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Design >> Analog Design >> about LSB problem
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Message started by lhlbluesky_lhl on Jan 18^th, 2012, 5:28pm

Title: about LSB problem
Post by lhlbluesky_lhl on Jan 18^th, 2012, 5:28pm

for the quantizer, in some paper, LSB=FS/2^N, N is the total bit, FS is the full scale range,

while in some other paper (such as slgma-delta modulator), LSB=FS/(2^N-1), why?

which is correct?

and how to understand the two different difinition about LSB? in the latter, why "2^N-1" is used? if N=1, how to explain this?

please help me, thanks.