MB15F63UL Datasheet, PDF (29/36 Pages) Fujitsu Component Limited. – Dual Serial Input PLL Frequency Synthesizer

MB15F63UL
Note that the problem cannot be avoided when the setting value of the swallow counter (A) is odd-numbered
(also applicable to the 806.2 MHz environment, used in the above explanation).
However, the spurious signals can be reduced by changing fr (reducing it) to limit the band. Note that in this
case, the comparison frequency itself changes, resulting in a change in the loop band and deterioration of CN.
Therefore,each case should be handled in accordance with the system used. Some example waveforms are
attached to the following.
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