CS4205

Audio Codec ‘97 for Portable Computing

The CS4205 audio codec is an AC ‘97 2.1-compliant, stereo audio codec designed for PC multimedia systems. It uses industry-leading Delta-Sigma and mixed-signal technology.

The CS4205 is the first Cirrus Logic AC ‘97 audio codec to feature digital-centric mixing and digital effects. These features and advanced technology are designed to help enable the design of PC 99- and PC 2001-compliant, high-quality audio systems for desktop, portable and entertainment PCs.

Coupling the CS4205 with a PCI audio accelerator or core logic supporting the AC ‘97 interface implements a cost-effective, superior-quality audio solution. The CS4205 surpasses PC 99, PC 2001 and AC ‘97 2.1 audio quality standards. Windows® XP and 2000 drivers are available.

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Documentation

  • AC ‘97 2.1-compliant
  • Meets or exceeds the Microsoft® PC 99 and PC 2001 audio performance requirements
  • Integrated asynchronous I²S input port (ZV port)
  • Integrated high-performance microphone pre-amplifier
  • Integrated digital effects processing for bass and treble
  • Digital docking of I²S output, 3 synchronous I²S inputs
  • High-performance digital mixer with SRS 3D stereo enhancement
  • On-chip PLL for use with external clock sources
  • Dedicated microphone A/D converter
  • S/PDIF digital audio output
  • PC beep bypass
  • 20-bit stereo D/A converter; 18-bit stereo A/D converter with sample-rate converters
  • Analog, line-level stereo inputs: LINE_IN, VIDEO and AUX
  • High-quality, pseudo-differential CD input
  • Extensive power-management support
  • Package: 48-pin TQFP; lead-free assembly

Related Documents

Design Resources

Tools and Software

Part Bus Converters Feature Package
CS4205 AC '97 20-bit Stereo DAC; 18-bit Stereo ADC Sample-Rate Converter 48 TQFP/LQFP
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