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AC'97
(redirected from AC97)

   Also found in: Acronyms, Wikipedia 0.01 sec.
AC'97
(Audio Codec'97) A specification for building audio and modem functions on a PC motherboard. Introduced in 1996 by Intel, AC'97 provides 20-bit, 48 kHz audio with six channels (5.1). It supports one audio stream per system and a two element array microphone.

Controller and Codec
AC'97 is made up of 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, a riser card or cabled close to the I/O connectors.

For international certification (homologation), modem codecs are often placed on riser cards, which can be easily interchanged. See HD Audio and riser card.


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0 ports, onboard AC97 audio (front header), single PCI-Express Gigabit LAN, and U320 single-channel SCSI (PDSG4 only).
0 ports, up to 120GB hard drive, three PCI expansion slots, optional combo drive, ADI AC97 audio and Intel Extreme Graphics 2.
Silicon Laboratories, the industry leader in silicon DAAs, provides tiny, two-chip, globally compliant DAAs for use in both PCI and AC97 (Audio Codec 1997) interfaces.
 
 
 
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