The product is a SoundMAX Codec with high-definition audio, model AD1984B Rev. 0, with Microsoft Vista Premium Logo certification, 96+ dB audio output, 90 dB audio input, WLP 3.0 and 4.0 security features, 2 stereo headphone amplifiers, internal 32-bit arithmetic, impedance and presence detection, full analog mixer, DAC inputs, 3 independent microphone bias pins, digital and analog PCBeep, 3 general-purpose digital I/O (GPIO) pins, 3.3 V analog supply voltage, 1.7 V to 1.9 V or 3.3 V digital supply voltages, 3.3 V HD-Audio link signaling voltage, advanced power management modes, 48-lead LFCSP_VQ package, 192 kHz DAC / ADC, 2 independent stereo DAC / ADC pairs, 2 stereo channels simultaneous recording and 2 stereo channels simultaneous playback, independent 8 kHz, 11.025 kHz, 16 kHz, 22.05 kHz, 32 kHz, 44.1 kHz, 48 kHz, 96 kHz and 192 kHz sampling rates
The AD1984B is a high‑definition audio codec featuring two 192 kHz DAC pairs, two 192 kHz ADC pairs, dual S/PDIF outputs, and a digital microphone interface. It is offered in a 48‑lead LFCSP_VQ package for desktop and notebook PCs.
The datasheet provides detailed specifications, pin configurations, power‑down states, and default configuration bytes, along with ordering information and mechanical dimensions.
| Sample Rate (Test Condition) | 48 kHz |
|---|---|
| DAC Resolution | 24 bits |
| ADC Resolution | 24 bits |
| Signal‑to‑Noise Ratio (Line‑Out) | 96 dB |
| Analog Supply Voltage | 3.3 V ±5 % |
| Package Type | 48‑lead LFCSP_VQ |
The device contains two independent stereo DAC pairs and two independent stereo ADC pairs.
It is supplied in a 48‑lead LFCSP_VQ (frame chip scale) package.