[SI-LIST] Source termination of LVDS drivers


Hello,
        In LVDS interfacing 100 ohm resistance is provided at receiver end to
terminate the differential lines. To absorb the reflections from receiver
end, due to mismatching between differential lines and termination
resistance, source termination at driver end is also provided. This
source termination resistance causes extra power dissipation. Partial
source termination with source termination resistance value 200 ohm shows
a good compromise for overall performance of reflection and power
dissipation.
        Instead of this one 200 ohm resistance, I use two series 100 ohm
resistance with their common point is connected to a voltage source of
1.2V. This architecture is very common for LVDS drivers to make output
offset voltage at a constant value of 1.2V.
        My question is whether the second architecture (which has 1.2V source)
also fulfills the purpose of partial source termination. If not, why?

Thanks in advance

Thanks and Regards,
Sunil C Kasanyal
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