cadence timing waveform

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parminder

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hi,

suppose Ton of waveform is 2ns and toff= 8ns, i have given transient time of 40ns
i want only 2 initial cycles ( upto 20ns) and rest waveform to be zero. how to do it in cadance?








THANKS
 

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Use the the pwl in analogLib. Set the required number of points and build your special waveform.
(0,0) (0.1n,1) (2n,1) (2.1n,0) (10n,0) (10.1n,1), (12n,1), (12.1n,0), (40n, 0)

Or use two regular vpulses and multiply (ahdlLib) the outputs as if they were windowing functions.
 
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@jjx Thank you so much for the response,
the first one Vpwl is working fine and it gives triangular waveform. what if i want square waveform ( as pink color square waveform shown in image ).
 

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parminder said:
@jjx Thank you so much for the response,
the first one Vpwl is working fine and it gives triangular waveform. what if i want square waveform ( as pink color square waveform shown in image ).
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Use "vpulse" source from the analogLib to get the square waveform.
 

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