PHASE MIXER CIRCUIT AND DUTY CYCLE CORRECTION CIRCUIT INCLUDING THE SAME

摘要

The phase mixer circuit and duty cycle correction circuit are provided to improve the resolution property of phase by driving the driver to which fast signal is input. The controller(100) senses The phase difference of the second phase signal(In2) and the first phase signal(In1) and outputs the control signal(en). The phase mixing part(200) receives the first phase signal and the second phase signal according to the control signal, and outputs the phase mixing signal(mix drv). The phase mixing part comprises the first driver(210) and the second driver(220). According to the first driver receives the first phase signal according to the control signal and outputs the first driving signal (drv1) to the common node (n1). The first driver comprises the first default driver(212) and the first weight tuning driver(211).