Low drop out compensation technique for reduced dynamic errors in digital-to-time converters

An apparatus of user equipment (UE), the apparatus comprising:

• physical layer (PHY) circuitry, wherein the PHY circuitry comprises radio frequency (RF) transceiver circuitry configured to transmit and receive data from a network or a mobile communication device;
• a phase modulator operatively coupled to the RF transceiver circuitry, wherein the phase modulator comprises digital-to-time converter (DTC) circuitry configured to convert a digital value to a specified signal phase of a signal transmitted by the RF transmitter circuitry;
• low drop out regulator (LDO) circuitry operatively coupled to the DTC circuitry, wherein a steady-state operation of the LDO circuitry is adjustable;
• and
• logic circuitry operatively coupled to the LDO circuitry and DTC circuitry, wherein the logic circuitry is configured to adjust the bandwidth of the LDO circuitry according to a digital value input to the DTC circuitry.

A non-transitory computer readable storage medium comprising instructions configured to control processing circuitry of a mobile radio frequency (RF) communication device to cause the processing circuitry to:

• determine a phase for a RF signal to be transmitted by a RF transceiver of the mobile RF communication device;
• provide a digital value input to a digital-to-time converter (DTC) circuitry to generate the determined phase for the RF signal;
• and
• set an adjustable bias current of a low dropout regulator (LDO) circuitry operatively coupled to the DTC circuit according to the digital value input to the DTC circuitry.

An apparatus comprising;

• a local oscillator (LO) circuit that provides a LO signal;
• digital-to-time converter (DTC) circuitry operatively coupled to the LO circuit and configured to convert a received digital value to a specified value of signal phase of the LO signal;
• and
• low drop out regulator (LDO) circuitry operatively coupled to the DTC circuitry, wherein the LDO circuitry includes a plurality of current mirrors to produce an adjustable bias current of the LDO circuitry and a value of the bias current of the LDO is determined according to the digital value received by the DTC circuitry.