I have a question about the BPF attached on the RF out line in CYW20707 chipset.
I know that the BPF is mandatory in system.
Is is possible to replace it with LPF ?
Because now the BPF was missed in our schematic.
But there are some places for matching value.
(Pi network and 1 series place)
So I want to compose LPF instead of BPF.
Of course, if there is any problem in low frequency area below 2.4 GHz, I think we should change the schematic.
Could you please advice on the issue ?
I think BPF is mandatory because we need to pass some RF certifications like Spurious test and do not have interference on other parts in the system by a harmonic way . Even chip can work on LPF band , we will recommend you to add BPF strongly.