SI4704 Datasheet, PDF (29/36 Pages) Silicon Laboratories – Worldwide FM band support (64-108 MHz) integrated antenna support EN55020 compliant

8. Package Markings (Top Marks)
8.1. Si4704 Top Mark
Si4704/05-C40
8.2. Si4705 Top Mark
0440
CTTT
YWW
Figure 14. Si4704 Top Mark
0540
CTTT
YWW
8.3. Top Mark Explanation
Figure 15. Si4705 Top Mark
Mark Method:
Line 1 Marking:
Line 2 Marking:
Line 3 Marking:
YAG Laser
Part Number
04 = Si4704
05 = Si4705
Firmware Revision
40 = Firmware Revision 4.0
R = Die Revision
C = Revision C Die.
TTT = Internal Code
Internal tracking code.
Circle = 0.5 mm Diameter Pin 1 Identifier.
(Bottom-Left Justified)
Y = Year
WW = Workweek
Assigned by the Assembly House. Corresponds to the last
significant digit of the year and workweek of the mold date.
Rev. 1.0
29