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  1. #1
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    How to simulate a ring VCO using HSPICE

    I'm learning HSPICE. When simulating a ring VCO, I can't get oscillating wave. It seems to be locked,but i'm sure the connection is right for the netlist is available on Cadence Spectre. Is there any issues.

    Thanks in advance.

    •   Alt21st September 2015, 16:06

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  2. #2
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    Re: How to simulate a ring VCO using HSPICE

    In your transient simulation switch on the power supply.



    •   Alt21st September 2015, 16:50

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  3. #3
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    Re: How to simulate a ring VCO using HSPICE

    I've tried PWL voltage source on VDD,still doesn't work.
    I add a control command .option accurate=1 ,then it work.

    Thank you anyway .



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