SI5347-46 Datasheet, PDF (7/13 Pages) Silicon Laboratories – Data Sheet Errata for Product Revision B

5. Possible Output Frequency Transients
Data Sheet Errata for Product Revision B
Possible Output Frequency Transients
Description
Possible output frequency transients when switching between clocks that are not the same exact frequency.
Impact
The device’s output clocks may overshoot (frequency) temporarily.
Workaround
In general, hitless switching can be used to minimize the frequency overshoot. Since this behavior is highly frequency plan dependent,
contact Silicon Labs if you need additional support.
Resolution
This behavior will be addressed in the next silicon revision. The future silicon revision includes an option to enable ramp switching, if the
application can accommodate the additional time required to measure the target frequency.
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