Realtek AC97 ALC650 Audio Codecs
The ALC650 or Realtek AC97 is an 18-bit and is fully duplex with the AC’97 2.2 compatible stereo audio format. this Realtek Codec was designed for computer multimedia systems which includes both host/soft audio and also the now popular AMR/CNR based designs.
The Realtek AC97 ALC650 codec now also incorporates a proprietary technology converter which is used to achieve a higher SNR being far greater than 90 dB. The ALC650 AC’97 CODEC also supports the multiple CODEC extensions with an independent variable sampling rate and with built-in 3D effects.
The Realtek ALC650 AC97 also integrates a 50mW/20ohm which is for use with a headset amplifier into the CODEC, which can save BOM costs.

