AD1819B is an AC'97 audio codec from ADI, supporting multiple audio input and output, with high SNR, high sampling rate and multiple features.
The AD1819B is a fully compliant AC'97 Analog I/O component designed for high-performance PC audio, modem, and DSP applications. It features a 48-terminal LOFP package and supports multiple codec configurations, DSP serial mode, and variable sampling rates from 7 kHz to 48 kHz with 1 Hz resolution.
The device includes two channels of EA ADC conversion and two channels of SA DAC conversion, along with Data Direct Scrambling (D'S) rate generators. It supports built-in Phat Stereo 3D enhancement and provides analog inputs for LINE, CD, VIDEO, AUX, microphone, and speakerphone functions.
| Resolution | 16 Bits |
|---|---|
| Sampling Rate Range | 7 kHz to 48 kHz |
| Input Impedance | 10 kΩ |
| Power Supply Range | 4.5 V to 5.5 V |
| Power Supply Current | 120 mA |
| Output Impedance | 800 Ω |
The codec supports variable sampling rates from 7 kHz to 48 kHz with a resolution of 1 Hz.
Yes, it contains a V.34-capable analog front end for supporting host-based and data pump modems.
The ADC dynamic range is 84 dB to 87 dB depending on the specific measurement conditions.