MC9S12A32 View Datasheet(PDF) - Freescale Semiconductor
Part Name
Description
MFG CO.
'MC9S12A32' PDF : 128 Pages View PDF
MC9S12DJ64 Device User Guide — V01.20
0
1
tmin1
tnom
tmax1
2
3
tminN
tmaxN
N-1
N
Figure A-3 Jitter Definitions
The relative deviation of tnom is at its maximum for one clock period, and decreases towards zero for larger
number of clock periods (N).
Defining the jitter as:
J(N)
=
max
1 – t-N-m-----⋅a---tx-n--(--o-N--m---) ,
1
–
N-t--m---⋅--i-nt--n-(--o-N---m-)-
For N < 100, the following equation is a good fit for the maximum jitter:
J(N)
=
---j-1---
N
+
j2
J(N)
15
10
20
N
Figure A-4 Maximum bus clock jitter approximation
111
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