Hybrid transmitter with calibration

A system, comprising:

• a transmitter, wherein the transmitter comprises:
• a pull-down circuit coupled between an output of the transmitter and a first rail, wherein the pull-down circuit has a signal input coupled to a first input of the transmitter;
• a first pull-up circuit coupled between a second rail and the output of the transmitter, wherein the first pull-up circuit has a signal input coupled to a second input of the transmitter;
• a second pull-up circuit coupled between the second rail and the output of the transmitter, wherein the second pull-up circuit has a signal input coupled to the first input of the transmitter;
• and
• a control circuit coupled to a control input of the first pull-up circuit and a control input of the second pull-up circuit, wherein the control circuit is configured to:
• output a first control signal to the control input of the first pull-up circuit, wherein the first control signal controls a drive strength of the first pull-up circuit, and
• output a second control signal to the control input of the second pull-up circuit, wherein the second control signal controls a drive strength of the second pull-up circuit.