Asynchronous I2S FIFO project, an ultimate weapon to fight the jitter - Page 112 - diyAudio
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Old 5th October 2012, 02:43 AM   #1111
qusp is offline qusp  Australia
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also I had a full 9hrs sleep last night
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Old 5th October 2012, 03:23 AM   #1112
ggking7 is offline ggking7  United States
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I'm curious, by what process does the isolator board achieve galvanic isolation?
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Old 5th October 2012, 03:35 AM   #1113
qusp is offline qusp  Australia
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i'm sorry, but if you still havent picked that up, I dont know where to start. you do know what galvanic isolation actually means right? have you bothered to look at any of the datasheets for the parts mentioned here?

this place is an information resource and mostly we like to help, but there is a point where you have to take some initiative and do some learning yourself.... as in DIY, this place isnt called KDIFM (Kindly Do It For Me)

youve read (well its been explicitly written) that both sides of the board are powered by different power supplies, youve read that there is a choice of isolator chips and it can be clearly seen on the board that the PCB is physically split right down the middle. look at the datasheet for the only part that straddles the gap and you'll have your answer

Last edited by qusp; 5th October 2012 at 03:53 AM.
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Old 5th October 2012, 08:56 AM   #1114
PET-240 is offline PET-240  Australia
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qusp,

That is actually a bloody simple explanation that says it all! Nicely done!

KDIFM.......really......too often.....too true!

Get a 12 month old then tell me how many full nights sleep you get! Minor jealousy here....

Drew
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Old 6th October 2012, 05:01 AM   #1115
ggking7 is offline ggking7  United States
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qusp, you are incredibly rude. Again. You've made it clear to everyone here that your electronics skills are high and mighty. Sometimes you even share your wealth of knowledge. The thing is, your delivery can be extremely condescending, and in my experience, disappointingly un-Ozzie.

It might be beneficial for you to ponder the question of why you feel the need to behave this way.
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Old 6th October 2012, 05:54 AM   #1116
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ggking7,

Perhaps using the search features and finding the answers to your own relatively simple questions might save those who have been following these threads and development for an extended period from answering the same questions over and over and over and over. You have been replying in this thread since late august and yet are still asking questions that are clearly outlined in manuals that have been very thoroughly prepared and published by Ian.

I frankly have no idea how Ian is able to sustain his seemingly limitless amount of patience!

If you select search, advanced search then search this and the GB thread for posts by iancanada you will find almost all of the answers you are looking for.

Most of the time you will get helpful answers if you have demonstrated initiative to find your own information, asking for people to take there own time to walk you through these things from the beginning without searching for yourself will typically get similarly terse responses regardless of the responders country of origin or whether you are asking the question online or in person.

Chris
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Old 6th October 2012, 06:27 AM   #1117
ggking7 is offline ggking7  United States
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Little did I know, qusp has actually been serving as the enforcer for the entire Brisbane crew!

This thread appears to be experts-only and that's fine. I suppose you need someplace to discuss things without being asked about matters beneath you. Condescension is probably a very effective filter. I'm just new to this attitude in an online forum and was caught by surprise.
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Old 6th October 2012, 04:42 PM   #1118
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Quote:
Originally Posted by ggking7 View Post
Little did I know, qusp has actually been serving as the enforcer for the entire Brisbane crew!

This thread appears to be experts-only and that's fine. I suppose you need someplace to discuss things without being asked about matters beneath you. Condescension is probably a very effective filter. I'm just new to this attitude in an online forum and was caught by surprise.
Hi ggking,

For normal digital audio applications, we don't need the isolator, it's not a must. But for some crazy audiophile DIYers, they pursue the last drop of juce, so they need isolating everything, clock, jitter and even galvanic connections. Their results usually beat much expensive high end audio gears.

Here are the datasheets of the isolators I'm using. As well as the follow link:
Digital Isolator - Wikipedia, the free encyclopedia

Just hope there are some helps .

Have a nice weekend.

Ian
Attached Files
File Type: zip Isolators.zip (559.5 KB, 98 views)
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Old 6th October 2012, 10:50 PM   #1119
qusp is offline qusp  Australia
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haha you clearly dont know many Aussies. Smiling up to a point.... i'm just not shy to say what others are thinking, rather Aussie trait that one. To 'call a spade a spade' so to speak. I suspect you have only seen us on television

You see, I find the deserving and somewhat lazy attitude of 'diyers' like yourself rude and you have just reinforced that by your juvenile response to me and Chris because he dared to feel the same way. Out come the slurs and silly patriotic guilt trips. We both bit our tongues yesterday and other days before that, I couldnt do the same again today.

to expect others to take the time out of their lives to spoonfeed you when the answers are right in front of you gets old pretty fast. You choose to repeatedly just type out questions to the oracle, now that is rude. I wont attribute this to your country of origin, its all over this forum and others like it in todays world. treating the internet forums and their members like they are some personal magical interactive time and money saving mechanism instead of people with the same constraints on their time as you have. if you behaved that way at work you wouldnt last long would you? Certainly nowhere i've ever worked.

if you dont understand a concept, the information is as freely available on the net to you as it is to anyone else. I'm not trained, i'm a Chef and designer by trade; I had to/have to learn by reading and doing, yes by asking questions along the way, but you have to show you are willing to do something. In this thread and those all over the forum, or in life, if you continue to show no initiative and just keep putting your hand out, people will get sick of it and yes some of them will let you know about it; i'm one of those people.

I/We get sick of having to hold peoples hand when they take on projects that are beyond their current knowledge, yet seem unwilling to do any work of their own to grow their understanding.

you will get nowhere doing DIY if you cannot take some initiative, read datasheets and manuals, google galvanic isolation, understand the questions you are asking and try to find out yourself before expecting it to be handed to you, you learn nothing in that process. then because you havent equipped yourself to better understand next time, you just ask for the answer again with the next thing and again walk away having learned nothing. If something goes wrong (quite likely) you will not be equipped to figure out what went wrong; then the forum will be expected to come to the rescue, like its something owed to you.

Last edited by qusp; 6th October 2012 at 11:07 PM.
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Old 6th October 2012, 11:18 PM   #1120
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Quote:
Originally Posted by qusp View Post
haha you clearly dont know many Aussies. Smiling up to a point.... i'm just not shy to say what others are thinking, rather Aussie trait that one. To 'call a spade a spade' so to speak. I suspect you have only seen us on television

You see, I find the deserving and somewhat lazy attitude of 'diyers' like yourself rude and you have just reinforced that by your juvenile response to me and Chris because he dared to feel the same way. Out come the slurs and silly patriotic guilt trips. We both bit our tongues yesterday and other days before that, I couldnt do the same again today.

to expect others to take the time out of their lives to spoonfeed you when the answers are right in front of you gets old pretty fast. You choose to repeatedly just type out questions to the oracle, now that is rude. I wont attribute this to your country of origin, its all over this forum and others like it in todays world. treating the internet forums and their members like they are some personal magical interactive time and money saving mechanism instead of people with the same constraints on their time as you have. if you behaved that way at work you wouldnt last long would you? Certainly nowhere i've ever worked.

if you dont understand a concept, the information is as freely available on the net to you as it is to anyone else. I'm not trained, i'm a Chef and designer by trade; I had to/have to learn by reading and doing, yes by asking questions along the way, but you have to show you are willing to do something. In this thread and those all over the forum, or in life, if you continue to show no initiative and just keep putting your hand out, people will get sick of it and yes some of them will let you know about it; i'm one of those people.

I/We get sick of having to hold peoples hand when they take on projects that are beyond their current knowledge, yet seem unwilling to do any work of their own to grow their understanding.

you will get nowhere doing DIY if you cannot take some initiative, read datasheets and manuals, google galvanic isolation, understand the questions you are asking and try to find out yourself before expecting it to be handed to you, you learn nothing in that process. then because you havent equipped yourself to better understand next time, you just ask for the answer again with the next thing and again walk away having learned nothing. If something goes wrong (quite likely) you will not be equipped to figure out what went wrong; then the forum will be expected to come to the rescue, like its something owed to you.
That's true .
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