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HSP43168 pdf datasheet (Dual F
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2009-01-06
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The HSP43168 Dual FIR Filter consists of two independent
8-tap FIR filters. Each filter supports decimation from 1 to 16
and provides on-board storage for 32 sets of coefficients.
The Block Diagram shows two FIR cells each fed by a
separate coefficient bank and one of two separate inputs.
The outputs of the FIR cells are either summed or
multiplexed by the MUX/Adder. The compute power in the
FIR Cells can be configured to provide quadrature filtering,
complex filtering, 2-D convolution, 1-D/2-D correlations, and
interpolating/decimating filters.
The FIR cells take advantage of symmetry in FIR coefficients
by pre-adding data samples prior to multiplication. This
allows an 8-tap FIR to be implemented using only 4
multipliers per filter cell. These cells can be configured as
either a single 16-tap FIR filter or dual 8-tap FIR filters.
Asymmetric filtering is also supported.
8-tap FIR filters. Each filter supports decimation from 1 to 16
and provides on-board storage for 32 sets of coefficients.
The Block Diagram shows two FIR cells each fed by a
separate coefficient bank and one of two separate inputs.
The outputs of the FIR cells are either summed or
multiplexed by the MUX/Adder. The compute power in the
FIR Cells can be configured to provide quadrature filtering,
complex filtering, 2-D convolution, 1-D/2-D correlations, and
interpolating/decimating filters.
The FIR cells take advantage of symmetry in FIR coefficients
by pre-adding data samples prior to multiplication. This
allows an 8-tap FIR to be implemented using only 4
multipliers per filter cell. These cells can be configured as
either a single 16-tap FIR filter or dual 8-tap FIR filters.
Asymmetric filtering is also supported.
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