Apparatuses, systems, and methods for frequency-dependent signal modulation

An apparatus comprising:

• a primary driver circuit configured to receive a plurality of binary signals and provide a primary multi-level signal;
• a plurality of selectable equalizer paths, each including an equalizer driver and a high pass filter, wherein selected ones of the plurality of equalizer paths are configured to receive the plurality of binary signals and provide a filtered multi-level signal;
• and
• a summing node configured to provide an equalized output multi-level signal based on the primary multi-level signal and the filtered multi-level signals.

A system comprising:

• a first device including a pre-emphasis driver configured to provide a multi-level signal based on a plurality of binary signals of the first device;
• and
• a second device configured to receive the multi-level signal,
• wherein the pre-emphasis driver comprises:
• a primary driver circuit configured to receive a plurality of binary signals and provide a first multi-level signal;
• an equalizer path including an equalizer driver and a capacitor, wherein the equalizer path is configured to receive the plurality of binary signals and provide a second multi-level signal;
• and
• a summing node configured to combine the first and the second multi-level signals into an output multi-level signal.