SAA7780 データシートの表示（PDF） - Philips Electronics

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SAA7780

ThunderBird Q3D™ PCI Audio Accelerator

Philips Electronics 

Philips Semiconductors

Product Specification

ThunderBird Q3D PCI Audio

Accelerator

SAA7780

FEATURES

• Full H/W acceleration of 64 audio sources

• 64 H/W sample fetch channels

• 64 H/W sample rate convertors

• H/W mixing of 64 streams

• H/W DSP filter/effects/music synthesis applied

to 64 streams

• Concurrent processing of up to 384 audio sources

• Up to 64 DirectSound/wavetable sources pro-

cessed in H/W

• 64 plus DirectSound sources processed on host

• Up to 128 total DirectSound sources

• Up to 64 3D sources

• Up to 64 H/W wavetable voices

• Up to 256 host wavetable voices

• QSound3DInteractiveTM interactive positional 3D

• H/W DSP processing for maximum performance

• Stereo speaker, headphone and quad speaker

algorithms

• Proprietary technology eliminates crosstalk can-

cellation and broadens "sweet spot"

• A3DTM compatible

• QSound Multi-Speaker SystemTM stereo-to-quad pro-

cessing

• Transforms ordinary stereo applications to quad-

raphonic

• Non-3D games become immersive quad 3D

games

• Enhanced DVD movie playback

• True quadraphonic music playback from CD's,

music DVD's and MP3 players

• Effective with both stereo and Dolby Pro-LogicTM

encoded material

• QSound Environmental ModelingTM

• Add's reverb as an additional positional que

• Reverb preset's can be applied to any

DirectSound3D application

• EAXTM Compatible

• QXpanderTM and Stereo to 3D remapping

• Second Generation ActiMediaTM Programma-

bleDSP architecture

• Comprehensive Real Mode DOS and DOS window

support

• SoundBlaster ProTM Compatibility

• PC/PCI, DDMA and LAMTM PCI DMA support

• FM, MIDI stereo and MIDI quad music in Real

Mode DOS

• Supports low cost AC97 1.0 and serial stereo DAC

output

• Dual gameport accelerator with legacy and digital

joystick modes

• Integrated 16650 UART for Modem or other serial

port applications

• Windows(R) 95, Windows(R) 98, and Windows(R)

NT 5.0 (WDM) Drivers

• 0.35u TLM manufacturing technology

• 3.3v operation with 5v tolerant I/O

GENERAL DESCRIPTION

The SAA7780 ThunderBird Q3DTM is a high-perfor-

mance PCI audio accelerator targeting PC gaming

and music applications. Developed by QSound Labs

and Philips Semiconductors, it combines the most

compelling 3D, quadraphonic and music synthesis

technologies available with the powerful yet cost

effective ActiMediaTM DSP architecture. Full H/W

acceleration of DirectSoundTM, 3D audio, music syn-

thesis, and gameport functions guarantees excep-

tional system performance. QSound's new Q3DTM

algorithms not only render exceptional 3D sound-

scapes for 3D applications but add a new dimension

to stereo applications using their unique stereo-to-3D

and stereo-to-quad remapping capabilities. Three

available PCI DMA modes assure full SoundBlaster

ProTM compatibility on most platforms without addi-

tional hardware. The Intel AC97 architecture pro-

vides high audio quality using a low cost AC97

codec.

1999 Sep 30

2

853-2174 22449

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