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Problem with Spectre AC analysys

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ramesh441

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When I use spectre simulation for AC analysys of any Circuit
I am getting a response as zero and db20 of AC is -6.4kdb at every frequency

Are ther any settings to be changed???

Thanking you
Ramesh
 

JoannesPaulus

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you need to set AC=1 in your input voltage source.
 

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