PRBS (Pseudo-Random Binary Sequence) generator is a device or algorithm that produces a sequence of binary digits (0s and 1s) that appears random but is generated using deterministic methods. Key properties of PRBS generators: - Periodicity: The sequence repeats itself after a certain period, which depends on the generator and the number of bits. - Balance property: An equal number of 1s and 0s within a period. - Autocorrelation property: Low correlation with shifted versions of itself, which is crucial for channel estimation, synchronization, and encryption. Applications of PRBS generators: - Digital communication: Used for channel characterization, testing signal integrity, equalization, and error detection. - Cryptography: Generating encryption keys, stream ciphers, and random initialization vectors. - System testing: Evaluating the functionality and performance of digital systems, protocol testing, memory testing, and built-in self-test (BIST) techniques. PRBS generators can be implemented using various techniques, including Linear Feedback Shift Register (LFSR).