2 intel® ich7-m audio codec ’97 controller, 2 intel, Ich7-m audio codec ’97 controller – IEI Integration WAFER-945GSE2 v1.03 User Manual
Page 33: Figure 2-10: audio codec and connectors
WAFER-945GSE2 User Manual
Page 16
Serial peripheral interface support
2.5.2 Intel
®
ICH7-M Audio Codec ’97 Controller
The Integrated AC'97 v2.3 compliant audio controller is integrated to a RealTek ALC655
audio codec. The RealTek ALC655 is in turn connected to onboard audio connectors,
which are then connected to compliant audio devices. The RealTek ALC655 is a 16-bit,
full-duplex AC'97 Rev. 2.3 compatible six-channel audio codec. The codec and the audio
connectors are shown in Figure 2-10.
Figure 2-10: Audio Codec and Connectors
Some of the features of the RealTek ALC655 are listed below:
Meets performance requirements for audio on PC99/2001 systems
Meets Microsoft WHQL/WLP 2.0 audio requirements
16-bit Stereo full-duplex CODEC with 48KHz sampling rate
Compliant with AC'97 Rev 2.3 specifications
o
Front-Out, Surround-Out, MIC-In and LINE-In Jack Sensing
o
14.318MHz -> 24.576MHz PLL to eliminate crystal
o
12.288MHz BITCLK input
o
Integrated PCBEEP generator to save buzzer
o
Interrupt capability