From: Greim, Michael ([email protected])
Date: Mon May 07 2001 - 11:57:45 PDT
Ok,
I'll ask the obvious question. If all you have is
peclpower and ground, why don't you simply change
layer 3 and 9 to peclpower and layer 6 to ground
and then you would have the most flexibility in your
design. Then you could route on any of the layers.
Whaddya think?
Best Regards,
Michael C. Greim Sonus Networks
[email protected] 978-589-8336
Making the world safe for digital signals everywhere
And all this science I don't understand
It's just my job six days a week
The time is gone. The email's over
Thought I'd something more to say......
-----Original Message-----
From: Saeen Malik [mailto:[email protected]]
Sent: Monday, May 07, 2001 2:38 PM
To: [email protected]
Subject: [SI-LIST] : which layers should I use for routing my high speed
traces
I have the following stackup. I need to route 644 MHz. PECL signals. Which
layers should I use
------------------ gnd
---- route layer 1
------------------ gnd
---- route layer 2
---- route layer 3
------------------ peclpower
---- route layer 4
---- route layer 5
------------------ gnd
---- route layer 6
------------------ gnd
My inclination is to use layers 2,3 and 4,5 because it would provide return
path for
both cases - switching high and low. On the other hand if I use the single
stripline layers,
the return current when the device switched high would have to go through a
cap to enter the power
pin.
What do you people think???
Saeen
_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com
**** To unsubscribe from si-list or si-list-digest: send e-mail to
[email protected]. In the BODY of message put: UNSUBSCRIBE
si-list or UNSUBSCRIBE si-list-digest, for more help, put HELP.
si-list archives are accessible at http://www.qsl.net/wb6tpu
****
**** To unsubscribe from si-list or si-list-digest: send e-mail to
[email protected]. In the BODY of message put: UNSUBSCRIBE
si-list or UNSUBSCRIBE si-list-digest, for more help, put HELP.
si-list archives are accessible at http://www.qsl.net/wb6tpu
****
This archive was generated by hypermail 2b29 : Thu Jun 21 2001 - 10:11:51 PDT