I want to use a T/R switch IC to select the filters. So I made a small board test HMC784AMS8GE IC like the schematic below:
The input (IN1) is the sine signal. But when I test, both OUT1 & OUT2 have the same signal as IN1 and both outputs (RF1, RF2) are always ON. Although, I changed the Control pin (A, B) following the datasheet. It means the RF switch inside the IC did not work properly when adjusting the value of the control inputs(A, B). Could you help me to solve this problem? Thank all guys.