... | @@ -60,7 +60,7 @@ PCB |
... | @@ -60,7 +60,7 @@ PCB |
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- not enough power for 3.3V rail. If we assume each SFP taking 0.7W they will already use 5.3A. The DC/DC is rated for 5A and there is much more stuff supplied from that rail. Note that some SFPs, especially long range take much higher power
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- not enough power for 3.3V rail. If we assume each SFP taking 0.7W they will already use 5.3A. The DC/DC is rated for 5A and there is much more stuff supplied from that rail. Note that some SFPs, especially long range take much higher power
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- I did initial PDN analysis for VCCINT and for existing layout at 10A we will get 688mV at the centre of FPGA
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- I did initial PDN analysis for VCCINT and for existing layout at 10A we will get 688mV at the centre of FPGA
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- there is current density of over 250A/mm2 while it should not exceed 50A/mm2.
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- there is current density of over 250A/mm2 while it should not exceed 50A/mm2.
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- I'd recommend performing airflow simulation. The heatsink used seem to be too small.
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