QI have a question about AD8340's phase control with Vibb and Vqbb. I tried it,
but the output phase seems not to change following my settings. Could you
please help explain its working mode?
AThe phase formula just expressed the phase variation, it is not absolute phase.
For example, if Vi=0.5V, Vq=0V, then the output signal will stay at the
original phase, it means no phase modification. If Vi=0V, Vq=0.5V, then the
output signal phase will increase 90 degree.