Systems and methods for wirelessly transmitting power and data to an implantable stimulator

An application-specific integrated circuit (ASIC) configured to:

• receive direct current (DC) power and a self-clocking differential signal comprising a data signal encoded with a clock signal at a clock frequency;
• recover, from the self-clocking differential signal, the data signal and the clock signal at the clock frequency;
• generate, based on the recovered clock signal at the clock frequency, a first synthesized clock signal at a first carrier frequency and a second synthesized clock signal at a second carrier frequency;
• wirelessly transmit, to an implantable stimulator implemented within a patient and based on the DC power, alternating current (AC) power at the first carrier frequency;
• and
• wirelessly transmit, to the implantable stimulator and based on the recovered data signal, a data-modulated AC signal at the second carrier frequency.

A method comprising:

• receiving direct current (DC) power and a self-clocking differential signal comprising a data signal encoded with a clock signal at a clock frequency;
• recovering, from the self-clocking differential signal, the data signal and the clock signal at the clock frequency;
• generating, based on the recovered clock signal at the clock frequency, a first synthesized clock signal at a first carrier frequency and a second synthesized clock signal at a second carrier frequency;
• wirelessly transmitting, to an implantable stimulator implanted within a patient and based on the DC power, alternating current (AC) power at the first carrier frequency;
• and
• wirelessly transmitting, to the implantable stimulator and based on the recovered data signal, a data-modulated AC signal at the second carrier frequency.