29 lines
620 B
Plaintext
29 lines
620 B
Plaintext
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* Random noise test
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* internal noise source
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* one over f
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VNOI1 1 0 DC 0 TRNOISE(0n 1n 1.7 1n)
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VNOI2 2 0 DC 0 TRNOISE(0n 1n 1.4 1n)
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VNOI3 3 0 DC 0 TRNOISE(0n 1n 1.0 1n)
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VNOI4 4 0 DC 0 TRNOISE(0n 1n 0.5 1n)
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* white
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VNOI5 5 0 DC 0 TRNOISE(1n 1n 0 0)
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* both
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VNOI6 6 0 DC 0 TRNOISE(1n 1n 1 1n)
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* 250000 sample points
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.tran 1n 250u
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.control
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run
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plot v(1) v(2) v(3) v(4) v(5) v(6)
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plot v(1) v(2) v(3) v(4) v(5) v(6) xlimit 102.0u 102.01u ylimit -3n 3n
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linearize
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fft v(1) v(2) v(3) v(4) v(5) v(6)
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plot mag(v(1)) mag(v(2)) mag(v(3)) mag(v(4)) mag(v(5)) loglog xlimit 1e3 1e9
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plot mag(v(6)) loglog xlimit 1e3 1e9
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.endc
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.end
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