TSP #9 - Tutorial on Passive Filters, Data Transmission and Equalization

Ғылым және технология

In this episode Shahriar explores the world of filters! Starting from a simple lumped RC filter, he briefly covers the theory before moving onto measurement techniques. The bandwidth of the filter is verified experimentally in the time domain. A more complex RLC band-stop filter is also demonstrated with a tune-able inductor which is measured using an RLC meter. Using a Rigol spectrum analyzer with built in tracking generator and an active probe, the frequency response of the filter is measured. Several other packaged filters are also demonstrated and a microwave band-pass filter is disassembled to reveal its internal construction.
Moving onto "undesired filters", a Tyco backplane board is presented and the bandwidth limitation of the backplane traces are measured. A Xilinx FPGA board equipped with a Vertex II PRO is used to generate a 1.5Gbps PRBS data stream through the Tyco board. After observing the frequency composition of the date, pre-emphasis equalization is used to compensate the backplane frequency limitations. Eye diagram measurements verify the benefit of pre-emphasis equalization to combat inter-symbol-interference (ISI).
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Пікірлер: 156

  • @Thesignalpath
    @Thesignalpath12 жыл бұрын

    Thanks for the kind comments! Ph.D EE, 30 years old. My advice would be, read, experiment and wonder! It is one thing to know what (for example) what FFT is. But nothing drives home the idea better than taking a signal and looking at it on a spectrum analyzer. I know that not everyone would have the opportunity to do this experiment. This is the main driving force for me to create these videos.

  • @jeffreyyellow706

    @jeffreyyellow706

    3 жыл бұрын

    Good Quality video

  • @thearithmos3408

    @thearithmos3408

    2 жыл бұрын

    HEY🤗🤗, thanks for making such an informative video. I was wondering what book would you recommend about electronics ? (I'm an electronics engineering student)

  • @Lwyte17

    @Lwyte17

    Жыл бұрын

    I'm returning to school for an EE degree at 28 after many life problems, and I hope I can find a path in RF Engineering after because it's just incredibly fascinating to me. Watching your videos always gives me motivation to keep working towards my goal, and maybe one day I can be at your level. Thanks for all your amazing content and knowledge, the world needs more teachers and people like you sharing what they know.

  • @ntoobe
    @ntoobe7 жыл бұрын

    Why was the wine evaporating from the glass during the experiment?

  • @alextrofimov7947
    @alextrofimov79477 жыл бұрын

    Hi Shahriar! I think that the amount of details is just ideal for a 1 hr video.) Thank you so much for the knowledge you shared. )

  • @hla27b
    @hla27b12 жыл бұрын

    Shahriar your videos show exactly what is impossible to show in a textbook. Being an amateur, this is the most comprehensive introduction to high frequency electronics that I ever had. Now I know much better what the textbooks were trying to tell me. Besides, I enjoy a glass of wine on my workbench too. Prosit!

  • @joes5669
    @joes56692 жыл бұрын

    I love your approach for the eye diagram explanation in this video; top notch sir!

  • @PedroMariz88
    @PedroMariz8811 жыл бұрын

    Man, was the more helpful hour that I spent in KZread. Thanks a lot.

  • @PelDaddy
    @PelDaddy8 жыл бұрын

    Nice video. I love the way you always refer to tools and instruments, and your tests as experiments. This is very precise, and much appreciated. I love your channel. Thanks!

  • @Nermash
    @Nermash12 жыл бұрын

    I am very glad to see you back, and it is an impressive comeback:) I really enjoyed watching this. Nothing beats high speed digital propagation experiments involving cool new gear:)))

  • @x86cowboy
    @x86cowboy11 жыл бұрын

    Best hour I've spent on youtube. Thanks very much. This is very interesting. I hope you make more cool videos like this. From very simple RC circuits to real-world applications is an excellent method of teaching.

  • @jaylav1125
    @jaylav112510 жыл бұрын

    Great video! I am new to electronics design but everything you talked about made perfect sense. To take subject matter like this and make it easy to understand is a fantastic gift!

  • @mevmevmev
    @mevmevmev11 жыл бұрын

    Exactly. I finally got a spectrum analyzer after years of wanting one. Seeing theory applied to real experiments seems to be exactly what I need to retain the ideas and clarify what I try to learn from reading. These videos are great.

  • @surenets
    @surenets9 жыл бұрын

    Absolutely love your videos. I hope you still get the feedback from these that are 2+ years old. I've been watching many of the newer ones too - keep up this incredible work.

  • @msk19991
    @msk1999111 жыл бұрын

    That was simply OUTSTANDING, many many thanks for the effort & time spent on your tutorials Best wishes

  • @davidbeauchesne7399
    @davidbeauchesne739910 жыл бұрын

    This was the first video that I viewed from TheSignalPathBlog and it was great! I will be watching many more. Thank you very much!

  • @Bekele2020
    @Bekele202012 жыл бұрын

    Gracias Shahriar, thank you for share with us your knowledges and teaching habilities. I look forward keep learning from you.

  • @KeenanTims
    @KeenanTims12 жыл бұрын

    Great video, good to see some pretty advanced topics coming up, even if just peripherally. Very cool stuff, and the future work you're talking about sounds very interesting as well. Thanks!

  • @odaialdawoud8681
    @odaialdawoud86813 жыл бұрын

    Thank you for your videos. 8 years later, you've impacted another individual and hopefully these videos keep making contributions to people's lives :)

  • @JetNmyFuture
    @JetNmyFuture8 жыл бұрын

    I have been going back and watching many of the older videos to review. These videos expose holes in my understanding and encourage me to self-educate as well as go back to school to finish my degree in EE. It is actually quite a bit of fun to watch these after some time time has past and realize that I understand much more of it, but also realize that there are many more details (never ending) to be learned. Love these, the biggest lesson is for me is learning what to learn next.

  • @trickyrat483
    @trickyrat4838 жыл бұрын

    Great video, as usual. Thank you so much. Learning so much from your videos - working my way through all of them. :)

  • @mrstijntje
    @mrstijntje12 жыл бұрын

    Very clear and entertaining video to watch. It has become clear to me once again what's the value of good equipment. Had never heard of this 'eye' measure thing before but the way it works looks really logical. Thumbs up!

  • @TheCondoInRedondo
    @TheCondoInRedondo7 жыл бұрын

    Really, really appreciate your work on this one in particular. My schooling was back in the early '70s. We didn't have these tools. Nor did we have these bandwidth challenges.

  • @PodeCoet
    @PodeCoet11 жыл бұрын

    Excellent work! We just learnt about this at college, great to see it all in practice

  • @octavmandru9219
    @octavmandru92195 жыл бұрын

    excellent. I have to re-watch it a couple of times in order to fully understand how the theory applies but this is by far the best tutorial on filters I have seen. Thank you for your involvement and effort to educate the community

  • @nathanas64
    @nathanas645 жыл бұрын

    Great series and a great educational contribution !! Thank you!

  • @RandyLott
    @RandyLott11 жыл бұрын

    That was incredible! I've never seen a machined filter and always wondered what they looked like!

  • @matthollandsf
    @matthollandsf6 жыл бұрын

    super cool to see the inside of the microwave filter. awesome demo at the end.

  • @billysdomain
    @billysdomain11 жыл бұрын

    Awesome video couldnt take my eyes off it, love the detail in how to properly connect DUT

  • @mustafamuhammed9066
    @mustafamuhammed90666 жыл бұрын

    You're wonderful. Keep making those videos .Real Nice Work!

  • @KB4QAA
    @KB4QAA12 жыл бұрын

    Super class! First of you series I have seen. I have radio IF filters to align and thiso and this gives me a better understanding of how to use my spectrum analyzer functions. I also need to build a notch/bandstop filter for block broadcast FM stations. thanks, Bill

  • @mikeissweet
    @mikeissweet8 жыл бұрын

    Fantastic! I just learned a ton, thank you! You made this surprisingly easy to follow.

  • @patricksaladino
    @patricksaladino11 жыл бұрын

    Thank you for the time and effort put in this very interesting video !

  • @ajairaj9624
    @ajairaj96247 жыл бұрын

    Best video ever. Love it :)

  • @Thesignalpath
    @Thesignalpath12 жыл бұрын

    @chromebeats The earlier videos use an animated intro sequence. The later videos use a screen-capture clip. I was experimenting with the camera and noticed the screen-capture creates an interesting halo, so I decided to keep it. No mystery or weirdness.

  • @lazerusmfh
    @lazerusmfh12 жыл бұрын

    As an Wireless engineer, this video was just, cool. I am jealous of the instruments. I very much enjoyed, even the more advanced topics you have shown. I really liked the insight to signal integrity when you do Frequency domain experiments. These things are especially true when using highly modulated signals, very cool!

  • @tahmad20
    @tahmad2012 жыл бұрын

    Awesome tutorial. Thanks Shahriar.

  • @DAVET38
    @DAVET3810 жыл бұрын

    A very useful video. I found it most interesting and informative. Thank you.

  • @dr.med.schlomov.aschkenasy842
    @dr.med.schlomov.aschkenasy8427 жыл бұрын

    A wonderful video. I learned tons. Thank you so much!!

  • @etothejtheta
    @etothejtheta12 жыл бұрын

    These are great! Keep them coming.

  • @billmoran3812
    @billmoran38126 жыл бұрын

    Love the tutorial. Very good content.

  • @FRRRRAAANNK
    @FRRRRAAANNK10 жыл бұрын

    Great video. Thank you very much.

  • @13isp
    @13isp12 жыл бұрын

    Very well done, great contribution!

  • @jokeshii
    @jokeshii12 жыл бұрын

    Great video of practical aspects of the filter.....For fist time viewers like me... it very impressive.

  • @manse990
    @manse99012 жыл бұрын

    Love the videos..as an out of work Engineering Tech it helps me keeps my skills and the equipment understanding fresh....i love to have access to all the gear especially the sequencer and the o-scope....please add as many equipment tutorials as possible....thanks

  • @igoronline
    @igoronline11 жыл бұрын

    That microwave band-pass filter totally blew my mind.

  • @ender1296
    @ender12967 жыл бұрын

    very interesting as I now have a friend with a spectrum analyser and should be using it on my self built sdr. Will be interesting to see the filter responses. Thank you very much for this detailed video.

  • @iftikharabid659
    @iftikharabid65911 жыл бұрын

    You are really doing a great job. Keep it up !

  • @oncho1960
    @oncho196011 жыл бұрын

    this was excellent...thank you so much for doing this!!!

  • @timthompson468
    @timthompson4685 жыл бұрын

    Excellent video. A lot of good practical information. Lucky for me, I don’t work anywhere close to those frequencies, so my equipment and components are much less expensive. A lot of the concepts still apply.

  • @yoorikbarkhordarian4946
    @yoorikbarkhordarian49469 жыл бұрын

    Great job every thing was clear understanding Thank you.

  • @mrmega328
    @mrmega32812 жыл бұрын

    Good video, I liked that lots of things were shown and explained (most of which I never have been before)

  • @mfbayramoglu
    @mfbayramoglu9 жыл бұрын

    inspirational video. thanks.

  • @josepaul2000
    @josepaul200011 жыл бұрын

    Brilliant video.

  • @Vahidutube
    @Vahidutube12 жыл бұрын

    Khasteh nabaushy agha Shariar. That was very great. Please keep doing good work. Thanks. Vahid.

  • @belochka81
    @belochka8110 жыл бұрын

    you got the gift. Thanks

  • @TimHavens
    @TimHavens11 жыл бұрын

    VERY WELL DONE! Thank so much! I'll be sure to checkout more of your work. Tim

  • @MrDuden
    @MrDuden12 жыл бұрын

    really nice video, everything was clearly explained. thanks for your effort

  • @vvk1985
    @vvk19855 жыл бұрын

    Very nice delivery with extensive details. Thanks for your efforts and hard work to put all this together. Would be interesting to see spectrum analyzer plots (eye-diagram by default) when data is passing through 60' trace and the effects of Tx side pre-emphasis, de-emphasis and attenuation if possible with a BW of 10G+. Looking forward for next video on the Equalization.

  • @Soulflayar
    @Soulflayar12 жыл бұрын

    This is just amazing, I feel I learned so much from this and its only 1 hour O_O tyvm for this

  • @FUNKLABOR_DL1LEP
    @FUNKLABOR_DL1LEP Жыл бұрын

    Very Impressive!

  • @wooosaiiii
    @wooosaiiii12 жыл бұрын

    Shahriar great video :) and I have to say you have a really nice lab equipment... keep up with good work and inspired videos... ^^ Great to have you back afer a while... xD

  • @user-dq1si2jm2l
    @user-dq1si2jm2l9 жыл бұрын

    Really informative. Keep it up!

  • @matiasvdtube
    @matiasvdtube12 жыл бұрын

    Great video. Thanks for sharing.

  • @AnthonyCRoberts
    @AnthonyCRoberts12 жыл бұрын

    Top notch. Thank you.

  • @Matthias051
    @Matthias0516 жыл бұрын

    Thank you so much for this interesting video. I wish it would be even longer! :-) More details please

  • @MantisRay861
    @MantisRay8616 жыл бұрын

    Very informative!

  • @amikhimji
    @amikhimji10 жыл бұрын

    Great video thanks

  • @viccourageous
    @viccourageous12 жыл бұрын

    Thanks for the advice keep up the good work

  • @mdesm2005
    @mdesm200512 жыл бұрын

    Great video, thanks.

  • @gingsSon
    @gingsSon4 жыл бұрын

    Excellent video sir

  • @kevinxbuffalo
    @kevinxbuffalo12 жыл бұрын

    Great video! Keep it up!

  • @chilldog1234567890
    @chilldog123456789012 жыл бұрын

    good work explaining the per-emphasis.

  • @nihran123
    @nihran12310 жыл бұрын

    Excellent, keep it up.

  • @Thesignalpath
    @Thesignalpath12 жыл бұрын

    @MrMac5150 THANK YOU! YOU ARE TOO KIND!

  • @Thesignalpath
    @Thesignalpath11 жыл бұрын

    My expertise is in mm-wave integrated circuits, specifically for wireless and optoelectronic wireline applications.

  • @AxelWerner
    @AxelWerner11 жыл бұрын

    AWESOME!

  • @bbman_01
    @bbman_0112 жыл бұрын

    great video

  • @skyhighhigh9999
    @skyhighhigh99999 жыл бұрын

    superb!

  • @bubbleslaboratory
    @bubbleslaboratory11 жыл бұрын

    Great job! keep it up

  • @permitivitym4318
    @permitivitym43189 жыл бұрын

    its very informative specially for people like us who don't usually have the opportunity to deal with these kind of stuff

  • @Photonface
    @Photonface12 жыл бұрын

    Excellent vid

  • @KirkOfBellevue
    @KirkOfBellevue11 жыл бұрын

    I liked it. Thank you

  • @ghlscitel6714
    @ghlscitel6714 Жыл бұрын

    Drooling!

  • @Thesignalpath
    @Thesignalpath12 жыл бұрын

    @LegionForTheLulz Thanks!

  • @razean22
    @razean2212 жыл бұрын

    finally a new video \o/

  • @karlmozey1412
    @karlmozey14128 жыл бұрын

    yo flicking awesome am telling,cool tut ma niga,I real love this

  • @azzy314159
    @azzy31415912 жыл бұрын

    Actually One can see that the piece of iron causes the inductance to fall. Your lecture was Excellent. Thanks

  • @Thesignalpath
    @Thesignalpath12 жыл бұрын

    @Plutonion2 Oh boy, that WOULD be a challenge!

  • @santhoshk8703
    @santhoshk87034 жыл бұрын

    Best

  • @MrMac5150
    @MrMac515012 жыл бұрын

    YOU DID A GREAT JOB AND SHOULD BE A TEACHER YOU WENT THREW THE STEPS AT JUST THE RIGHT SPEED A LITTLE ADVANCE FOR BEGINNERS CLASS AA JOB THANKS

  • @4S7CRA
    @4S7CRA5 жыл бұрын

    Thank you for the knowledge you shared. Its great opportunity for me can't get higher education due to limit in universities in my country

  • @FrancoisRusse
    @FrancoisRusse12 жыл бұрын

    Thanks! Great video! It would be cool if you show regular probe's result after active probe's measurements.

  • @iNDREI_Ro
    @iNDREI_Ro Жыл бұрын

    18:26 He is having a drink in the lab. Nice! 😂

  • @Thesignalpath

    @Thesignalpath

    Жыл бұрын

    Well, I was at home so why not! :)

  • @gacherumburu9958
    @gacherumburu9958 Жыл бұрын

    👍👍

  • @georgelewisray
    @georgelewisray7 жыл бұрын

    Thanks many/much !!! - - - I was getting a bit lost towards the end so perhaps you could add some pre-emphasis to your teaching style and so open up my eyes and move more data thru the channel . . . . : ) , really great what you do.

  • @Inspironator
    @Inspironator4 жыл бұрын

    To me, I understand how the path degrades the pass band, but it is more interesting to understan how the pre-emphasis can gradually increase the gain with frequency, as opposed to the much more extreme rolloff of a one pole filter. So, another idea for a follow-on video.

  • @tunicana
    @tunicana12 жыл бұрын

    Outstanding Ph.D. in EE at your age waw....

  • @hgplaying5629
    @hgplaying5629 Жыл бұрын

    Man your wine glass killed me...😂

  • @aliemlek
    @aliemlek Жыл бұрын

    👍👍👌👌

  • @Plutonion2
    @Plutonion212 жыл бұрын

    Good video .Was interesting looking in that filter.I thought they where discreet l,c,r in them .I didn't know there was only cavities and tubes in those microwave ones (but the one you showed was quite a low frequency filter).I bet you could mod these by cutting the tubes to produce your own filter characteristics if you like a real challenge.lol .

  • @tiredfingers99
    @tiredfingers9911 жыл бұрын

    Thanks for a great video. Could the transmission line traces on the circuit boards be improved if they had a ground right under on the unintentional filter board? That ground trace would have to follow the trace the whole way I would assume.

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