ES1990中文资料ESS数据手册PDF规格书

DESCRIPTION

The ES1990 Canyon3D™2LE PCI audio accelerator

combines advanced audio functionality in a highly

integrated, single-chip, PCI solution for advanced

multichannel PC audio. With key features, including

hardware acceleration, 3D audio support, and integrated

quad DAC AC‘97 codec, the Canyon3D-2LE will engulf

the user in a 3D world of sound when used with general

applications, digital music, or games.

The ES1990 combines the advantages of a highbandwidth

PCI bus interface, proven Canyon3D digital

signal processing (DSP) hardware architecture, highfidelity

quad DAC AC‘97 codec into a single-chip package

with external AC-link for additional future functionality. The

result is robust PC audio functionality, which features

digital mixing, sample rate conversion, realtime effects

processing, multistream DirectSoundÒ hardware

acceleration, and head-related transfer function (HRTF)

filtering.

The 3D audio support and HRTF filtering are licensed

through Sensaura™ Ltd. The HRTF filtering is supported

for 2- and 4-speaker outputs, using MultiDriveä

technology. The 3D audio is supported through

DirectSound 3D, A3D 1.0, EAX 1.0, EAX 2.0, and I3DL2

advanced programming interfaces (APIs). Additional 3D

audio enhancements are available through MacroFX™,

EnvironmentalFXä, and ZoomFXä.

The ES1990 meets PC99/PC2001 and Microsoft WHQL

specifications. Device drivers for the ES1990 are

optimized for use on the Microsoft Windowsâ operating

systems and are designed specifically to take advantage

of new features available through Microsoft’s DirectXâ 8.

Operating at 3.3V digital and 5.0V analog, the ES1990 is

compliant with the Advanced Power Management (APM)

1.2, Advanced Configuration and Power Interface (ACPI)

2.0, and PCI Power Management Interface (PPMI) 1.1

specifications.

The ES1990 Canyon3D-2LE is available in an industrystandard

100-pin low-profile quad flat pack (LQFP)

package.

FEATURES

• High-performance single-chip PCI audio acceleration

• Four-speaker analog output

• Integrated high-fidelity quad AC‘97 codec

• High-quality sample rate conversion and digital mixing

• External AC-Link interface

• Multistream DirectSoundÒ3D hardware acceleration

• Sensaura 3D positional audio

• Realtime effects processing

• Full legacy DOS game support, using TDMA, PC/PCI, or

DDMA hardware implementation methods