AK1544 Datasheet, PDF (36/37 Pages) Asahi Kasei Microsystems – 1300MHz Integer-N Frequency Synthesizer

[AK1544]
17. Marking
(a) Style
(b) Number of pins
(c) 1 pin marking:
(d) Product number
(e) Date code
: QFN
: 24
:○
: 1544
: YWWL (4 digits)
Y : Lower 1 digit of calendar year (Year 2011 → 1, 2012 → 2 ...)
WW : Week
L : Lot identification, given to each product lot which is made in a week
 LOT ID is given in alphabetical order (A, B, C…).
1544_(d)
YWWL _(e)
(c)
Fig. 17 Marking
MS1350-E-01
36
2013/03