Glossary Definition for LFSR

Definition

Linear Feedback Shift Register: A shift register in which some of its outputs are connected to the input through some logic gates (typically, an exclusive-or (XOR). A wide variety of bit patterns can be generated inexpensively, including pseudo-random sequences. Can be used as a noise generator.

Some application notes that include an LFSR:

• DC-to-DC Converter Combats EMI: Figure 2 shows how a random noise generator randomly shifts the frequency to reduce EMI.

• Pseudo-Random Number Generation Routine for the MAX765x Microprocessor

Synonyms

• Linear Feedback Shift Register

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