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 PSS and PAC Help Requested 

Last post Sat, Dec 6 2008 8:12 PM by Bairdi. 0 replies.
Started by Bairdi 06 Dec 2008 08:12 PM. Topic has 0 replies and 2692 views
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  • Sat, Dec 6 2008 8:12 PM

    • Bairdi
    • Not Ranked
    • Joined on Sat, Dec 6 2008
    • Posts 1
    • Points 5
    PSS and PAC Help Requested Reply

    Hi,

    I am currently designing a switched-capacitor filter. I try to run PSS & PAC to get the transfer function in order to verify my gain and 3dB cut-off frequency. However, the PSS simulation seems like running forever. I check the Netlist and it shows:

    Periodic Steady-state Analysis 'pss' : fund = 1MHz
    Attempt to generate initial guess for DC solver failed.
    Zero diagonal found in Jacobian at ' I103.net320'
    Reordering Jacobian
    and so on....

    Can anyone please tell me how to solve this? 

    The setup I put in PSS analysis is:
    CLK1= 1/1us
    CLK2= 1/1us
    Beat Frequency= 1MHz
    Number of Harmonics = 0
    Accuracy Defaults (errpreset) = liberal

    Thank you so much.

     

    • Post Points: 5
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Started by Bairdi at 06 Dec 2008 08:12 PM. Topic has 0 replies.