2023-08-01 08:35 AM
Hello,
I am working on a new design using the STM32WBA52CGU6. Is it possible for me to use the MLPF-WB55-01E3 to match the antenna impedance? Or what is the output impedance of this MCU?
Thank you in advance.
Solved! Go to Solution.
2023-09-06 11:12 AM
UPDATE:
For anyone interested I got an answer from ST.
My MCU (STM32WBA52) has the output matched to 50 ohms. So there is only one matching network needed to get the antenna from it's off value to 50 ohms and then it can be directly fed to the RF pin.
STM32WB MCUs are NOT matched to 50 ohms so they need the MLPF chips to be correctly matched for your 50 trace.
2023-09-06 11:12 AM
UPDATE:
For anyone interested I got an answer from ST.
My MCU (STM32WBA52) has the output matched to 50 ohms. So there is only one matching network needed to get the antenna from it's off value to 50 ohms and then it can be directly fed to the RF pin.
STM32WB MCUs are NOT matched to 50 ohms so they need the MLPF chips to be correctly matched for your 50 trace.
2024-04-07 01:32 AM
STM32WBA52 RF output not matched to 50 ohms, so they need one matching network to be correctly matched for your 50 trace. What is the output impedance of STM32WBA52 RF output? No reference materials found