AK1223 Datasheet, PDF (17/18 Pages) Asahi Kasei Microsystems – 8500MHz High Linearity Mixer

[AK1223]
13. Marking
(a) Style
(b) Number of pins
(c) 1 pin marking:
(d) Product number
(e) Date code
: UQFN
: 16
:○
: 1223
: 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…).
1223(d)
YWWL(e)
●(c)
Fig. 12 Marking
MS1505-E-01
17
2013/05