AK1542A Datasheet, PDF (36/37 Pages) Asahi Kasei Microsystems – 20 to 600MHz Integer-N Frequency Synthesizer

[AK1542A]
17. Marking
(a) Style
(b) Number of pins
(c) 1 pin marking:
(d) Product number
(e) Date code
: QFN
: 24
:○
: 1542A
: YWWL (4 digits)
Y : Lower 1 digit of calendar year (Year 2012 → 2, 2013 → 3 ...)
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…).
1542A _(d)
YWWL _(e)
(c)
Fig. 17 Marking
MS1399-E-00
- 36 -
2012/3