An intravascular ultrasound, IVUS, device, comprising: a flexible elongate member; an ultrasound scanner assembly disposed at a distal portion of the flexible elongate member, the ultrasound scanner assembly including an ultrasound transducer array, a logic device, and a voltage divider ; an interface coupler disposed at a proximal portion of the flexible elongate member; and a cable disposed within and extending along a length of the flexible elongate member between the ultrasound scanner assembly and the interface coupler , the cable including four conductors electrically coupling the ultrasound scanner assembly and the interface coupler ; wherein the voltage divider is arranged to supply an operating voltage (Vdd) to the logic device, and wherein a first pair of conductors of the four conductors is electrically coupled to the voltage divider , and the first pair of conductors is arranged to supply an input voltage to the voltage divider ; an interface decoder electrically coupled to the first pair of conductors, and wherein the first pair of conductors is arranged to transmit a control signal from the interface coupler to the interface decoder; and wherein the interface decoder comprises a line receiver configured to translate a three-state (PIM+, PIM-) differential signal pair from the first pair of conductors into binary control signals to configure a transmit controller and a receive controller to at least one of: designate transmitting and receiving transducers of the ultrasound transducer array, configure a length, or a duration, or a frequency, of a waveform emitted by the ultrasound transducer array; wherein a second pair of conductors of the four conductors comprises a high voltage signal for supplying a DC voltage to high power driver circuits to power the ultrasound transducers when in transmit mode, and a ground signal for providing a common ground (GND) for circuitry of the ultrasound scanner assembly. a flexible elongate member; an ultrasound scanner assembly disposed at a distal portion of the flexible elongate member, the ultrasound scanner assembly including an ultrasound transducer array, a logic device, and a voltage divider ; an interface coupler disposed at a proximal portion of the flexible elongate member; and a cable disposed within and extending along a length of the flexible elongate member between the ultrasound scanner assembly and the interface coupler , the cable including four conductors electrically coupling the ultrasound scanner assembly and the interface coupler ; wherein the voltage divider is arranged to supply an operating voltage (Vdd) to the logic device, and wherein a first pair of conductors of the four conductors is electrically coupled to the voltage divider , and the first pair of conductors is arranged to supply an input voltage to the voltage divider ; an interface decoder electrically coupled to the first pair of conductors, and wherein the first pair of conductors is arranged to transmit a control signal from the interface coupler to the interface decoder; and wherein the interface decoder comprises a line receiver configured to translate a three-state (PIM+, PIM-) differential signal pair from the first pair of conductors into binary control signals to configure a transmit controller and a receive controller to at least one of: designate transmitting and receiving transducers of the ultrasound transducer array, configure a length, or a duration, or a frequency, of a waveform emitted by the ultrasound transducer array; wherein a second pair of conductors of the four conductors comprises a high voltage signal for supplying a DC voltage to high power driver circuits to power the ultrasound transducers when in transmit mode, and a ground signal for providing a common ground (GND) for circuitry of the ultrasound scanner assembly. <EOS>