Part Number: DAC38RF93 Other Parts Discussed in Thread: TI-JESD204-IP , Tool/software: Hello, I am working with DAC38RF93 connected to an FPGA in which I am using IP from TI: TI-JESD204-IP. Configuration of DAC can be shown in these screenshots: I have also attached the configuration file e2e.ti.com/.../Dac38rf93.cfg With this configuration, sometimes the DAC is generating the signal correctly and sometimes not. Concretely, when I generate a baseband tone at 19.2 MHz, as the NCO is configured to 422.5 MHz, the tone should be generated at 441.7 MHz. Sometimes, what I get is a multi-tone signal, with frequencies: 422.5 MHz, 422.5 MHz +/- 38.4 MHz, 422.5 MHz +/- 76.8 MHz, 422.5 MHz +/- 115.2 MHz ... In this case, the sync signal sent to the sending part is ok, and there are no active alarms of any kind. I actually can`t discard that the problem is in the sending part. But, can you give me any ideas about what can cause such behaviour? One more thing that I don't understand: the sample frequency of the baseband signal sent to the DAC is 158.4 MHz, but the multi-tone signal is wider than that. How is this possible? Thanks, Miguel
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