SI5348 Datasheet, PDF (49/54 Pages) Silicon Laboratories – Network Synchronizer for SyncE/ 1588 PTP Telecom Boundary (T-BC) and Slave (T-SC) Clocks

12. Top Marking
Si5348 Rev D Data Sheet
Top Marking
Si5348g-
Rxxxxx-GM
YYWWTTTTTT
e4 TW
Figure 12.1. Si5348 Top Marking
Table 12.1. Top Marking
Line
1
2
3
4
Characters
Description
Si5348g-
Base part number and Device Grade.
Si5348: Packet Network Synchronizer for SyncE/1588; 64-QFN
g = Device Grade. See section “ ” for more information.
– = Dash character.
Rxxxxx-GM
R = Product revision. (See section “ ” for current revision.)
xxxxx = Customer specific NVM sequence number. (Optional NVM code assigned for
custom, factory pre-programmed devices. Characters are not included for standard,
factory default configured devices). See section “ ” for more information.
-GM = Package (QFN) and temperature range (–40 to +85 °C).
YYWWTTTTTT
YYWW = Characters correspond to the year (YY) and work week (WW) of package
assembly.
TTTTTT = Manufacturing trace code.
Circle w/ 1.6 mm (64-QFN) diam- Pin 1 indicator; left-justified
eter
e4
Pb-free symbol; Center-Justified
TW
TW = Taiwan; Country of Origin (ISO Abbreviation)
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