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DAC3283EVM: Only real input & output

Part Number: DAC3283EVM
Other Parts Discussed in Thread: DAC3283

Hi,

I want to use real data only for dac3283evm.

I don't use mixer and will just use IOUTA1 & IOUTA2.

Are IOUTB1 & IOUTB2 the Q channel? then I don't need to use them.

How can I configure dac3283evm?

please advise to me.

BR,

Brian

  • Brian,

    If you want real data, this device will allow you to have one or two channels of real data. Each DAC has a differential output. One channel output is comprised of IOUTA1 and IOUTA2 and the other is IOUTB1 and IOUTB2. To get these outputs you would bypass the mixers.  If you do not want any interpolation, you would bypass these blocks as well. There will be no I and Q data just real data that is differential. On the EVM you would bypass the modulator and route the DAC outputs to the two transformers to get single-ended real data out.

    Regards,

    Jim

  • Hi,

    I tried to do as you instructed.

    However, I had a trouble in implementing DAC3283EVM.

    I only use DAC3283 and don't use CDC62005 & TRF3720. 

    So, I only set DAC3283 using DAC3283GUI Software Control program.

    After setting it, I measured my signal through J3/J4 via oscilloscope, but output signal was not generated....

    I don't know why it is not generated...

    Please advise to me...

    BR.