ALC250 PDF Datasheet – 2-Channel AC97 2.3 Audio Codec

Part Number: ALC250

Function: 2-Channel AC97 2.3 Audio Codec

Package: PLCC 48 Pin Type

Manufacturer: Realtek Microelectronics


ALC250 datasheet pdf


The ALC250 is a 20-bit DAC and 18-bit ADC full duplex AC’97 2.3 compatible stereo audio CODEC designed for PC multimedia systems, including host/soft audio and AMR/CNR based designs. The device incorporates proprietary converter technology to achieve a high SNR, greater than 100 dB, sensing logics for device reporting, and Universal Audio Jack to enhance user convenience.

The ALC250 AC’97 CODEC supports multiple CODEC extensions with independent variable sampling rates and built-in 3D effects. The CODEC provides 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 to provide a complete integrated audio solution for PCs. [ … ]


1. Built- in 7 Bands of Digital Hardware Equalizer for Optimizing Speaker Response

2. Single chip with high S/N ratio (>100 dB)

3. Meets performance requirements for audio on PC99/2001 systems

4. Meets Microsoft WHQL/WLP 2.0 audio requirements

5. 20-bit DAC and 18-bit ADC resolution

ALC250 Datasheet