Question: Phase Noise issue simulated with SpectreRF
时间：04-08
整理：3721RD
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Question:
To do normal divider's phase noise simulate with SpectreRF(PSS + Pnoise). The Sweeptype "relative" or "absolute" have great effect to the phase noise simulation result, why?
If sweeptype set to "relative", the phase noise is about 140dBc/Hz@100KHz, but if sweeptype set to "absolute", the phase noise is about 85dBc/Hz@100KHz. Why?
Thanks,
To do normal divider's phase noise simulate with SpectreRF(PSS + Pnoise). The Sweeptype "relative" or "absolute" have great effect to the phase noise simulation result, why?
If sweeptype set to "relative", the phase noise is about 140dBc/Hz@100KHz, but if sweeptype set to "absolute", the phase noise is about 85dBc/Hz@100KHz. Why?
Thanks,