SI4730-D50 Datasheet, PDF (27/34 Pages) Silicon Laboratories – BROADCAST AM/FM RADIO RECEIVER

7. Package Markings (Top Marks)
7.1. Si4730/31 Top Mark
Si4730/31-D50
3050
DTTT
YWW
3150
DTTT
YWW
7.2. Top Mark Explanation
Mark Method:
Line 1 Marking:
Line 2 Marking:
Line 3 Marking:
YAG Laser
Part Number
30 = Si4730, 31 = Si4731.
Firmware Revision
50 = Firmware Revision 5.0.
Die Revision
D = Revision D 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 work week of the mold date.
Rev. 1.0
27