Stereo output with 5-bit volume control.2 analog line-level mono inputs: PC_BEEP, PHONE_IN.4 analog line-level stereo inputs with 5-bit volume control: LINE_IN, CD, VIDEO, AUX.18-bit stereo full-duplex CODEC with independent and variable sampling rate.Compliant with AC'97 2.2 specifications.High-performance CODEC with high S/N ratio (>90 dB).Finally, internal PLL circuits generate required timing signals, eliminating the need for external clocking devices. Bundled Windows series drivers (Win95/98/ME/2000/XP/NT) and sound effect utilities (supporting Karaoke, emulation of 26 sound environments, and 10-band equalizer) provide a more comprehensive entertainment package for PC users. The ALC650 CODEC supports host/soft audio from Intel 810/815/820/845 chipsets as well as audio controller based VIA/SIS/ALI chipsets. The ALC650 also supports an AC'97 2.2 compliant SPDIF out function which allows easy connection of the PC to consumer electronic products, such as AC3 decoder/speaker and minidisk. The ALC650 integrates a 50mW/20ohm headset audio amplifier into the CODEC, which can save BOM costs. The digital interface circuitry of the ALC650 CODEC operates from a 3.3V power supply with EAPD (External Amplifier Power Down) control for use in notebook and PC applications. The ALC650 CODEC provides three 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. The ALC650 AC'97 CODEC supports multiple CODEC extensions with independent variable sampling rates and built-in 3D effects. The ALC650 incorporates proprietary converter technology to achieve a high SNR, greater than 90 dB. The ALC650 is an 18-bit, full duplex AC'97 2.2 compatible stereo audio CODEC designed for PC multimedia systems, including host/soft audio and AMR/CNR based designs.

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