That's a 100 ns tau for 10 microsecond bits. In that case, you may as
well not terminate at all. There might be some corner cases where such
a termination will reduce edge ringing.
But why not terminate with a resistor?
John
The system is battery powered. I think pure termination resistor
(parallel termination) is not an option.
Moreover, I want to join little buses, to expand a kind of global bus.
As far as I understand, if one driver
is going to send the signal towards two little buses, both terminated
at 120 ohm (multipoint buses), I am
over-clocking the transceivers (let said, min 54 load - not less). The
transcievers are: SP3078E.
I want high rates, as high as I can. The micro-controllers driving
each transceiver attached to the bus are fast
enough to all the span of rates (up to 10Mbs).
It is a distributed system.
I know I am going to break the guidelines of linear buses, when
joining two little buses. I cannot
do anything about that, more than just analyze the effects of that. In
this moment I am
trying to figure out what happen when placing AC termination at both
end of the buses.
Cheers...
Franco.