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LF43881

LOGIC Devices Incorporated
Part Number LF43881
Manufacturer LOGIC Devices Incorporated
Description 8 x 8-bit Digital Filter
Published Mar 22, 2005
Detailed Description LF43881 DEVICES INCORPORATED 8 x 8-bit Digital Filter LF43881 DEVICES INCORPORATED 8 x 8-bit Digital Filter DESCRIPT...
Datasheet PDF File LF43881 PDF File

LF43881
LF43881

Overview
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 cascading multiple LF43881s to implement larger filter lengths without affecting the sample rate.
By reducing the sample rate, a single LF43881 can process larger filter lengths by using multiple passes.
The sampling rate can range from 0 to 40 MHz.
Over 1000 taps may be processed without overflows due to t...


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