Transmitter interpolating clock signal, communication device including the same, and method of operating the same

Abstract

Disclosed is a transmitter including a phase interpolator configured to generate an internal four-phase clock signal based on a four-phase clock signal including a first clock signal, a second clock signal, a third clock signal, and a fourth clock signal, a data path configured to generate a path data signal based on a data signal and the internal four-phase clock signal, a driver configured to generate a transmission data signal based on the path data signal and the four-phase clock signal. The driver is further configured to provide the phase interpolator with a control signal indicating a first phase state, a second phase state, or a third phase state based on a first path bit signal of the path data signal, the first clock signal, and the fourth clock signal. The phase interpolator is further configured to interpolate the internal four-phase clock signal based on the control signal.