This document describes the features and characteristics of HD Audio SoundMAX® Codec AD1981HD Rev. 0, including DAC channels, ADC channels, sample rates, dynamic range, S/PDIF output, etc.
This document is a technical datasheet for the AD1981HD, an HD Audio SoundMAX® Codec manufactured by Analog Devices. The device features two 24-bit/20-bit/16-bit Digital-to-Analog Converter (DAC) channels and two 20-bit/16-bit Analog-to-Digital Converter (ADC) channels designed for high-definition audio applications.
The datasheet provides comprehensive electrical specifications, including analog input/output ranges, signal-to-noise ratios, total harmonic distortion, and power supply requirements. It details the functional block diagram, pin configurations, and operating conditions for various sample rates from 8 kHz to 48 kHz.
| DAC Resolution | 24 Bits |
|---|---|
| ADC Resolution | 20 Bits |
| Analog Supply Voltage (AV DD) | 4.5 to 5.5 V |
| Digital Supply Voltage (DV DD) | 2.97 to 3.63 V |
| Operating Temperature Range | 0°C to 70°C |
The device operates between 0°C and 70°C.
The typical power dissipation for the analog supply is 275 mW.