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Reference design redesign

Question asked by Almaz Khamidullin on Jun 19, 2019
Latest reply on Jun 19, 2019 by igorpadykov


We have working custom pcb with IMX6ULL based on reference design (number 29364) with only 9 components placed on bottom side of pcb:

custom board

There are DDR3 relative parts:

So, I am wondering can I move this components:

- C204 decoupling capacitor for DRAM_VREF;

- R202, R203, R205 resistors that ties to gnd DRAM_SDCKE1, DRAM_SDCKE0 and ZQPAD signals;

- R206 that terminates DRAM_SDCLK0_P and DRAM_SDCLK0_N signals (increases traces length);

- C227, C229, C228 and C230 that terminates DRAM_SDQS0_P, DRAM_SDQS0_N, SDQS1_P and SDQS1_N

little bit away from their current position to place them on top side of pcb? We want to reduce soldering price twice)