1. This is a screenshot taken from the schematic document of the AD9695-1300EBZ evaluation board. It shows that the upper left node (the input to U501) should be at 2.4V, and the output should be at 1.8V. However, because these are DC signals, the L501 transistor will be an extremely low impedance, and the input/output of the U501 chip look like they would be shorted. When the schematic sheets says "Bypass path to drive all 1P8 from switcher", does this mean that the L501 inductor was initially included in case the 1.8V was being supplied directly by the U400 chip?
2. If that is true, why is it that this inductor is included on the actual AD9695-1300 evaluation board? Should I remove L501 and R516 when making my own board?
3. Additionally, I see a lot of components with DNI (do not installed), but all of them were installed on the actual board. I was told on this forum that the P601 and P600 component shown below to use if the SPI signals are not being generated from the FPGA that is connected over the FMC connectors. However, even when the SPI signals are not being sent in from an external chip, the board still was made with these components on them. Should I take all of these out when designing my own board for the AD9695?
