參數(shù)資料
型號: HCS12COREUG
廠商: Motorola, Inc.
英文描述: MC9S12DT128B
中文描述: MC9S12DT128B
文件頁數(shù): 107/124頁
文件大?。?/td> 577K
代理商: HCS12COREUG
MC9S12DT128B Device User Guide — V01.07
107
Figure A-3 Jitter Definitions
Therelativedeviationoft
nom
isatitsmaximumforoneclockperiod,anddecreasestowardszeroforlarger
number of clock periods (N).
Defining the jitter as:
For N < 100, the following equation is a good fit for the maximum jitter:
Figure A-4 Maximum bus clock jitter approximation
2
3
N-1
N
1
0
t
nom
t
max1
t
min1
t
maxN
t
minN
J N
max 1
t
max
N
N t
nom
( )
---------------------
1
t
min
N
N t
nom
( )
--------------------
,
=
J N
j
1
N
-------
j
2
+
=
1
5
10
20
N
J(N)
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