1. A system for digital filtering, said system including a digital filter comprising: a set of logic gates, said set being configured and arranged to receive an input vector and a phase count signal and to produce a state select vector based on at least a portion of the phase count signal and at least a portion of the input vector; a state storage including a plurality of storage banks, each storage bank configured and arranged to receive the state select vector and to produce a state signal indicated by the state select vector; and a multiplexer configured and arranged to receive the plurality of state signals and a bank select signal based on at least a portion of the phase count signal and to pass a selected state signal, said selected state signal corresponding to the bank select signal.