LF43881 DEVICES INCORPORATED 8 x 8-bit Digital Filter LF43881 DEVICES INCORPORATED 8 x 8-bit Digital Filter DESCRIPTION The LF43881 is a video-speed digital filter that contains eight filter cells (taps) cascaded internally and a shiftand-add output stage.
An 8 x 8 multiplier, three decimation registers, and a 26-bit accumulator are contained in each filter cell.
The output stage of the LF43881 contains a 26-bit accumulator which can add the contents of any filter stage to the output stage accumulator shifted right by 8 bits.
8-bit unsigned or two’s complement format for data and coefficients can be independently selected.
Expanded coefficients and word sizes can be processed by cascadin...

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