Phase interpolator for mode transitions

A system, comprising:

• a mixer coupled to a subsequent stage of a phase interpolator, the mixer comprising:
• a static load configured to output a direct current (DC) signal;
• and
• a dynamic load configured to output an alternating current (AC) signal;
• and
• a processing device coupled to the phase interpolator, the processing device configured to cause the mixer to:
• enable the static load to provide a DC signal to the subsequent stage of the phase interpolator;
• while the DC signal is being provided to the phase interpolator, ramp an input signal provided to the dynamic load to cause the dynamic load to output an AC signal;
• and
• subsequent to a voltage level of the input signal being provided to the dynamic load reaching a particular value, gradually adjust a voltage level of an input signal being provided to the static load to disable the static load.

A method, comprising:

• operating a phase interpolator in a first operation mode by enabling a static load of a mixer while a dynamic load of the mixer is disabled;
• and
• switching to operating the phase interpolator in a second operation mode by:
• ramping a voltage level of an input signal provided to the dynamic load for a period of time;
• and
• in response to an indication that the period of time has passed, gradually disabling the static load to prevent glitching of the phase interpolator output signal;
• wherein the first operation mode corresponds to a direct current (DC) mode and the second operation mode corresponds to an alternating current (AC) mode.