Noise in transient analysis

Discussion in 'Cadence' started by Robert Hagglund, Nov 14, 2003.

  1. Robert Hagglund

    Robert Hagglund Guest

    Dear all,

    We are simulating a mixed-signal system in the Cadence (4.4.6)
    environment and we observe the response for a given stimuli. We want to
    simultaneously observe the effect of for example thermal noise on the
    system response, but we have observed that the transient analysis that
    we used so far does not include noise. How can we include noise, or is
    there another way of including these effects while feeding predefined
    input signals to the simulation?

    For example how can we study the noise contribution in a mutitone test
    of a resistor-ladder DAC.

    Best regards,
    Robert Hägglund
     
    Robert Hagglund, Nov 14, 2003
    #1
  2. Robert Hagglund

    Hristo Brachkov Guest

    No transient noise analysis, I guess we already discussed that. Eventually
    you may run PSS+PNOISE analysis. After it you may get the noise contribution
    of each component. In the PSS analysis you may use PSIN to inject the noise.

    I'm not totally sure what is the case for Cadence 5.0, but I guess it is
    pretty much the same.


    Hristo
     
    Hristo Brachkov, Nov 14, 2003
    #2
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