FreeLists / si-list / [SI-LIST] New and lastest reference on "Jitter, Noise, and Signal Integrity at High-Speed"

["Mike Peng Li" <mpli@xxxxxxxxxx>]

The answers to this question, or similar questions in the general areas
of jitter, noise, and signal integrity (Xtalk included) can be found in a=
 recent publication by Prentice Hall entitled "Jitter, Noise, and Signal =
Integrity at High Speed" at=20

http://www.amazon.com/Jitter-Integrity-High-Speed-Prentice-Semiconductor/=
dp/0132429616

with ISBN-13: 978-0-13-242961-0
     ISBN-10:     0-13-242961-6


Thanks!

Mike
                 =20

-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] =
On Behalf Of xuzhengrong
Sent: Sunday, December 02, 2007 6:10 PM
To: shawn.h.zheng@xxxxxxxxx
Cc: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] =B4=F0=B8=B4: Xtalk from vertical via to horizontal tr=
ace

From some paper I also learnt that parallel-plated waveguide (PPW) noise =
=3D
can
be excited from vias in PCBs due to the mode conversion. The excited PPW
noise can propagate through a PPW composed of power and ground planes. =3D=

The
propagation of the PPW noise through PCBs results in resonances in
transmission characteristics of signal vias due to the multiple =3D
reflections
from the edge of PCBs and coupling between signal vias.=3D20
I wonder how much xtalk the propagation of noise through via to via and =3D=

via
to trace results in, too.
Appreciate for any ideas.


Best Regards,
Zhengrong


-----=3DD3=3DCA=3DBC=3DFE=3DD4=3DAD=3DBC=3DFE-----
=3DB7=3DA2=3DBC=3DFE=3DC8=3DCB: si-list-bounce@xxxxxxxxxxxxx =3D
[mailto:si-list-bounce@xxxxxxxxxxxxx]
=3DB4=3DFA=3DB1=3DED Shawn Zheng
=3DB7=3DA2=3DCB=3DCD=3DCA=3DB1=3DBC=3DE4: 2007=3DC4=3DEA12=3DD4=3DC22=3DC=
8=3DD5 22:07
=3DCA=3DD5=3DBC=3DFE=3DC8=3DCB: si-list@xxxxxxxxxxxxx
=3DD6=3DF7=3DCC=3DE2: [SI-LIST] Xtalk from vertical via to horizontal tra=
ce

Hi,
I appreciate if you care to offer your help on the following two xtalk
scenarios

1.         xtalk from vertical via to horizontal trace

via

--|

----------------------------------------pwr

 |

 |

 |

 |    ----------------------trace

 |

--|------------------------------------gnd

 |

  --------------

Only read some literature that talk about via to via coupling. I wonder =3D=

how
much direct coupling is from vertical via to horizontal trace is. I =3D
think it
is minimum since the trace is close to the ground. Let us think =3D
differently.
It is well known that the current transition through via cause voltage =3D=

diff
between parallel planes (pwr and gnd) fluctuates. Does the fluctuation =3D=

then
impact signal on the trace?





2.         pwr reference impact on signal

----------------------------------------pwr









    ----------------------trace

--------------------------------------gnd

If power plane above trace is noisy but stays larger distance to trace =3D=

than
ground plane, how much does the power plane affect trace reference to
ground? Kind of similar to the first question above.



Thanks.



Shawn


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