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Setting Up An Analysis<br />

Transient Noise Analysis<br />

Figure 6-16. PSD of a Flicker Noise Signal Generated From Sinusoids<br />

Noise sources from random pulses have a continuous spectrum, whereas noise sources from<br />

sinusoids have a discrete spectrum. Noise sources from random pulses are much faster to<br />

generate than noise sources from sinusoids.<br />

Related Topics<br />

Transient Noise Analysis Principles<br />

Speeding Up Transient Noise Analysis<br />

Speeding Up Transient Noise Analysis<br />

To reduce the CPU time, parallel noise runs are performed during a single transient analysis to<br />

compute the RMS noise results, instead of several runs. This enables larger circuits to be<br />

handled, a larger number of runs, and the ability to analyze a circuit with a CPU time close to a<br />

normal (noiseless) transient analysis.<br />

Eldo will use the multiple-run MRUN algorithm (perform several runs sequentially) by forcing<br />

the MRUN parameter instead of the default single run algorithm if at least one of the conditions<br />

below is met:<br />

Eldo® User's Manual, 15.3 257

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