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Communication SystemsPCM

If a PCM system uses 8 bits per sample, the number of available quantization levels is?

  • A8
  • B16
  • C128
  • D256
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Correct Answer: D. 256
Explanation: For n bits, the number of binary quantization levels is L=2^n. For n=8, L=256.
Reference: Standard communication systems: pcm
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