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PCM word size can be described by(a) Time period(b) Symbol rate(c) Number of quantization levels(d) None of the mentionedThe question was posed to me during a job interview.This interesting question is from Baseband Transmission-2 topic in division Formatting and Baseband Modulation of Digital Communications

Answer»

Right option is (c) NUMBER of quantization levels

For explanation: Each analog sample is transformed into PCM WORD made up of a group of bits. The PCM word SIZE can be described by number of quantization levels ALLOWED for each sample.



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