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TSW3084EVM: Zero IF modulation

Izik
Expert 1565 points
Part Number: TSW3084EVM
Other Parts Discussed in Thread: TRF370417, DAC3484

Hi all

I am using the DAC3484 with TRF370417 modulator assembled on the EVM mentioned on the post subject. 

Basically what I'm trying to do is to modulate the LO phase in arbitrary manner. That is why I must have Zero IF and DC coupled circuit. 

Can anyone send an IQ vector CSV example of zero if modulation using the DAC3484? it can be BPSK or QPSK. Rate is not important.

I can't figure out how to generate the negative side of the unit circle for (-I, -Q side) when having a DC coupled connection between the DAC and the modulator. 

Thanks