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本帖最後由 heavy91 於 2010-7-1 02:11 PM 編輯
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5 B4 o. _! \5 D0 t0 ^* dRelation of jitter type material~~
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Jitter can be defined as the deviations in a clock’s output transition' ^0 M8 _: g: g
from their ideal positions. The deviation can either be leading or- ^; `0 \8 o+ L+ W$ F
lagging the ideal position. Jitter is usually specified in ± pico seconds.
8 S& `& S: ?6 c, o& s3 gJitter measurements can be classified into three categories:2 T. n6 ]# T; `& {8 G; _
cycle-to-cycle jitter, period jitter, and long-term jitter. All jitter measurements
U$ P3 ^2 y. P( n0 {8 ?; s) care at a specified voltage, usually Vcc/2 or 1.5V.
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