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question about the cdf parameters of the switch instance in analoglib

mhkvy4

I am using the 6.1.7 version of cadence and I noticed that the switch instance in analoglib has the following cdf parameters. 

I was wondering if anyone could tell me why there are two fields for open switch resistance and closed switch resistance here. I looked at the reference manual for analogLib components in 6.1.7 and it only mentioned one field for open switch resistance and closed switch resistance. 

Thanks

  • Andrew Beckett

    By the looks of things you're looking at a modified version of analogLib provided by Mentor for use with Eldo. The standard Cadence analogLib has 6 parameters:

    • Open voltage
    • Closed voltage
    • Open switch resistance
    • Close switch resistance
    • Multiplier
    • Estimated operating region

    The other parameters (Model name/level, Other Eldo parameters and the second pair of Open/Close switch resistance) are coming from the Mentor implementation. Quite possibly you can use Options->Tool Filter to filter to see just the parameters for the simulator you're using. This does depend on the Eldo customisation following the convention to allow this filtering though.

    Regards,

    Andrew.

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