Which bit coder is required to code a signal with 16 levels?(a) 8 bit(b) 4 bit(c) 2 bit(d) 1 bitThis question was addressed to me at a job interview.The doubt is from A2D and D2A Converters in section DSP – Basic Signaling of Digital Signal Processing

Which bit coder is required to code a signal with 16 levels?(a) 8 bit(

1.	Which bit coder is required to code a signal with 16 levels?(a) 8 bit(b) 4 bit(c) 2 bit(d) 1 bitThis question was addressed to me at a job interview.The doubt is from A2D and D2A Converters in section DSP – Basic Signaling of Digital Signal Processing
Answer» Correct answer is (b) 4 BIT The explanation is: To code a SIGNAL with L number of LEVELS, we require a CODER with (log L/log 2) number of bits. So, log16/log2=4 bit coder is required.

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