Avance Logic ALS-4000 Integrated PCI Audio Accelerator Chip
(single chip solution)

• High Performance PCI Subsystem control logic 
• AC-Link Interface 
• Built-in ALSFM synthesizer 
• PPMI Power Management
• Enhanced normal & digital game port 
• 3D Effect Sound

ALS-4000 : Technical Specifications

Control logic is built into the ALS4000 to support the following functions:

• Audio Input
  CD-ROM audio
  Line In
  Microphone
  PC Speaker In
• Audio Output
  Stereo Line-out
  
• Game/MIDI POrt
  External MIDI input and output
  Joystick input and MIDI connector
  

Hardware /Software Features

• High performance VLSI sound ASIC
• Compatible with DirectSound^TM , DirectSound3D^TM, Blaster^TM, Sound Blaster Pro^TM, and Sound Blaster 16 Emulation.
• PC98 Specifications Compliant
• Avance ALSFM Synthesizer
• PCI Bus Master for PCI Audio/PCI 2.1/2.2 Compliant PCI Interface
• Support DDMA, Avance Legacy Support for legacy DMAC Emulation
• 64-Voice Wavetable Synthesis w/DLS-1 Support
• Support Sound Blaster ADPCM decompression
• 3D Effect Sound
• Enhanced normal & digital game port support
• 16-bit full-duplex for concurrent recording and playback
• Single Crystal Operation(14.318Mhz)
• 5.0V digital/analog mode

Software Support

• Windows 3.1
• Windows 95/98
• Windows NT 3.51/4.0/5.0
• Windows Sound System
• DOS-based games

Compatibility

• Adlib
• All Sound Blaster Pro applications
• All Sound Blaster 16 applications
• Yamaha OPL3 FM Synthesizer
• Yamaha OPL4 Wavetable Synthesizer
• MPU-401 UART MIDI

Applications

• 16-bit stereo sound cards
• PC motherboard based sound systems
• MIDI controller
• Enhanced Game port support

Emulation

• Sound Blaster Pro^TM
• Sound Blaster 16^TM
• Sound Blaster ADPCM
• MPU-401 UART MIDI interface