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nope, trust me

Parallel termination is typically low-impedance driver driving Zo cable to Zo load. There are no reflections from the load back to the driver. I have designed plenty of these types of systems. Point-to-point is the simplest.

As I said, a driver impedance of Zo will half the voltage at the load. Very few systems use this technique because it reduces the signal to noise ratio and changes the voltage swing at the load.

In microprocessor buses, such as the front-side-bus in Pentium systems (GTL+), the bus is multi-master, so each driver must have a terminator as well. The drivers are always 7-10 ohms, the bus and the terminators are 50-70 ohms Zo. About 10X difference.


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