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using the switch in the analoglib

Iaf22

Hello, i'm trying to use the ideal switch (relay) from cadencelib to create a 50MHz clock signal from a variable DC power supply. I have connected the relay with a vsource with the required frequency and set the switch open to 0v and close to 3.3v and the vsource with a pulse of 20MHz from 0 to 3.3v. Now whenever i simulate it i get the same dc voltage on the input and not the required clock. Does anyone know why this is happening?

  • Iaf22
    in reply to Andrew Beckett

    well that was my setup and i got that on the output. A high gain! however the pulsed signal is 1V and the output is not always going to 0V

  • Andrew Beckett
    in reply to Iaf22

    You need to use pvcvs2 or pvcvsp with the Num of controlling voltages set to 2. If you use pvcvs then that only has a single (differential) input, and so what you would be getting then is that the fourth coefficient is the fourth power of the difference of the two signals, which is not what you want!

    Andrew.

  • Iaf22
    in reply to Andrew Beckett

    yes that's my fault i didn't take care of the name it works fine thanks a lot!

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