ALC250 Professional AC'97 Rev Audio CODEC v.2.3

Advertisement
Advertisement

The ALC250 incorporates proprietary converter technology to achieve a high SNR (100 dB), sensing logics for device reporting, and a Universal Audio Jack® for improved user experience. The ALC250 AC'97 CODEC supports multiple CODEC extensions with independent variable sampling rates and built-in 3D effects. Two pairs of stereo outputs with independent volume controls, a mono output, and multiple stereo and mono inputs, along with flexible mixing, gain, and mute functions provide a complete integrated audio solution for PCs.The circuitry of the ALC250 CODEC operates from a 3.3V digital power and 5V analog power supply with EAPD (External Amplifier Power Down) control for use in notebook and PC applications. The ALC250 integrates a 50mW/20Ohm headset audio amplifier into the CODEC, saving BOM costs. It also supports the SPDIF out function (complies with AC'97 Rev 2.3) that offers easy connection of PCs to consumer electronic products, such as AC3 decoders/speakers and mini disk devices.The ALC250 CODEC supports host/soft audio from Intel ICHx chipsets as well as audio controller based VIA/SIS/ALI/AMD/nVIDIA/ ATI chipsets. Bundled Windows series drivers (Windows 98/ME/NT/2000/XP), EAX/ Direct Sound 3D/ I3DL2/ A3D compatible sound effect utilities (supporting Karaoke, 26 types of environment sound emulation, 10-band software equalizer), HRTF 3D positional audio and SensauraO 3DPA (optional) provide an excellent entertainment package and game experience for PC users. An integrated 14.318MHz -> 24.576MHz PLL circuit generates the required clock and eliminates the need for an external crystal. In addition, the ALC250 is embedded with a 7-band digital hardware equalizer to optimize speaker frequency response for mobile PCs. Features * Built-in 7-band digital hardware equalizer to optimize speaker response * Single chip with high S/N ratio (100 dB) * Meets performance requirements for audio on PC99/2001 systems * Meets Microsoft WHQL/WLP 2.0 audio requirements * 20-bit DAC and 18-bit ADC resolution * Complies with AC'97 Rev 2.3 specifications o LINE/HP-OUT, MIC-IN and LINE-IN sensing o 14.318MHz -> 24.576MHz PLL to eliminate crystal o S/PDIF output o 12.288MHz BITCLK input o Integrated PCBEEP generator to save buzzer o Interrupt capability o Page registers and Analog Plug & Play * 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 inputs: PCBEEP, PHONE-IN * Supports double sampling rate (96KHz) for DVD audio playback * Two software selectable MIC inputs * +6/12/20/30dB boost preamplifier for MIC input * Stereo output with 6-bit volume control * Mono output with 5-bit volume control * Headphone output with 50mW/20Ohm amplifier * 3D Stereo Enhancement * Multiple CODEC extension capability * External Amplifier Power Down (EAPD) capability * Power management and enhanced power saving features * Stereo MIC record for AEC/BF application * DC Voltage volume control * Auxiliary power to support Power-Off CD * Adjustable VREFOUT control * 2 Universal Audio Jacks (UAJ)® for front panel * Supports 32K/44.1K/48K/96KHz S/PDIF output * Supports 32K/44.1K/48KHz S/PDIF input * Power support: Digital: 3.3V; Analog: 3.3V/5V * Standard 48-pin LQFP package * EAXO 1.0 & 2.0 compatible * Direct Sound 3DO compatible * A3DO compatible * I3DL2 compatible * HRTF 3D Positional Audio * SensauraO 3DPA Enhancement (optional) * 10-band software equalizer * Voice cancellation and key shifting in Karaoke mode * AVRack® Media Player * Configuration Panel for improved user experience Applications * Multimedia PCs * 3D PC games * Information appliances (IA) * Voice recognition * Audio conferencing

The ALC250 incorporates proprietary converter ...

 
  • Freeware
  • 2.5 Mb
  • 1806
  • Free
 
 

Review ALC250 Professional AC'97 Rev Audio CODEC

  • captcha
 
 
New Rippers & Encoders software
  • DVDFab File Transfer  v.11.0.2.3DVDFab File Transfer is a handy and convenient file transfer program to transfer the converted files on your PC to devices such as iPod, PSP, and ZUNE with fast speed. Besides, you are free to set the order of the converted files with it.
  • DVDFab All-In-One  v.11.0.2.5DVDFab All-In-One is a versatile combo of all DVDFab products: DVD Copy, DVD Ripper, Blu-ray Copy, Blu-ray Ripper, Blu-ray to DVD Converter, DVD to Blu-ray Converter, DVD Creator, CinaviaRemoval HD, Blu-ray Creator, Video Converter, and File Transfer ...
  • DVDFab Screen Recorder & Editor for iOS  v.11.0.2.3DVDFab Screen Recorder & Editor for iOS can record everything on an iPhone, iPad or iPod touch screen and allows users to make enhancements with in-depth editing feature.
  • DVDFab Blu-ray to DVD Converter  v.11.0.2.1DVDFab Blu-ray to DVD Converter, the first full-featured and the most powerful Blu-ray to DVD converter in the world, can convert any Blu-ray to DVD-Video disk playback on DVD player or DVD player software, with super fast speed and great output.
  • Wondershare DVD to WMV Converter  v.3.2.49Wondershare DVD to WMV Converter is a very powerful DVD to WMV converter program with very intuitive and user-friendly interface. It can rip DVD to WMV with excellent video and audio quality. This professional DVD to WMV Converter supports various ...
  • ApecSoft RMVB WMV to AVI Converter  v.2.10ApecSoft RMVB WMV to AVI is a powerful video format converter. It can convert almost all real video(rmvb,rm,ram) and windows media video(wmv1,wmv2,wmv3,asx,asf) to Divx AVI. Also you can convert vob mov flv mpeg mpg 3gp mp4 to Divx AVI. Apecsoft AVI ...