I'm very new to electronics, i have the following RF switch (CG2179M2) which i need to control using the output signal of my MCU, which will provide a 3.3V HIGH for transmit mode and LOW for receiption mode. The final product will be running on a battery, thus i need the most efficient way to control the RF Switch. I've been suggested that i shall use a p channel mosfet instead of a PNP transistor because the transistor will consume some power in the On state. My final product will stay most of the time in the reception mode, therefore, i need to keep one pin of the RF switch (the pin used by the reception channel) always on HIGH state. I thought to do this by connecting the drain to the pin controlling the reception of the RF switch, Source to the battery and Gate to the control pin of the MCU. So what i expect to happen is, the MCU enters the reception mode by setting LOW the control pin -> the p channel mosfet getting a LOW on Gate will set the Drain to HIGH which in turn will set the reception channel pin of the RF switch to HIGH.
These are some of the questions i have:
Is this the correct way to do this? Or shall i need a PNP transistor instead of the p channel mosfet?
I found the following mosfet on mouser, will it be fine for the job? NTR2101P
Shall i use a pull down resistor on the mosfet to keep it always open unless i set it HIGH to cut it off?
EDIT: I thought it's much easier to just use an inverter IC. I found the following one on Mouser (74LVC1G04), do i need to add passive components (resistors or capacitors) between the 74LVC1G04, RF Switch and the MCU?
Thanks in advance, Bilhan.