5.1.4.1 Pre-Emphasis

A pre-emphasis booster is a symmetrical switch cap circuit whose ideal gain is determined by the ratio of charges injected/subtracted to/from output nodes versus the reference charges stored in the output load.

When operated, this circuit provides a faster rise/fall transition time to help improve eye diagram aperture – without affecting the DC operating point in the output load.

Capacitors are programmable via the 3-bit trimming field in the LVDSC_ACR register, independently for each data and clock lane.