数字音频总线I2S总线规范，I2S spec，三线制-Many digital audio systems are being introduced into the consumer

audio market, including compact disc, digital audio tape, digital

sound processors, and digital TV-sound. The digital audio signals in

these systems are being processed by a number of (V)LSI ICs,

such as:

•　A/D and D/A converters

•　digital signal processors

•　error correction for compact disc and digital recording

•　digital filters

•　digital input/output interfaces.

Standardized communication structures are vital for both the

equipment and the IC manufacturer, because they increase system

flexibility. To this end, we have developed the inter-IC sound (I2S)

bus – a serial link especially for digital audio.