SI5347-46 Datasheet, PDF (4/13 Pages) Silicon Laboratories – Data Sheet Errata for Product Revision B

Data Sheet Errata for Product Revision B
Holdover Frequency May Not Be Accurate in Holdover Mode
2. Holdover Frequency May Not Be Accurate in Holdover Mode
Description
When entering holdover mode without valid holdover history data, holdover frequency may not be accurate. After exiting holdover, the
device will operate normally.
Impact
When the holdover history is not valid (i.e., incomplete due to the holdover history window not completely occupied), the output frequen-
cy while in holdover may not be frozen at the last output frequency value before entry into holdover.
Workaround
Avoid entry into holdover until the holdover history window is valid.
Resolution
This erratum will be fixed in the next silicon revision (the device will enter holdover at the last output frequency value, even if there is not
valid holdover history data).
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