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AD8346

Question asked by radio55 on May 8, 2014
Latest reply on May 9, 2014 by THA

I'd like to use the AD8346 IQ mod with single ended I and Q baseband inputs. Due to size constraints, I do not have the space to use either a transformer or single ended to differential amplifier. What I'd like to do is bias up all the pins to the proper common mode voltage with a resistor network and only drive I+ and Q+, leaving I- and Q- either floating or grounded at baseband frequencies. I dont have an EVB to test this out, but my concern is that I will have issues with carrier feed through issues by doing this. Does anyone have past experience doing this, or other ideas?

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