qusp is offline qusp  Australia
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no, not according to their website I cant and not a chance i'm paying anything like that. I already have 16 of the legit 2300mah cells and have for quite a while (bought direct from A123 18 months or so ago when they were still selling samples to OEMs). I have the older M1A version, not M1B, so I was just going to grab 4 of the 2500 just because everything else between the cells is pretty similar; slightly lower internal resistance too, but an amount that is likely to be overwhelmed by lead resistance and inductance anyway. I also like the look of the Xt90 high current connectors they have for use with the batteries and as a high current ground buss connector. the 2 cell frame/holder is cool too, but i'm not desperate or crazy.

perhaps DHL dont carry them anymore either. the cart is only just over 45EU before VAT, so that 192 is a potential shipping cost I guess, but one that is not allowed. its problematic to ship lifepo4 anywhere these days, all because of dodgy lion and lipo explosions/fires, lifepo4 are much safer as far as stability wrt thermal runaway

Quote:
Your basket contains 14 items

€ 192.85 and still get no shipping costs
There is unfortunately no shipping available.

Last edited by qusp; 17th April 2013 at 05:55 AM.
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Old 17th April 2013, 05:50 AM   #2687
hochopeper is offline hochopeper  Australia
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Originally Posted by qusp View Post
no, not according to their website I cant and not a chance i'm paying anything like that. I already have 16 of the legit 2300mah cells, the older M1A version, not M1B, I was just going to grab 4 of the 2500 just because everything else is pretty similar, I also like the look of the Xt90 high current connectors they have and the 2 cell frame/holder, but i'm not desperate or crazy.
If you do order, please let me know first
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Old 17th April 2013, 06:42 AM   #2688
dvb projekt is offline dvb projekt  Germany
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Asynchronous I2S FIFO project, an ultimate weapon to fight the jitter
Exclamation International orders at Lipopower Ltd.

I had spoke to Mr. Hofmann about the international shipping, before i post the recommendation in my blog.

He assert that he will ship international. So please send him a mail with your inquiry. You will get an offer outside his e-shop calculator.


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Old 17th April 2013, 12:16 PM   #2689
regal is offline regal  United States
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What's wrong with the generic lifepo4? I've been using "grey" market 18650's for years, I seeit is the same factory making them without the advertising/management overhead. Battery's are a commodity anyway. We call it Lean manufacturing in the US. I don't see how they could have the same voltage curve as A123's if they were somehow defective.

Last edited by regal; 17th April 2013 at 12:19 PM.
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Old 17th April 2013, 12:23 PM   #2690
qusp is offline qusp  Australia
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internal resistance and noise is generally superior with A123 (not by a small amount), they are not a standard lifepo4, the nanocarbon substrate is different, the cycle-life is better and at least these legit ones and packs are without the compulsory switchmode regulation/protection circuits that are required by law to be built into the packs these days unless you are an OEM.
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