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HD Audio Codec
General Description

The ALC260 2-Channel High Definition Audio Codec with UAA (Universal Audio Architecture) is designed for commercial Desktop and Notebook PC systems and features a 24-bit two-channel DAC and two stereo 20-bit ADCs. The codec incorporates proprietary converter technology to achieve 95dB sound quality; easily meeting PC2001 requirements and also bringing PC sound quality closer to consumer electronic devices.

The ALC260 provides two output channels, along with flexible mixing, mute, and fine gain control functions to provide a complete integrated audio solution for PCs. The DAC (with a highest sampling rate of 192kHz) and Realtek proprietary hardware content protection are applicable for DVD-Audio; previously only implemented in high-end consumer electronics but now achieved by PCs equipped with the ALC260. The ALC260 provides high-quality audio using S/PDIF to output analog data, or for multiple-source recording applications.

Realtek's proprietary impedance sensing and jack detect techniques allow device loads on inputs and outputs to be auto-detected. All analog IOs are input and output capable. Headphone amplifiers are also integrated at each analog output. All analog IOs can be re-tasked according to user's definitions, or automatically switched to suit the connecting device (Universal Audio Jack®).

The ALC260 supports 32-bit S/PDIF input and output functions, with a sampling rate of up to 96kHz, offering easy connection of PCs to high quality consumer electronic products such as AC-3 decoders/speakers, and mini disk devices.

The ALC260 supports host/soft audio from the Intel ICH6 chipset, as well as from any other HDA compatible audio controller. With power management setting, and Realtek's unique microphone application (AEC/Beam Forming/Noise Suppression) and reliable driver support, the ALC260 is the ideal choice for Commercial Desktop and Notebook PC users.

  • Single-chip multi-bit Sigma-Delta converters with high S/N ratio
  • 1 stereo DAC supports 16/20/24-bit PCM format with 44.1K/48K/96K/192kHz sample rate
  • 2 stereo ADCs support 16/20-bit PCM format with 44.1K/48K/96kHz sample rate
  • Applicable for 2-Channel 192kHz DVD-Audio solutions
  • LINE-OUT, HP-OUT, LINE1, LINE2, MIC1, and MIC2 are stereo input and output re-tasking
  • MONO line level output to subwoofer speaker for 2.1 channel applications
  • High-quality differential CD analog input
  • External PCBEEP input is applicable, and internal BEEP generator is integrated
  • Power-Off CD mode supported
  • Power management and enhanced power saving features
  • Power support: Digital: 3.3V; Analog: 3.3V/5.0V
  • Selectable 2.5V/3.75V VREFOUT
  • Two jack detection pins (each designed to detect 4 jacks)
  • Supports 44.1K/48K/96kHz/192kHz S/PDIF output
  • Supports 44.1K/48K/96kHz S/PDIF input
  • 48-pin LQFP packages (lead (Pb)-free package also available)
  • Supports external volume knob control
  • Reserve analog mixer architecture is backwards compatible with AC'97
  • –64dB ~ +30dB with 1dB mixer gain for fine volume control
  • Impedance sensing capability for each re-tasking jack
  • Built-in headphone amplifier for each re-tasking jack
  • Supports GPIOs (General Purpose Input/Output) for customized applications
  • Hardware copyright protection for DVD-Audio
  • Meets Microsoft WHQL/WLP 2.0 audio requirements
  • EAX™ 1.0 & 2.0 compatible
  • Direct Sound 3D™ compatible
  • A3D™ compatible
  • I3DL2 compatible
  • HRTF 3D Positional Audio
  • Emulation of 26 sound environments to enhance gaming experience
  • 10-band Software Equalizer
  • Voice Cancellation and Key Shifting in Karaoke mode
  • Realtek Media Player
  • Enhanced Configuration Panel and device sensing wizard to improve user experience
  • Content Copy Protection for S/PDIF interface
  • Power Management setting
  • Microphone Acoustic Echo Cancellation (AEC) and Beam Forming (BF) technology for voice application
  • Mono/Stereo Microphone Noise Suppression
  • Multimedia PCs
  • 3D PC games
  • Information appliances (IA)
  • Voice recognition
  • Audio conferencing
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