Hi there,I meet problems about AD9656 recently. User Input Test Mode of ADC is OK,so i think JESD204 port works,but when it comes to normal mode ,no valid data come out from JESD port. I've tested the voltage Vref and Vcm and found that they are both 0. Input analog and digital power are OK,and Vref is in internal ref mode.Schematic is below. Is anything wrong with my schematic or should i config something through SPI to get Vref and Vcm out?