SI5345-44-42 Datasheet, PDF (59/62 Pages) Silicon Laboratories – 10-CHANNEL

11. Top Marking
Si5345/44/42
Si534fg-
Rxxxxx-GM
YYWWTTTTTT
e4 TW
Si534fg-
Rxxxxx-GM
YYWWTTTTTT
e4 TW
64-QFN
44-QFN
Line
1
Characters
Si534fg-
Description
Base part number and Device Grade for Any-frequency, Any-output, Jitter
Cleaning Clock (single PLL):
f = 5: 10-output Si5345: 64-QFN
f = 4: 4-output Si5344: 44-QFN
f = 2: 2-output Si5342: 44-QFN
g = Device Grade (A, B, C, D). See “8. Ordering Guide” for more information.
– = Dash character.
2
Rxxxxx-GM
R = Product revision. (Refer to “8. Ordering Guide” for latest revision).
xxxxx = Customer specific NVM sequence number. Optional NVM code
assigned for custom, factory pre-programmed devices.
Characters are not included for standard, factory default configured devices.
See Ordering Guide for more information.
-GM = Package (QFN) and temperature range (–40 to +85 °C)
3
YYWWTTTTTT YYWW = Characters correspond to the year (YY) and work week (WW) of pack-
age assembly.
TTTTTT = Manufacturing trace code.
4
Circle w/ 1.6 mm Pin 1 indicator; left-justified
(64-QFN) or 1.4 mm
(44-QFN) diameter
e4
Pb-free symbol; Center-Justified
TW
TW = Taiwan; Country of Origin (ISO Abbreviation)
Rev. 1.0
59