I²S
Serial interface for digital audio / From Wikipedia, the free encyclopedia
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Not to be confused with I²C.
"i2s" redirects here. Not to be confused with IIS (disambiguation), IS2 (disambiguation), or I2 (disambiguation).
I²S (Inter-IC Sound, pronounced "eye-squared-ess"[citation needed]), is an electrical serial bus interface standard used for connecting digital audio devices together. It is used to communicate PCM audio data between integrated circuits in an electronic device. The I²S bus separates clock and serial data signals, resulting in simpler receivers than those required for asynchronous communications systems that need to recover the clock from the data stream. Alternatively I²S is spelled I2S (pronounced eye-two-ess) or IIS (pronounced eye-eye-ess). Despite the similar name, I²S is unrelated to the bidirectional I²C (IIC) bus.
Quick Facts Type, Production history ...
Type | Serial communication bus | ||
---|---|---|---|
Production history | |||
Designer | Philips Semiconductor, known today as NXP Semiconductors | ||
Designed | 1986; 38 years ago (1986) | ||
Data | |||
Data signal | Push-pull | ||
Width |
1 data line (SD) + 2 clock lines (SCK, WS) | ||
Protocol | Serial |
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