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本帖最後由 heavy91 於 2010-7-1 02:11 PM 編輯
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Relation of jitter type material~~
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Jitter can be defined as the deviations in a clock’s output transition% O2 `: P! a) p0 T$ p, m+ H* C* F: N
from their ideal positions. The deviation can either be leading or
% b! Q; R' I6 i" t7 P0 P0 glagging the ideal position. Jitter is usually specified in ± pico seconds.
$ @2 q+ v7 M( \Jitter measurements can be classified into three categories:
( r5 a3 S. s) \" t1 {7 Ncycle-to-cycle jitter, period jitter, and long-term jitter. All jitter measurements# {4 K* B& `5 j7 m% ]% V: i3 ?
are at a specified voltage, usually Vcc/2 or 1.5V.
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