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50QMA
50QMA
N/B Maintenance
N/B Maintenance
• 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 2.3 specifications
– 14.318MHz- 24.576MHz PLL to save crystal
– 12.288MHz BITCLK input can be consumed
– Integrated PCBEEP generator to save buzzer
– Interrupt capability
• Three analog line-level stereo inputs with 5-bit volume control: LINE_IN, CD, AUX
• High quality differential CD input
• Two analog line-level mono input: PCBEEP,PHONE-IN
• Two software selectable MIC inputs applications (software selectable)
• Boost preamplifier for MIC input 50mW/20 amplifier
• External Amplifier Power Down (EAPD) capability
• Power management and enhanced power saving features
MiTac Secret
Confidential Document