AD1819B is an audio codec that supports a variety of functions, including multiple audio inputs, support for Modem sampling rates and filtering, and support for 3D stereo enhancement.
The AD1819B SoundPort codec is designed for high‑performance PC audio, modem, and DSP applications and complies fully with the Intel AC’97 Component Specification. It integrates stereo ADCs, DACs, an analog mixer, and programmable gain amplifiers, supporting up to three codecs per AC‑Link and a DSP serial mode.
Key features include a 48‑terminal LQFP package, 16‑bit resolution for both conversion paths, dynamic range up to 90 dB, variable sample rates (7 kHz‑48 kHz) with 1 Hz resolution, and built‑in Phat Stereo 3D enhancement. The device also provides telephony modem support, ESD protection, and extensive programmable gain/attenuation options.
| Sample Rate Range | 7 kHz to 48 kHz (1 Hz resolution) |
|---|---|
| Resolution (ADC/DAC) | 16 bits |
| Dynamic Range (ADC) | 84‑87 dB |
| Full‑Scale Output Voltage (LINE_OUT) | 1 V rms (2.83 V p‑p) |
| Power Supply Range (Analog & Digital) | 4.5 V to 5.5 V |
| Package | 48‑Terminal LQFP (ST‑48) |
The AD1819B supports programmable sample rates from 7 kHz up to 48 kHz with a 1 Hz resolution.
Both the analog and digital supplies must be between 4.5 V and 5.5 V.
Both the ADC and DAC provide 16‑bit resolution.