[SI-LIST] Re: Reference Plane
- From: "Loyer, Jeff" <jeff.loyer@xxxxxxxxx>
- To: "Zhangkun" <zhang_kun@xxxxxxxxxx>
- Date: Mon, 8 Sep 2003 08:55:37 -0700
Eeks! I would not agree with Lee's statement. There has been a LOT of =
discussion on this issue, and I would strongly suggest you work to =
understand the issues as they can have considerable impact.
Searching through the archives for "reference plane" should give you =
tons of information on the subject.
Jeff Loyer
-----Original Message-----
From: Lee Ritchey [mailto:leeritchey@xxxxxxxxxxxxx]
Sent: Monday, September 08, 2003 8:08 AM
To: Zhangkun; si-list
Subject: [SI-LIST] Re: Reference Plane
Zhangkun,
If you have designed your power subsystem correctly, the Vcc and ground
planes of you power supply will be tied to each other through less than =
10
milliohms at all of the frequencies that are in you signal, so you don't
haveto worry about a disconnect.
Lee
> [Original Message]
> From: Zhangkun <zhang_kun@xxxxxxxxxx>
> To: si-list <si-list@xxxxxxxxxxxxx>
> Date: 9/8/2003 9:50:26 PM
> Subject: [SI-LIST] Reference Plane
>
> Dear All:
> There are one driver and one receiver, which is connected by one =
trace.
The driver and receiver use GND as their reference. The trace use VCC as
its reference plane. As shown in power integrity, there is impedance
between power and ground. Therefore, there are one disconnection at the
driver and one disconnection at the receiver. Would these two =
disconnection
disgrade signal integrity?
>
> Best Regards
>
> Zhangkun
> 2003.09.08
>
>
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