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AD1981B:  AC'97 SOUNDMAX® CODEC

The AD1981B is used to add analog and digital audio capabilities to computer motherboards by connecting directly to the core logic. By reusing existing systems resources, this solution adds flexibility, improves sound quality, and lowers the system BOM cost by integrating components.

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  • Flexible OS support
  • Integrated AC’97 interface
  • Low risk vendor selection and source of supply
  • Fast time to market
  • Improved speaker performance -- parametric EQ improves sound on low cost speakers
  • Drivers for W2K, W98, WINXP, WINME, WHQL pre-qualified, Linux
  • BOM cost savings, more flexibility and better audio quality
  • Validated on core logic chipset families from Intel, Via, SiS, ATI, nVidia, ALI, and AMD
  • Designs inventory and drivers available now
  • # of ADCs: 2
  • # DAC: 2
  • ADC DNR (dB): 85dB
  • Compliant: 2.3
  • DAC DNR (dB): 90dB
  • Number of Channels: 2

Functional Block Diagram for AD1981B

NOTICE OF OBSOLESCENCE: Last time buy orders accepted until November 6, 2009; All deliveries must be completed by May 6, 2010.

POSSIBLE REPLACMENT: None

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