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CS4630

更新时间： 2024-09-28 22:40:19
品牌 Logo 应用领域
凌云 - CIRRUS PC
页数 文件大小 规格书
38页 503K
描述
CrystalClear SoundFusion PCI Audio Accelerator

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CS4630 数据手册

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CS4630  
CrystalClear SoundFusion PCI Audio Accelerator  
Features  
Description  
The CS4630 is a high performance upgrade to the  
CS4624 PCI audio accelerator. With support for legacy  
compatibility modes, the CS4630 enables real mode  
DOS compatibility within PCI-only audio subsystems.  
This device, combined with application and driver  
software, provides a complete system solution for  
hardware acceleration of Microsoft’s DirectSound,  
DirectSound3D, DirectInput, and Wavetable Synthesis.  
WDM drivers provide support for both Windows 98 and  
Windows 2000 .  
l 420 MIPs SLIMD DSP Architecture with  
increased internal memory for greater  
performance  
l Hardware acceleration for Microsoft  
DirectSound and DirectSound3D  
Positional Audio  
l Sensaura™ 3-D, 2 or 4 channel audio  
l EAX™ 1.0 enhanced environmental audio  
standard  
The CS4630 is based on the Cirrus Logic CrystalClear  
Stream Processor (SP) DSP core. The SP core is  
optimized for digital audio processing, and is powerful  
enough to handle complex signal processing tasks such  
as Sensaura 3D, 4-channel output, and hardware  
wavetable synthesis. The SP core is supported by a bus  
mastering PCI interface and a built-in dedicated DMA  
engine with hardware scatter-gather support. These  
support functions ensure extremely efficient transfer of  
audio data streams to and from host-based memory  
buffers, providing a system solution with maximum  
performance and minimal host CPU loading.  
l Unlimited-Voice Wavetable Synthesis with  
Effects including DLS support  
l Acoustic Echo Cancellation Hardware  
Acceleration for NetMeeting  
l 10 Band Graphic Equalization  
l High Quality Hardware Sample Rate  
Conversion (90+ dB Dynamic Range)  
l PC/PCI, DDMA, and CrystalClear Legacy  
Support (CCLS )  
l PCI 2.1 Compliant PCI Interface  
l Full duplex, 128 Stream DMA Interface with  
ORDERING INFORMATION  
CS4630-CM 128-pin MQFP 14x20x2.85 mm  
Hardware Scatter/Gather Support  
l PCI Power Management (D0 through  
D3 ), APM 1.2, and ACPI 1.0  
cold  
l Power Management Event (PME#)  
Generation within D0-D3  
cold  
l Dual AC ‘97 2.1 Codec Interface  
128-Stream  
Dual Codec  
AC ’97 2.1  
Interface  
Parameter  
RAM  
DMA Controller  
with Hardware  
Scatter/Gather  
l Asynchronous Digital Serial  
Sample  
RAM  
Interface (ZV Port)  
EGPIO  
PC/PCI &  
CCLS Legacy  
Program  
RAM  
SLIMD  
SP Core  
S/PDIF In  
S/PDIF Out  
l S/PDIF Digital Input and Output  
support for PCM and AC3  
PCI  
Interface  
Program  
ROM  
MPU-401  
MIDI Interface  
encoded 5.1 Channel Formats  
ZV Port  
Coefficient  
ROM  
l DirectInput Joystick and MPU-  
Async. Serial  
Port Interface  
Joystick  
Interface  
401 MIDI In/Out  
l 3.3 V / 2.5 V Power Supply (5 V  
tolerant I/O)  
l PC 98 and PC 99 Compliant  
This document contains information for a new product.  
Cirrus Logic reserves the right to modify this product without notice.  
Preliminary Product Information  
NOV ‘99  
DS445PP1  
Copyright Cirrus Logic, Inc. 1999  
P.O. Box 17847, Austin, Texas 78760  
(512) 445 7222 FAX: (512) 445 7581  
http://www.cirrus.com  
(All Rights Reserved)  
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