sinara-hw / Phaser

Quad channel 1GS/s RF generator card with dual IQ upconverter and dual 5MS/s ADC and FPGA in EEM form factor
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heat sink DAC and up-converters #144

Closed jbqubit closed 2 years ago

jbqubit commented 2 years ago

DACs and up-converters get very hot as noted here. We see temperature dependence to carrier feedthrough compensation on up-converters. Things will be more stable with better heat sinking. Keep in mind for next revision.

gkasprow commented 2 years ago

You can glue popular RPI heatsinks and see if that helps. In the next revision, I will think of it.

gkasprow commented 2 years ago

I added such BGA heat sink to the DAC image

gkasprow commented 2 years ago

The up-converters give off the heat using the thermal pad. We can glue some heat sink to the top but I don't think that it will help much. Anyway, I added two heatsinks. image