The Analog Devices AD1981HD is a high-quality audio codec featuring two DAC channels (up to 24-bit) and two ADC channels (up to 20-bit), supporting HD audio sample rates from 8 kHz to 48 kHz. It offers over 90 dB dynamic range, S/PDIF output, integrated headphone amplifiers, and full analog mixing. Enhanced features include jack-sensing auto configuration, power management, and up to 30 dB microphone boost, ideal for modern multimedia systems.