IEI Technology NANO-LX2, User Manual

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NANO-LX2 EPIC NANO Motherboard
Page 20
Figure 2-7: AC’97 Codec and Audio Connector
The codec meets performance requirements for audio on PC99/2001 systems. Some of
the codec features are listed below.
Meets Microsoft WHQL/WLP 2.0 audio requirements
20-bit DAC and 18-bit ADC resolution
18-bit Stereo full-duplex CODEC with independent and variable sampling rate
Complies with AC'97 2.3 specifications
LINE/HP-OUT, MIC-IN and LINE-IN sensing
14.318MHz -> 24.576MHz PLL saves crystal
12.288MHz BITCLK input can be consumed
Integrated PCBEEP generator to save buzzer
Interrupt capability
Page registers and Analog Plug & Play
Support of S/PDIF out is fully compliant with AC'97 rev2.3 specifications
Three analog line-level stereo inputs with 5-bit volume control: LINE_IN, CD,
AUX
High quality differential CD input