What is Crosstalk and How to Identify it With an Oscilloscope - Scopes University - (S1E9)
Vložit
- čas přidán 24. 01. 2018
- How to analyze crosstalk on an oscilloscope.
Click to subscribe: bit.ly/Scopes_Sub
Learn more about crosstalk ► bit.ly/CrosstalkApplication ◄
What is crosstalk and why do I care about it?
Crosstalk is interference on a signal from another signal. Any signal could interfere with another if a board layout is too crowded. Digital lines can disrupt power lines. Power lines can disrupt digital lines. Digital can interfere with other digital signals. If signal traces are placed too close together they can interfere with each other causing noise or errors that could lead to malfunctions of your device.
Ideally, boards are designed to follow specific spacing standards. But as designs become more complex while form factors become more compact, we stretch the boundaries of layout constraints and experiment with new ways of routing signals.
Noise and errors can be caused by many different things, but if the cause is crosstalk, there’s usually a way to fix it. The traces need to be further spaced or rerouted across the board. Unfortunately, redoing a layout and then fabricating another board can be tedious and expensive. Before you go through the trouble, wouldn’t it be nice to measure and quantify crosstalk and understand the benefit of a redesign?
Without a tool to analyze crosstalk, it can be difficult, if not impossible to understand the impact of crosstalk.
In this episode you will learn how to set up eye diagrams and use the crosstalk tool to quantify crosstalk and model the improvement in design if you were to update it to remove the effects of crosstalk.
You can check out the application I’m using at this product page: N8833A Crosstalk Analysis Application
bit.ly/CrosstalkApplication
Tune in for future Scopes University episodes covering more oscilloscope capabilities to see how you can test more efficiently!
You can ask me questions on Instagram: @keysightoscilloscopes
/ keysightoscilloscopes
Learn more about using oscilloscopes:
oscilloscopelearningcenter.com
Check out the EEs Talk Tech electrical engineering podcast:
eestalktech.com
More about Keysight oscilloscopes:
bit.ly/SCOPES
Check out our blog:
bit.ly/ScopesBlog
Follow us on Twitter: @DanielBogdanoff
/ danielbogdanoff
Like our Facebook page:
/ keysightbench
The mixed signal oscilloscope we used:
www.keysight.com/en/pcx-x20521...
(The Keysight Infiniium S-Series Oscilloscope)
The S-Series allows you to see the truest representation of your signal with the industry’s best signal integrity: 10-bit ADC, low noise front end, superior time base, signal processing in hardware, and responsive deep memory.
Scopes University is hosted by Erin East and Melissa Spencer. The video series covers when and how to use different applications and capabilities of the InfiniiVision and Infiniium oscilloscopes. You’ll gain familiarity with features that will help you save time in your measurement, further your analysis, and deepen your insight.
#ScopesUniversity #Oscilloscope #HowTo #ElectricalEngineering #Crosstalk #Electronics #Robotics #Microcontrollers #InternetofThings #IoT #ElectricalEngineers - Věda a technologie
This video series has boosted my impression of Keysight. You guys are doing a great job. I'm definitely going to save up for my next instrument buy.
They had this when they were Agilent as well.
Always something to learn from your series and really well presented
It seems Keysight stepped in to making great videos, I really enjoy them every time.
I love it when a season I'm enjoying ends without a cliffhanger, I can wait for the next one happy!
Thanks for.. giving information about
Great video. Thank you!
I have no idea what this video Is or even what crosstalk is but I feel like I’ve been looking for something like this my whole life to learn about
Nicely done!
Nice application!
pretty nice
Very cool
Slick!
This is exactly what I need for a project, it sucks that I’ll never be able to afford a scope with functions like this as an amateur. I keep hitting the limitations of my Rigol.
There will be several opportunities to win a new scope during Wave 2018! It begins March 1, but you can preregister now. Make sure to check it out at wave.keysight.com
I think I’ll do that, thanks!
What a cute channel. Thanks for nice video.
Thanks for the video. Is there a paper that tells how the tool removes crosstalk from the two aggressors?
This webcast is probably your best option, but I'm not sure how much of the application is proprietary: stream.dcasf.com/webinar/characterize-and-debug-crosstalk-issues-with-the-new-keysight-crostalk-application/
Did you connect RF generator to that pcb?
Beautiful speaker!
Well, I'm three years late to the party but the videos are still teaching people, me being one of them
Welcome!
I once had a RadioShack Probe scope, that little devil could induce noise on its own. ;-)
Ended up losing it on a job, and really miss it.
I'm sorry you lost your scope! If you are looking for a new one, there will be several opportunities to win a new scope during Wave 2018! It begins March 1, but you can preregister now. Make sure to check it out at wave.keysight.com
Besides actual distance relocation, are there other possibilities used to minimize the problem ? Shielding, multi-layer board usage ? J K
James, great question! Yes. The goal is to reduce the capacitive coupling, or electromagnetic interference between adjacent traces. Rerouting to increase the spacing is just one way to do this. Shielding or routing to other layers in the board can also work and may even be better options if you have limited real estate to work with.
Yes, or co-axial wiring . I am open to suggestions. J K
my ds1054z is mad at me for watching this video
It's just jealous