Can fpga do peak hold

Can fpga do peak hold like the attached drawing.
The orignal pulse is about 0.3us wide. The wide of the peak hold is 20us.
The peak amplitude is of 0.8V.
Thanks.
Solved!
Go to Solution.

The fastest cRIO analog input module is the 9201, which samples at 500 kHz, which is equivalent to 2 us intervals.  That would not be fast enough to catch your pulse.
The fastest R series board is 750 kHz, which still is not fast enough.
If you built a simple comparator circuit that would convert your pulse to a TTL level signal, you could connect it to a digital input on the FPGA (probably R series only) and read it fast enough.  You could use that signal to turn an analog output on and off at the right times.  It wouldn't exactly be a peak hold, but it would be pretty close.
Hopefully this gets you closer to an answer to your question.
Bruce
Bruce Ammons
Ammons Engineering

Similar Messages

  • Sound and Vibration kit - Peak Hold

    I am evaluating a dynamic signal and would like to gather peak hold information from SVT 1/3 octave output. The SVT FFT tool has a "peak hold" function that allows for gathering spectral data over time, but it does not output an array of values. Is there a way I can capture peak hold from the SVT 1/3 octave output and create an indexed array that integrates a dynamic signal in a "peak hold" manner?
    I am evaluating exposure impacts of anthropogenic noise on marine animals for ocean noise pollution mitigation.
    Thanks!
    Michael Stocker
    Michael Stocker
    Director
    Ocean Conservation Research

    Hello mstocker,
    From your post this is what I understand:
    You want to perform peak hold averaging with your Third-Octave
    Analysis.vi and then obtain an array of data of  the peak values. The
    Third-Octave Analysis.vi has a selection for the averaging type you can
    select peak averaging as the type of averaging. Peak averaging combines
    the results of several measurements into one final measurement. The
    output of the Third-Octave Analysis.vi is a cluster. The cluster
    contains one array of nominal frequencies and an array of band power.
    Is this what you were looking for?
    If I have misunderstood your post, please reply with clarification. I would really appreciate it.
    Regards,
      Sandra T.
    Applications Engineer | National Instruments

  • How much RAM can my Macbook Pro hold MAX?

    Can my Macbook Pro hold a MAX of 8GB or is it just 4GB? I'm getting different answers online and I'm a little annoyed at this point. My computer specs currently are:
    15 inch Laptop
    MacBook Pro 2.6 GHz Intel Core 2 Duo
    2 GB 667 MHz DDR2 SDRAM.
    Got my computer in 2009.
    At Crucial.com it says it can hold up to 8GB when I select my computer processor speed from their list, but I noticed it saying DDR3 (and I don't know what that means to be honest). Here's the link:
    http://www.crucial.com/store/mpartspecs.aspx?mtbpoid=7F3A5584A5CA7304
    To the best of my knowledge I selected the correct computer, which I own, from their list.
    Under "About This Mac", on my computer, it says DDR2 for the memory, on Crucial.com it says DDR3. As a result I'm confused and will that cause problems?
    I'll be getting my RAM kit from Crucial.com, so do I buy the 4BG kit, because that's all my laptop can handle, or is it OK to get the 8GB kit, which says DDR3?
    I do a lot of video and audio, so I would like to get my RAM up to 8 GB if it will.
    Thanks

    One more question friend....You've been so helpful
    Will these two sticks work together on my machine?
    2GB, 200-pin SODIMM, DDR2 PC2-5300 memory module
    http://www.crucial.com/store/mpartspecs.aspx?mtbpoid=B54C51B4A5CA7304
    along with a...
    4GB 200-pin SODIMM DDR2 PC2-6400 Memory Module
    http://www.amazon.com/Crucial-CT51264AC800-200-pin-SODIMM-PC2-6400/dp/B001RB21JE
    So these two would add up to 6GB total. Now the ONLY DIFFERENCE that I see is the 2GB stick is PC2-5300(667Mhz)speed and the 4GB stick is PC2-6400(800Mhz)speed. I understand that my machine won't run at the 800Mhz speed that the PC2-6400 stick is designed for, cause my machine says 667 under the memory info. From what I read online, it's ok to put a higher Mhz stick in there, it will just cap at 667Mhz speed? But.......both sticks are DDR2, which is right for my computer, but will the 667 MHz with a 800 Mhz be a huge no-no to run together? At this point I think that is my main concern! If I can't do this, than I think I'll have to go with the 2x2GB kit for 4GB total, but I REALLY would like to run 6GB.
    Shew.... :P
    Thanks again!

  • When receiving an call waiting can't push the hold and answer button.Because: it will put on hold the first caller, answer to the second, but you can't hear the second until you end the first call !!! Anyone has the same problem ? Did anyone know why ?

    When receiving an call waiting can't push the hold and answer button.Because: it will put on hold the first caller, answer to the second, but you can't hear the second until you end the first call !!! Anyone has the same problem ? Did anyone know why ?

    Contact iTunes Customer Service and request assistance
    Use this Link  >  Apple  Support  iTunes Store  Contact

  • "can the iphone 5 hold 1170 songs and 85 apps or should i go for the 32gb model?"

    "can the iphone 5 hold 1170 songs and 85 apps or should i go for the 32gb model?"

    I have more music than that and more apps, and I have a 32GB model with about 15GB free, so I would suggest the 32GB.

  • Peak hold function in LabVIEW

    Hi,
    I have a filtered signal in which I need to get the values of all my peaks (positive and negatives) and afterwards get the mean value. Some oscilloscopes have this function implemented, but I haven't found such a subVI in LabVIEW. Is there any chance to get this function or I have to program it? In this case, I've thought using the derivates of the signal and compare the values and check the derivate tendence, but I think that this function will made my process very slow. Any ideas?
    Thanks in advance,
    Angel

    Just by doing a quick search on the functions pallete I found two VI's that should do what you want. the is a mean.vi and a peak hold vi. I do not know if you have already found them and they will not work or if you could not find them. these VI's may not be avaiable if you have the base package.
    I Use labview 7.0 (full)
    Joe.
    "NOTHING IS EVER EASY"

  • HT201441 Find My iPhone Activation Lock: Removing a device from a previous owner's account. But what if You can't get a hold of the owner?

    I went through all the steps of resetting the phone now its telling me to give the apple ID of the previous owner but i can't get a hold of them, what do i do noww?

    Activation Lock in iOS 7  >  http://support.apple.com/kb/HT5818
    JohnMoney1 wrote:
    I went through all the steps of resetting the phone now its telling me to give the apple ID of the previous owner but i can't get a hold of them,
    Then you have a Device you cannot use.

  • HT4907 i am trying to set up an airdisk that is connected to my parents airport extreme, though next to my iCloud account details i get a yellow status light and can't get a hold on the airdisk being connected to an other internet connection..what should

    i am trying to set up an airdisk that is connected to my parents airport extreme,
    though next to my iCloud account details i get a yellow status light and can't get a hold on to the airdisk when i'm being connected to a different internet connection..what should i do?
    sharing is enabled and i entered the right account details.
    the disk shows up connected to my parents network, but i want to access it from my place as well

    Encryption wouldn't matter except for Wifi.
    While 10.2 might help, there's not much you can do on the Internet these days with less than 10.4.11
    Tiger Requirements...
    To use Mac OS X 10.4 Tiger, your Macintosh needs:
        * A PowerPC G3, G4, or G5 processor
        * Built-in FireWire
        * At least 256 MB of RAM (I recommend 1GB minimum)
        * DVD drive (DVD-ROM), Combo (CD-RW/DVD-ROM) or SuperDrive (DVD-R) for installation
        * At least 3 GB of free disk space; 4 GB if you install the XCode 2 Developer Tools  (I recommend 20GB minimum)
    http://support.apple.com/kb/HT1514
    http://www.ebay.com/sch/i.html?_nkw=mac+os+x+tiger+retail+10.4
    See Tom's, (Texas Mac Man), great info on where/how to find/get Tiger...
    https://discussions.apple.com/message/15305521#15305521
    Or Ali Brown's great info on where/how to find/get Tiger...
    http://discussions.apple.com/thread.jspa?messageID=10381710#10381710
    As far as Memory, that's sort of easy, find your eMac here...
    http://eshop.macsales.com/MyOWC/Models.cfm?Family=emac&sType=Memory
    As far as Hard Drive, it's not easy to replace the Internal drive, I'd maybe suggest an external Firewire drive to boot from...
    http://eshop.macsales.com/item/Other%20World%20Computing/MAU4S7500G16/

  • HT201441 I can't get a hold of the previous owners iCloud how else can i erase the account

    I can't get a hold of the previous owners iCloud account or Apple ID ,how else can I erase his account so I could activate my phone

    So after hitting "Delete" for the second time (which I did not do because I did not want to delete my account) it asks for a password?
    Can't the phone just be reset back to factory?
    Settings>General>Reset>[choose your option]
    or
    Reset throught the iTunes you will be syncing with?

  • How many images can iPhoto 2.01 hold?

    How many images can iPhoto 2.01 hold? What's the maximum.
    And why does iPhoto occassionally crash when dragging folders of images into the Album list area?
    thanks,
    Hairfarmer

    I have 70,000 RAW images arranged in directories by year/day.  The only thing slow about it is during catalog backup. When first starting LR it takes a couple of minutes to enumerate the dates with photo counts, but that occurs in the background.  I detect no database related slowness while editing or performing random accesses and searches.  I have seen no difference in the above after having upgraded to V4.
    The only slowness that I find annoying has nothing to do with the database.  It is after a certain number of spot removals of varying sizes. The larger and/or more varied the spot size tends to accelerate this.  At some point it starts disk thrashing and becomes impossible to work with (I have to back up to a history step when it was running OK, which can take several minutes).  When this occurs the task manager shows a high rate of page faults, meaning it is swapping out stuff to disk (even though I have plenty of unused ram).  This suggests a problem with the compiler, but that is just an wild educated guess.

  • Can the Ipod Classic hold uncompressed video?

    Can an ipod classic hold an uncompressed video, say a .DV file or even mpeg-2, then somehow be hooked up to a tv and watched with no loss of quality?
    I have little interest in watching movies on that little screen, but I'd like to store a couple movies to take over to a friend's house and play on the tv...
    thanks.

    schmoel, you can't work with uncompressed stuff (see THIS)
    However, there are some excellent file converters out there, specifically designed to output the iPod Classic format, and to choose whether you'll be watching on screen or TV.
    Personally, I use VisualHub

  • How many movies can the itunes library hold?

    i have quit a few on there, and i want to keep them on there, aswell as add more. i'm just worried that if i go to buy a movie it'll say it can't hold anymore movies

    how many movies can the itunes library hold?
    As many as the available drives will accomodate.
    (47294)

  • How many tray feeders can a 4250 laserjet hold?

    The most I have seen is 3, can it hold more?

    slider9499 wrote:
    I just picked up a 1GB Shuffle for my car. My new Honda has a USB port for iPods
    Read the manual to ascertain whether your Honda audio system actually supports the
    iPod shuffle through the USB port... you may have to just plug it into
    the audio-in ...
    and I like to mix things up a bit and listen to eBooks and Books on Tape.
    1. About how many eBooks can a 1GB Shuffle hold?
    The answer depends on the format/encoding and bitrate of the audio e-book, generally known as audiobook
    2.Without a graphic interface how do I actually locate the songs and/or books I want to listen to?
    You memorize the order and make sure the audiobooks are not shufflable.

  • How Many e-Books Can a 1GB Shuffle Hold?

    I just picked up a 1GB Shuffle for my car. My new Honda has a USB port for iPods and I like to mix things up a bit and listen to eBooks and Books on Tape.
    1. About how many eBooks can a 1GB Shuffle hold?
    2.Without a graphic interface how do I actually locate the songs and/or books I want to listen to?
    Thanks

    slider9499 wrote:
    I just picked up a 1GB Shuffle for my car. My new Honda has a USB port for iPods
    Read the manual to ascertain whether your Honda audio system actually supports the
    iPod shuffle through the USB port... you may have to just plug it into
    the audio-in ...
    and I like to mix things up a bit and listen to eBooks and Books on Tape.
    1. About how many eBooks can a 1GB Shuffle hold?
    The answer depends on the format/encoding and bitrate of the audio e-book, generally known as audiobook
    2.Without a graphic interface how do I actually locate the songs and/or books I want to listen to?
    You memorize the order and make sure the audiobooks are not shufflable.

  • My iPhone 4 is vibrating constantly but will not turn on or turn off.  How can I reboot it (holding on/off button does not work)?

    My iPhone 4 is vibrating constantly and will not turn on or turn off when any buttons are pushed.  How can I reboot it (holding top on/off button does not reboot or have any impact)?

    Hi Ive just had the same problem,I was playing a gamy 'my farm' & i put my iphone 4 down to answer door then when i picked it up the iphone was black screen & no power,i did plugin to itunes & the wall plug but nothing,then i held the power & home buttons down for about 6 seconds & the apple logo appeared.I really freaked,its ok right now but im phoning my apple store becoz it had 77% battery so theres something wrong with this iphone 4.
    I changed my 3gs 4 times & my original 2g 5 times,I just dont have any luck with iphones,now im worried its gonna do that again ,the game 'my farm keeps dropping out & saying no internet yet my internet connection is strong & fine,looks like we have the same problem even wen i plugged it into itunes it didnt recognise the iphone,i hope u get yours sorted

Maybe you are looking for

  • Inventory Report

    Hi Experts..... I'm trying to write a query which gives the on hand stock for a warehouse with serial number and expiry date. My query gives the output when inventory transfer and Goods receipt po are made but when invoice or delivery is made the sto

  • IWeb 08 bug in my html and I can't find it!

    iWeb created this code. This is a box with two hyperlinks in it, seperated by a graphic. In iWeb, each of the links goes loads the correct web page. However, after uploading the blog.html page and clicking on the links there, they are BOTH going to m

  • PixelGrabber is too slow and has memory problems!

    Have any of you figured out a way to get pixels from an Image WITHOUT using PixelGrabber?? PixelGrabber is really slow -- is a memory hog -- and has other problems that cause me to need another way to get pixels from an image. Does anyone else have a

  • Email to Purchase Group for GR and IR value variance

    Dear Experts, In our current setup an email will be triggered based on the company if there is a price variance occured for the PO in GR and IR value, however an email has been triggered although both values are exactly,please suggest some check poin

  • How to default External send in out of VF01

    Dear all , I want to change current default of "print printout to External send "in VF01 (F2 invoice)  in header--> output So whenever I will be using VF01 it should be defaulted as External send . Output type is RD00 Please advise where to trigger i