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8.1. Thermal Cooling Requirements
System airflow to the Intel® FPGA PAC D5005 must be provided to keep the FPGA junction temperature below its 100 °C maximum specification. The temperature of the QSFP modules must also meet the module vendor’s specification, typically 70 °C or 85 °C. The following table shows the airflow requirement for the Intel® FPGA PAC D5005 during operation.
Term | Description |
---|---|
Linear Feet per Minute (LFM) | Air velocity is calculated by dividing the volumetric flow rate by the cross-sectional area of the flow passage. |
TLA | The measured ambient temperature locally surrounding the FPGA. The ambient temperature should be measured just upstream of the heatsink. |
Local Air Inlet Temperature (°C) | Required Flow Rate (CFM) |
---|---|
30 | 14.2 |
35 | 16.7 |
40 | 20.0 |
45 | 25.0 |
50 | 33.3 |