High-speed FIR-filter architectures with scalable sample rates

FIR (finite impulse response) filters are widely used in digital signal processing. In this paper new architectures for high speed FIR filters with programmable coefficients are presented. Special efforts are undertaken to develop a structure that is well suitable for different data rates and therefore may be used within a tool (filter generator) that generates demand driven dedicated filter structures. The presented structure leads to highly efficient designs that are useable within different environments. The basic design structure is introduced and implementation considerations are discussed. Results of synthesis runs are presented