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S/UNI-QUAD
PMC-Sierra, Inc.
PM5349 S/UNI-QUAD
DATASHEET
PMC-971239 ISSUE 6 SATURN USER NETWORK INTERFACE (155-QUAD)
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
242
19
ORDERING AND THERMAL INFORMATION
Table 22: Ordering Information
PART NO. DESCRIPTION
PM5349-BI 304-pin Ball Grid Array (SBGA)
Table 23: Thermal Information
PART NO. AMBIENT TEMPERATURE Theta Ja Theta Jc
PM5349-BI -40°C to 85°C 22 °C/W 1 °C/W
The junction temperature (Tj) is less than 105°C for a ambient temperature (Ta) of
60°C and a 300LFM of airflow. The device must operate at Ta=70°C with 100LFM
and must not be damaged with Ta=70°C and no airflow. This assumes a dense
board and a ThetaJA of 16.
0
5
10
15
20
25
30
Conv 100 200 300 400 500
Dense Board JEDEC Board