I use the FMCOMMS1 + ZC706 to transmit the custom data as seen the below block diagram
The my custom data is followed to the format of LTE 5 MHz, 7.68MSPS consist of 32 bit serial (16 bit I and 16 bit Q). This data goes to DUC IP Core to convert from 7.68MSPS to 122.88MSPS. Axi_dac_router block convert 32 bit serial IQ to 64 bit parallel I and 64 bit parallel Q. I use hdl reference design and no OS in https://wiki.analog.com/resources/eval/user-guides/ad-fmcomms1-ebz
I transmits sine data completely. However, with custom data, my result is not good. Signal level is too low as seen the below picture.
I don't know how to config all IC in FMCOMMS1. I use the default of all configuration file.
Could you please help me config FMCOMMS1?
Thank you very much.