资 源 简 介
The HSP43168 Dual FIR Filter consists of two independent8-tap FIR filters. Each filter supports decimaTIon from 1 to 16and provides on-board storage for 32 sets of coefficients.The Block Diagram shows two FIR cells each fed by aseparate coefficient bank and one of two separate inputs.The outputs of the FIR cells are either summed ormulTIplexed by the MUX/Adder. The compute power in theFIR Cells can be configured to provide quadrature filtering,complex filtering, 2-D convoluTIon, 1-D/2-D correlaTIons, andinterpolating/decimating filters.The FIR cells take advantage of symmetry in FIR coefficientsby pre-adding data samples prior to multiplication. Thisallows an 8-tap FIR to be implemented using only 4multipliers per filter cell. These cells can be configured aseither a single 16-tap FIR filter or dual 8-tap FIR filters.Asymmetric filtering is also supported.
