AC'97


Also found in: Dictionary, Wikipedia.

AC'97

(Audio Codec'97) A specification for audio and modem circuits on a PC motherboard. Introduced in 1996 by Intel, AC'97 provides six channels (5.1) of 20-bit, 48 kHz audio. It supports one audio stream per system and a two-element array microphone.

AC Link
AC'97 comprises a controller connected to analog/digital codecs by a 5-wire TDM interface called "AC Link." The two subsystems separate the digital controller, which is built into the PC chipset, from the analog circuits, which can be in a chip on the motherboard, in an interchangeable riser card or cabled close to the I/O connectors. For international certification (homologation), modem codecs are often placed on riser cards. See HD Audio and riser card.
References in periodicals archive ?
Four of the new dsPIC33 DSCs also offer a CODEC interface supporting the I2S and AC'97 protocols.
Integrated audio features include SPI, I2S and AC'97 with six-channel 24-bit audio, and it also supports a wide array of software codecs including MP3, WMA and AAC.
A very rich set of on-board legacy I/O including (4) UART serial ports, (2) ports with RS-485 support, a parallel / floppy port, PS/2 keyboard and mouse, IDE interface for up to 2 disk drives, integrated graphics, AC'97 audio, and general-purpose digital I/O pins (GPIOs).
0 ports, Gigabit Ethernet, (1) legacy IDE channel, and AC'97 audio.