Do you want the BPF also to be implemented with PSoC or only the Low Pass Filter? If you want both, then you need to have two channels - first stage being a BPF and second stage being an LPF. This document (http://www.cypress.com/file/50366/download) shows an example of two stage filtering. If you just want single stage LPF, then creator Filter Example project would be helpful.
Thankyou BMAH for your reply. The thing is, I am already using two stage band pass filter in PSOC. Besause i have no filter block left, i need to program it in C inside psoc. This is what i am thinking but it is not easy.
That is why i am asking for any other smart solution or if somebody already implemented in psoc can help me.
Looking forward for your reply.