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  3. Pulse source for unequal duty cycle

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Pulse source for unequal duty cycle

BitanMallik
BitanMallik over 1 year ago

Hi,

Do you know any pulse source to create unequal duty cycle transient response?!
As per my knowledge "pwl" is a souce from analogLib. But I am searching an alternative source to create longer sequence.

Thanks!

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  • Andrew Beckett
    Andrew Beckett over 1 year ago

    With an analogLib vsource component, you can create either a pulse source (which can have non-50% duty cycle) or a pwl source (which can also create periodic sources too).

    Your requirement is not that clear. Are you asking to have something which changes the duty cycle over time? If so, how? You could (of course) use a pwl source with an external file and have as many time-value pairs in the file as you like.

    Andrew

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  • Andrew Beckett
    Andrew Beckett over 1 year ago

    With an analogLib vsource component, you can create either a pulse source (which can have non-50% duty cycle) or a pwl source (which can also create periodic sources too).

    Your requirement is not that clear. Are you asking to have something which changes the duty cycle over time? If so, how? You could (of course) use a pwl source with an external file and have as many time-value pairs in the file as you like.

    Andrew

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  • BitanMallik
    BitanMallik over 1 year ago in reply to Andrew Beckett

    Hi Andrew,

    Thank you for your response.

    My requirement is similar to an old post.
    https://community.cadence.com/cadence_technology_forums/f/custom-ic-design/47825/how-can-i-generate-this-repeating-pulse

    So, Varilog-A is the only solution?!

    Can you please provide a short example file (with time-value pairs) to be used in pwl source?! Is it a .txt or .csv?!

    Thanks!

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