ALC250 Professional AC97 Rev Audio CODEC 2.3

The ALC250 incorporates proprietary transposer technology to achieve a high SNR (100 dB), sensing logics for device reporting, and a Universal Audio Jack for improved user experience. The ALC250 AC97 CODEC supports multiple CODEC extensions with independent variable sampling rates and built-in 3D effects. Two pairs of stereo outputs with independent volume controls, a mono output, and multiple stereo and mono inputs, along with flexible mixing, gain, and mute functions provide a complete integrated audio solution for PCs. The circuitry of the ALC250 CODEC operates from a 3.3V digital power and 5V analog power supply with EAPD (External Amplifier Power Down) control for use in notebook and PC applications. The ALC250 integrates a 50mW/20Ohm headset audio amplifier into the CODEC, saving BOM costs. It also supports the SPDIF out function (complies with AC97 Rev 2.3) that offers easy connection of PCs to consumer electronic products, such as AC3 decoders/speakers and mini disk devices.