From: Hans Mellberg ([email protected])
Date: Mon Aug 07 2000 - 08:01:28 PDT
What may work is a switchable terminator at the cost of an extra pin.
--- abe riazi <[email protected]> wrote:
> Dear Chuck and Scott:
>
> Thank you very much for your interesting replies.
>
> Another important point related to topic of termination is appraisal of internal
> vs. external termination. The internal termination appears to offer advantages of
> eliminating the need for external stubs and components. But this is achieved at
> the price of sacrificing flexibility. For instance an IC having internal series
> termination eliminates the need for an external series resistor and the associated
> stub. But the disadvantage is that series termination is suitable only for
> certain routing topologies (such as point to point routing) and not the right for
> choice for other types of topologies (such as daisy-chain ). Similar reasoning
> applies to internal parallel termination. Variations in the characteristic
> impedance of the trace can be also better dealt with by use of external
> terminators.
>
> What are your thoughts on this subject ?
>
> Thanks again.
> Abe
>
=====
Best Regards
Hans Mellberg
__________________________________________________
Do You Yahoo!?
Kick off your party with Yahoo! Invites.
http://invites.yahoo.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
****
This archive was generated by hypermail 2b29 : Wed Nov 22 2000 - 10:50:58 PST