22 Chapter 1
Audio Interface
1394 Interface
Item Description
Chip Realtek ALC888 (high definition audio)
Feature • 48-pin LQFP green package
• High performance DACs with 95dB SNR (A-Weighting), ADCs with 85dB
SNR (A-Weighting)
• Meets performance requirements for audio on PC2001 systems and
Microsoft WLP 2.x
• Ten DAC channels 16/20/24bit PCM format support for 7.1 sound
playback, plus two channels of independent stereo sound output
(multiple streaming) through the front panel output
• Two stereo ADCs 16/20/24bit PCM format support, one for stereo
microphone, one for legacy mixer recording
• All DACs 44.1/48/96/192KHz sample rate support
• 16/20/24bit S/PDIF out supports 44.1/48/96/192KHz sample rate.
• 16/20/24bit S/PDIF in supports 44.1/48/96KHz sample rate.
• Up to four channels of microphone array input are supported for AEC/BF
application.
• High-quality analog differential CD input
• External PCBEEP input and built-in digital BEEP generator
• Reserve analog mixer architecture for backward compatibility with
AC’97
• Wide range (-80dB ~ +42dB) volume control with 1.5dB resolution of
analog to analog mixer gain
• Two GPIOs (General Purpose Input/Output) for customized applications
• Digital power support: 3.3V
• Analog power support: 3.5V ~ 5.25V
• Enhanced S/PDIF in circuitry ensures compatibility with consumer DVD
players.
• Pin compatible with the ALC880 and ALC882
Item Description
Chip TSB43AB23PDTG
Feature • Compliant with the IEEE 1394-1995 Release 1.0 and support IEEE 1394a
P2000 specifications with full 1394a P2000
• Compliant with the PCI V2.2 specification and card bus interfaces
support
• Three 1394a ports enable connections at 100/200/400Mbps
• Equipped with an OHCI compliant programming interface and I
2
C
EEPROMs or four-wire serial ROMs
