The present application refers to a method for determining an extrinsic information input to an ECC decoder of a turbo equalizer. In one embodiment, a first loop-back signal is represented with a first number of bits, wherein the first loop-back signal comprises a signal looped back from an output of an ECC decoder. An output of a signal detector is represented with a second number of bits. An extrinsic information input to the ECC decoder is determined based at least in part on the first loop-back signal, the represented output of the signal detector, and at least one comparison with at least one predetermined threshold.