AC'97

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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 ?
0 'On the Go' interface, memory stick controller, MMC/SD/SDIC interface, 12S and AC '97 interfaces, three SSP and three asynch serial interfaces, keypad interface, GPIO and four PWM interfaces.
0 interface; Memory Stick controller; MMC/SD/SDIC interface; I2S and AC '97 interfaces; three SSP and three Asynch serial interfaces; keypad interface; GPIO and four PWM interfaces, the company claims.
0 ports, an IEEE 1394 port, S-video outlet, 15-pin VGA port, audio outlet, Type II PC card/cardbus slot and is AC '97 v2.
a supplier of PC audio chip solutions, has introduced a new multi-channel AC '97 compliant PC audio codec that is capable of significantly improving the end-user's PC gaming and musical experience.
Other functions supported by the 815E include DRAM control, PCI bus arbitration logic and interface, high-performance PCI, USB interface, RTC, VN-RAM, AC '97 Codec for sound, standard PC timers, Ultra DMA and interrupt logic.
The 700 Series Color goes beyond standard Pocket PC devices to support the AC '97 audio standard for high-quality sound.
0 ports, serial parallel ports, floppy interface, IrDA interface and AC '97 audio.
0 USB ports, 2 front & 4 rear -- Integrated ATA/100 with SMART II -- Integrated AC '97 Audio with front and rear jacks -- Supports optional Dell USB memory key -- LegacySelect 2.
Devon Worrell, Senior Engineering Manager in Intel's System Software Engineering, states, "The new AC '97 2.
Nasdaq:CRUS) continued to enhance its Total-E(tm) product offerings for the PC and home entertainment markets today by introducing its CS4202, an AC '97 2.
0 USB ports, 2 front & 4 rear Integrated ATA/100 with SMART II -- Integrated AC '97 Audio with F&R jacks -- LegacySelect 2.
The Hannacroix concept PC features Cirrus Logic's six-channel AC '97 audio on its motherboard utilizing the CS4201 AC '97 codec chip and two CS4334 digital-to-analog converters.