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参数资料
| 型号： | S2028A |
| 厂商： | APPLIEDMICRO INC |
| 元件分类： | 数字信号处理外设 |
| 英文描述： | 32-BIT, DSP-CROSSBAR SWITCH, PQFP224 |
| 封装： | LDCC-224 |
| 文件页数： | 4/20页 |
| 文件大小： | 147K |
| 代理商： | S2028A |
12
33 x 32 1.25 GBIT/S DIFFERENTIAL CROSSPOINT SWITCH
S2028
July 2, 1999 / Revision C
Figure 6. AMCC Heat Sink 45-18
Thermal Management
The S2028A device requires sufficient thermal management for proper functionality and reliability. It is recom-
mended that the user investigate, define, and implement correct techniques in managing the power of this
product. Techniques to consider include: headspreading through metal layers within your PCB in addition to
heatsinking with mounted heatsink and moving; fluid controlled thermal management.
Table 2. S2028 Thermal Data
Note: The best heatsink currently available at AMCC is rated 2.1C/W with 1000 LFPM airflow. (See Figure 6).
AMCC Recommended:
TJmax = 130C
Temperature Range (0 to 70C)
Pd = 16W
224 pin LDCC: Tja = 19C/W, Tjc = 1.8 C/W
Calculation of required Tja for S2028:
Tja = (130-70)/16 = 3.75C/W
Since: Tja = Tjc + Tca
Heatsink must meet:
Tca = 3.75-1.8 = 1.95C/W
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