AK1543 Datasheet, PDF (34/35 Pages) Asahi Kasei Microsystems – 1300MHz Delta-Sigma FractionalSigma -N Frequency Synthesizer

[AK1543]
17. Marking
(a) Style
(b) Number of pins
(c) 1 pin marking:
(d) Product number
(e) Date code
: QFN
: 24
:○
: 1543
: YWWL (4 digits)
Y:
WW:
L:
Lower 1 digit of calendar year (Year 2010 → 0, 2011 → 1 ...)
Week
Lot identification, given to each product lot which is made in a week
 LOT ID is given in alphabetical order (A, B, C…).
1543_(d)
YWWL _(e)
(c)
Fig. 17 Marking
MS1206-E-02
34
2013/03