LF43891 Datasheet (LOGIC Devices Incorporated)

LF43891, 9 x 9-bit Digital Filter

The LF43891 is a video-speed digital filter that contains eight filter cells (taps) cascaded internally and a shiftand-add output stage.

A 9 x 9 multiplier, three decimation registers, and a 26-bit accumulator are contained in each filter cell.

The output stage of the LF43891 contains a 26-bit accum

LF43891 Features

* u u u u 30 MHz Maximum Sampling Rate 320 MHz Multiply-Accumulate Rate 8 Filter Cells 8-bit Unsigned or 9-bit Two’s Complement Data/Coefficients u 26-bit Data Outputs u Shift-and-Add Output Stage for Combining Filter Outputs u Expandable Data Size, Coefficient Size, and Filter Length u User-Selectab