Hi every one. I want to use AD9777 as a up converter in my design. am using Spartan 3E as a signal processor and I use DDS core of xilinx to create FM signal and now I have 16 bit value which represent FM signal. data is real and I don`t use I/Q. My question is once I have real data I have to use AD9777 as a one port mode? Other question is If I have sample rate of 20MHz and the FM frequency is 1MHz at the output of FPGA, Can I yp convert My FM signal to 40MHz?