ICS557-03
PCI-EXPRESS CLOCK SOURCE
Thermal Characteristics
Parameter
Symbol
Conditions
Min.
Typ. Max. Units
Thermal Resistance Junction to
Ambient
θ
θ
θ
θ
Still air
78
70
68
37
°C/W
°C/W
°C/W
°C/W
JA
JA
JA
JC
1 m/s air flow
3 m/s air flow
Thermal Resistance Junction to Case
Marking Diagram (ICS557G-03)
Marking Diagram (ICS557GI-03)
16
9
16
9
######
YYWW
557GI-03
######
YYWW
557G-03
ICS
ICS
1
8
1
8
Marking Diagram (ICS557G-03LF)
Marking Diagram (ICS557GI-03LF)
16
9
16
9
######
YYWW
######
YYWW
ICS
ICS
557G03LF
557GI03L
1
8
1
8
Notes:
1. ###### is the lot code.
2. YYWW is the last two digits of the year, and the week number that the part was assembled.
3. “LF” designates Pb (lead) free package.
4. “I” deisgnates industrial temperature range.
5. Bottom marking: (origin). Origin = country of origin of not USA.
MDS 557-03 E
8
Revision 061005
Integrated Circuit Systems ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com
ICSI [ INTEGRATED CIRCUIT SOLUTION INC ]
