+ Post New Thread
Results 1 to 10 of 10

11th July 2018, 19:58 #1
 Join Date
 Feb 2014
 Posts
 59
 Helped
 1 / 1
 Points
 1,071
 Level
 7
latency of the dsync output
Do we expect output of dsync to get the stable input after 2 or 3 destination clks? Are there any other practical cases we should consider?

Advertisment

11th July 2018, 22:21 #2
 Join Date
 Apr 2016
 Posts
 1,342
 Helped
 232 / 232
 Points
 6,329
 Level
 18
Re: latency of the dsync output
No idea what you are talking about... context?
Really, I am not Sam.

11th July 2018, 22:31 #3
 Join Date
 Feb 2014
 Posts
 59
 Helped
 1 / 1
 Points
 1,071
 Level
 7

12th July 2018, 08:16 #4
 Join Date
 Jan 2008
 Location
 Germay
 Posts
 1,102
 Helped
 244 / 244
 Points
 7,495
 Level
 20
 Blog Entries
 1
Re: latency of the dsync output
We don't know what is "dsync"!
Please frame your question properly with a proper background explanation or reference (if needed)......yes, I do this for fun!

Advertisment

12th July 2018, 08:35 #5
 Join Date
 Feb 2014
 Posts
 59
 Helped
 1 / 1
 Points
 1,071
 Level
 7

12th July 2018, 15:57 #6
 Join Date
 Apr 2016
 Posts
 1,342
 Helped
 232 / 232
 Points
 6,329
 Level
 18

12th July 2018, 18:07 #7
 Join Date
 Feb 2014
 Posts
 59
 Helped
 1 / 1
 Points
 1,071
 Level
 7

12th July 2018, 22:22 #8
 Join Date
 Jan 2008
 Location
 Bochum, Germany
 Posts
 42,690
 Helped
 13008 / 13008
 Points
 245,688
 Level
 100
Re: latency of the dsync output
Why don't you sketch a timing diagram?

12th July 2018, 22:49 #9
 Join Date
 Feb 2014
 Posts
 59
 Helped
 1 / 1
 Points
 1,071
 Level
 7

Advertisment

17th July 2018, 19:30 #10
 Join Date
 May 2018
 Posts
 12
 Helped
 1 / 1
 Points
 84
 Level
 1
Re: latency of the dsync output
For a double sync you should ideally see the output after 2 destination clocks. However, when you move from one clock domain to other, synchornizers make sure that probability of metastability will be reduced to almost 0, but they do not guarantee that data will be sampled in 2 clock cycles. Data may take more time than that.
Thanks,
Abhishek
+ Post New Thread
Please login