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iMX7D based design and some questions

Question asked by Mubin Icyer on Mar 13, 2019
Latest reply on Mar 15, 2019 by gusarambula


We want to design a board based on iMX7D for a mobile application (tablet). We are investigating the schematic of SABRE board and have some questions:

  1. According to block diagram of SABRE board, there are 11 voltage sources. The total power: 











Totaly ~10 watt of power! How can it be possible with a LiIon or LiPol battery? Which  powers can we "avoid" for a battery application? If we could neglect (or avoid) some power schemes, which PMIC (with battery charging functionality) could you recommend?


      2. Which SDRAM should we use, DDR3L or LPDDR3. I think LPDDR3 is suitable for package-on-package designs. Is there any other advantages of LPDDR3 over DDR3L?