I am testing out a EVAL-AD5380SDZ, and am using a DSP to communicate via SPI (The SDPs are out of stock)
I connected 3.3v(DVCC) (DSP does not support 5v) and 5v(AVCC) to a bench supply to J7 and J8 and updated links 1 and 2 to position B. Connected MOSI to SDIN, MISO to SDOUT, CS to Sync, and SCLK to SCLK. Held LDAC low to facilitate immediate output update. I can see data SPI in and data out using an Oscope, so I believe the input registers are set correctly, but the Vouts sit at either 0-.010v or ~4.5v.
Is there any setup issue this may be a symptom of or is an indication of an issue with the board?