The CMI8787 and CMI8788 is an audio controller which is compatible with all the popular codecs, from I2S codecs with over 120dB quality to the usual AC97 codecs. This ability gives customers the flexibility to design their products exactly the way they want them. The I2S, AC-Link, 2-wire master bus, and SPI interfaces are used to transfer audio data and control data between the CMI8787 / CMI8788 and codecs. To facilitate the connection with existing home audio electronics, the CMI8787 / CMI8788 has incorporated the S/PDIF transmitter and receiver with 192k sampling rate and 24-bit resolution.
Moreover, CMI8788 also supports Dolby Digital Live 5.1 (AC-3) and DTS Connect(DTS NEO:PC, DTS Interactive) real-time interactive content encoder. Dolby Digital Live encodes all digital audio sources on PC such as 3D game audio, VCD, MP3, WMA, Internet radio… into 5.1CH Dolby Digital stream transmitted via consumer standard S/PDIF link to external decoder/receiver and even Home Theater system. With Dolby Digital Live encoder feature, users can easily connect PC audio to consumer sound system by S/PDIF interface. It realizes Digital Home Entertainment PC in the living room. DTS Neo:PC turns any 2channel audio into 7.1 channel surround sound. DTS Interactive encodes all audio streams into DTS bit stream transmitted through S/PDIF interface.