Which component consists of analog to digital converter, digital memory, digital to analog converter?

• A. Digital Scan Converter
• B. Analog Scan Converter
• C. Digital Memory
• D. Analog to Digital Converter

Answer: (A)

The digital scan converter is the component that handles the full data path from the transducer to the display by digitizing, storing, and reconstructing the image. Echoes picked up by the transducer are analog, so an analog-to-digital converter first converts those signals into digital form. That digital data is then kept in digital memory to build and manipulate the image frame by frame. Finally, a digital-to-analog converter turns the processed digital image back into an analog signal for display. This combination of ADC, digital memory, and DAC is what defines a digital scan converter. An analog scan converter would work with analog storage and display and wouldn’t involve the digital memory and converters, and a standalone memory or converter wouldn’t provide the complete data path.