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Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it.

Jitter is often expressed as a percentage of clock period ...

the jitter added by the divider is much smaller than the 6dB reduction from doubling the clock period. In this case, the amount of jitter doesn't really get smaller since you are still modulating the clock edges by the same amount, but the number of clock edges is cut in half, so the jitter energy vs time period is halved. This is often how phase noise is measured.


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