I was referring to AN3943 and would like to know further as how to implement the algorithm in fixed point
I have some idea going through the app note. Please confirm if the following information is correct
1. Input signals, sine/cosine: 24 bit fractional format: Q23
2. Coefficients K1d and K2d are 24 bit fractional format : Q23
3. sine/cosine functions(feedback element): not sure: may be Q23 (pl. confirm)