The CS4297A is an AC ’97 2.1 compatible stereo audio codec designed for PC multimedia systems. Using the industry leading CrystalClear delta-sigma and mixed signal technology, the CS4297A enables the design of PC 99-compliant desktop, portable, and entertainment PCs.
The CS4297A is a mixed‑signal audio codec compliant with the Intel Audio Codec ’97 specification (revision 2.1). It provides 20‑bit DAC and 18‑bit ADC conversion, multiple analog line‑level inputs, dual stereo outputs, S/PDIF digital output, and extensive power‑management features for PC multimedia systems.
The document includes detailed specifications, register maps, timing diagrams, analog hardware descriptions, pin assignments, and reference design information to aid designers in integrating the codec with an AC‑Link controller.
| DAC Resolution | 20‑bit linear coding |
|---|---|
| ADC Resolution | 18‑bit linear coding |
| Operating Temperature Range | 0 °C to 70 °C |
| Supply Voltages | AVdd 5.0 V ±5 %, DVdd 3.3 V ±5 % |
Yes, the CS4297A is an AC ’97 2.1 compatible stereo audio codec.
It requires AVdd 5.0 V ±5 % and DVdd 3.3 V ±5 % supplies.
The device is rated for an ambient temperature up to 70 °C.
Yes, it includes an S/PDIF digital audio output.