High Definition Audio SoundMAX Codec AD1882 Rev. A is an audio codec chip produced by Analog Devices. It supports 6 96 kHz DACs and 4 96 kHz ADCs, and an internal 32-bit arithmetic processor. It supports Microsoft Vista Premium logo and is suitable for notebooks and desktops.
The AD1882 is a high‑definition audio codec with six DACs, four ADCs, stereo headphone ports, C/LFE swapping, digital and analog PCBeep, and S/PDIF output. It is offered in a 48‑lead RoHS‑compliant LFCSP_VQ package for desktop PCs and notebooks.
The document provides a full feature list, electrical specifications, pin‑out diagrams, power‑down states, absolute maximum ratings, and ordering information. Sections include specifications, test conditions, performance data, pin configuration, HD‑Audio link details, and mechanical dimensions.
| Sample Rate | 48 kHz |
|---|---|
| DAC Resolution | 24 Bits |
| ADC Resolution | 24 Bits |
| Analog Supply Voltage | 3.3 V ±5 % |
| Digital Supply Voltage | 3.3 V ±10 % |
| Line‑Out THD+N | -85 dB |
| Signal‑to‑Noise Ratio | 95 dB |
| Input Impedance | 20 kΩ |
It supports independent sample rates of 8 kHz, 11.025 kHz, 16 kHz, 22.05 kHz, 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, and 96 kHz.
In the RESET power‑down state the codec draws about 3 mA.