A headpiece included within a cochlear implant system (100, 600) associated with a patient, the headpiece (106, 300, 400) comprising: a housing configured to be located external to the patient; an interface assembly disposed within the housing and communicatively coupled, by way of a cable, to a sound processor (104, 602) external to the housing and further included within the cochlear implant system, the interface assembly configured to receive, from the sound processor by way of the cable, direct current power, and a self-clocking differential signal comprising a data signal encoded with a clock signal at a clock frequency, the data signal representative of data configured for use by a cochlear implant (108, 604) included within the cochlear implant system and configured to be implanted within the patient; and electronic circuitry disposed within the housing and configured to 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, at least one of the first and second carrier frequencies being distinct from the clock frequency, wirelessly transmit, to the cochlear implant based on the DC power, alternating current power at the first carrier frequency, and wirelessly transmit, to the cochlear implant based on the recovered data signal, a data-modulated AC signal at the second carrier frequency. a housing configured to be located external to the patient; an interface assembly disposed within the housing and communicatively coupled, by way of a cable, to a sound processor (104, 602) external to the housing and further included within the cochlear implant system, the interface assembly configured to receive, from the sound processor by way of the cable, direct current power, and a self-clocking differential signal comprising a data signal encoded with a clock signal at a clock frequency, the data signal representative of data configured for use by a cochlear implant (108, 604) included within the cochlear implant system and configured to be implanted within the patient; and direct current power, and a self-clocking differential signal comprising a data signal encoded with a clock signal at a clock frequency, the data signal representative of data configured for use by a cochlear implant (108, 604) included within the cochlear implant system and configured to be implanted within the patient; and electronic circuitry disposed within the housing and configured to 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, at least one of the first and second carrier frequencies being distinct from the clock frequency, wirelessly transmit, to the cochlear implant based on the DC power, alternating current power at the first carrier frequency, and wirelessly transmit, to the cochlear implant based on the recovered data signal, a data-modulated AC signal at the second carrier 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, at least one of the first and second carrier frequencies being distinct from the clock frequency, wirelessly transmit, to the cochlear implant based on the DC power, alternating current power at the first carrier frequency, and wirelessly transmit, to the cochlear implant based on the recovered data signal, a data-modulated AC signal at the second carrier frequency.