Resistor Bill of Materials Optimisation
There are 29 types of resistor, merging some types could reduce the BoM
- merge 0402 1k, 1k2, 1k4
- change 2k2 circuits to remove it (USB)
- use 39.2 Ohms for clock terminations on DDR - match Z0 without 36R
- merge the 100R size to be all 0201 or 0402 if the wattage /spsce allows
- change the memory page of the second power unit to suppress the 3k48 e.g. use 10k instead
- change 1M1 for front panel ESD to be 4M7
- use a single footprint for the 0R
- remove the 12k - 13k - 210k by using other values to make them
ideally it would be ~19 different resistor values in the end.
for the 4M7, please change to a generic component, to allow flexibility in the procurement.