DAC38RF89: How to output Iout and Qout at the same time?

Part Number: DAC38RF89
Other Parts Discussed in Thread: DAC38J82, DAC38J84

Hello,

In DAC38J82,It can output Iout and Qout at the same time,as figure below. How can I do it when use DAC38RF89?

In the DAC38RF89, I use pathAB of DACA  for I channel, and pathAB of DACB for Q channel.

  • Hi,

    The DAC38RF89 FMIX is only complex input, real output. To do what the DAC38J84 family does, you will have to set IinputAB = IinputCD, and QinputAB = QinputCD. See equation 3 and 4 of the DAC38RF89 datasheet for detail.