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20 lines
440 B
20 lines
440 B
Digital models
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*
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* This circuit contains a nand gate oscillator enabled by
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* a pulse input after 20nS. Node 1 is an analog node.
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* Nodes 2 and 3 are digital nodes.
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*
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.tran 1e-8 1e-7
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*
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v1 1 0 0.0 pulse(0 1 2e-8 1e-9 1e-9)
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*
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r1 1 0 1k
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*
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a1 [1] [2] atod1
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.model atod1 adc_bridge (in_low=0.25 in_high=0.75
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+ rise_delay=1e-9 fall_delay=1e-9)
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*
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a2 [2 3] 3 nand
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.model nand d_nand (rise_delay=1e-9 fall_delay=1e-9)
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*
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.end
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