I want to build a bidirectional wireless communication system with an operating frequency of SUB-100MHz. The system requirements are relatively small. NOW， Can I use ADF7021 to complete my request？
I see that its minimum operating frequency is 80MHZ, right? Can it send and receive normally at this frequency?
ADF7021 can operate at 80 MHz. However, none of the eval boards are designed to operate at sub-100MHz.
You can however use EVAL-ADF7021DBZ5 which has no RF Match/Loop Filter inserted and design the RF…
You can however use EVAL-ADF7021DBZ5 which has no RF Match/Loop Filter inserted and design the RF Match/Loop Filter yourself.
For additional support, I would suggest you to contact your local FAE.