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  3. CDF parameters of vpulse in analogLib

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CDF parameters of vpulse in analogLib

dineshp
dineshp over 17 years ago

Can somobody please tell me what the non-obvious CDF parameters such as "Frequency name for 1/period", "Noise file name", Number of noise/fre pairs" etc listed in component properties of analogLib sources (eg vpulse) mean, and how to use them? Nothing in the documentation actually explains this, it just lists the CDS parameters which is not of much help. I'm trying to introduce some jitter to a signal, and I was wondering whether there was some way of doing it without generating a text file for a vpwlf component.

Many thanks in advance!

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  • EricCDN
    EricCDN over 17 years ago

    Please see "Analog Library Reference Guide" Chapter 8 "Sources"

    In the end, vpulse, vpwlf, vdc, etc all get netlisted as "vsource"  You can see:

    unix> spectre -h vsource

    for more info as well.

     

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  • dineshp
    dineshp over 17 years ago

     Hi Eric,

    Thanks for your reply. Unfortunately neither of those references are of much help. I did check both before posting my original query, and the information contained in chapter 8 is restricted either to a bare 1 line description that is of no help in using them, or none at all. The command line help does not list the CDF parameters I was interested in. Do you know of any documentation out there from a user perspective?

     Many thanks, Dinesh

     

     

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  • EricCDN
    EricCDN over 17 years ago

    "Frequency name for 1/period" netlists as "fundname"

    "Noise file name" netlists as "noisefile"

     "Number of noise/fre pairs" will expand the form and allow you to put in Freq/Noise pairs if you do not have a file of them. 

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  • Eisa
    Eisa over 3 years ago in reply to EricCDN

    Hi, I have a problem with CDF parameters in analoglib/ sources like psin , pdc ,… 

    Actually there is not CDF parameters to quantification . 

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  • Eisa
    Eisa over 3 years ago in reply to Eisa

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  • ShawnLogan
    ShawnLogan over 3 years ago in reply to Eisa

    Dear Eisa,

    Four items...

    1. First, I am not sure I understand your question. 
    2. Second, Andrew specifically requests you not post a new question to a very old Forum post ( in this case over 15 years old!)

    3. Third, you appear to be using a VERY old version of Virtuouso (5.41?). I  am sure it is likely Cadence no longer supports such an old version. Don't you have access to a more recent version of Virtuouso?

    4. Finally, Andrew also requests in the Forum guidelines that you include the specific version(s) of the tools you are using. I did not see any information regarding your tool version(s) in your post. Did you forget to include the tool version(s) you are referring to?

    Shawn

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  • Andrew Beckett
    Andrew Beckett over 3 years ago in reply to ShawnLogan
    Unknown said:
    2. Second, Andrew specifically requests you not post a new question to a very old Forum post ( in this case over 15 years old!)

    Especially as this seems unrelated to the original question.

    I'm going to break my own rules here, and suggest that you look at Options->Tool Filter in the schematic window. Most likely spectre is not checked. Or you are using an analogLib that comes from some other simulator vendor.

    If that's not it, please post a new post with the information that Shawn mentions before (and read the forum guidelines - the first (pinned) post in each forum).

    Andrew

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