The PCM1793DB is a digital-to-analog converter (DAC) that supports high-resolution audio. It has a sample rate of up to 192 kHz and a resolution of 24 bits. The device also features an I²S interface, which allows for efficient data transfer between the DAC and other components in the system. The PCM1793DB is available in a 28-pin SSOP package, making it suitable for use in a variety of audio applications.