W2302EP Datasheet, PDF (23/26 Pages) Keysight Technologies – Quick Start for Signal Integrity

Explore the Design Space at 8 Gigabits per Second: Equalization
–– Save
the 5 Gbps version of the schematic.
–– Change the data rate of Tx_Diff1 and EyeDiff_Probe1 to
8 Gbps.
–– File > Save Design As… and enter pcie_fext_8.
–– Simulate
did before.
and compare with the eye diagram we
How can we improve our margin? The channel impairs the
signal by acting like a low pass filter, and introducing echo-
like reflections. These smear out the impulse response.
We can add an equalizer at the receive end that mitigates
these impairments. An equalizer is simply a filter whose
response is the inverse of the channel response.
Mitigate channel impairments with an equalizer
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