Crystal CS4280 User Manual

PCI Audio Accelerator

User’s Guide

1

1. INTRODUCTION

The Crystal CS4280 is a PCI audio accelerator with integrated legacy games support
suitable for desktop PC designs. When combined with driver software and an AC’97
codec, this device provides a complete high quality audio solution. Legacy
compatibility is achieved via PC-PCI, DDMA, and CrystalClear Legacy Support.
This product includes an integrated FM synthesizer and Plug-and-Play interface. In
addition, the CS4280 offers power management features.

NOTE : It is recommended to use ACTIVE SPEAKER in order to activate your sound
card properly.

1.1 Checklist

♦ Crystal CS4280 Sound Card x 1
♦ Driver CD x 1
♦ Manual x 1

2. FEATURES

• Chipset: Crystal CS4280

• Bus form: 32 bit PCI bus master, PCI 2.1 compliant Plug and Play compatible

• Audio Converters : 16-bit stereo sigma-delta ADC and DAC. Sophisticated

sample rate conversion for quality digital mixing.

• Sample Rates : 16-bit simultaneous record and playback at full bandwidth. 4KHz

to 48KHz sample rate both mono and stereo

• 128 Soft Voices Wavetable Synthesis

• Integrated FM Synthesiser

• 3D Spatialization

• Support Microsoft DirectSound and DirectSound 3D

• Audio Inputs / Outputs : Stereo input for line-in, CD-in, Aux-in and mono

microphone input plus stereo line output and speaker output.

• Output Power Amp (Optional) : 2 watts per channel

• MPU401 (UART mode) support game port for joysticks or external MIDI

• AC’97 Codec

• Compatibility : Full DOS games compatibility via PC/PCI, DDMA and

PCI Audio Accelerator

User’s Guide

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CrystalClear Legacy Support

• Full Duplex Operation and Advanced Power Management (PPMI)

• PC’97 and PC’98 Compliance

• Windows 95 & 98, NT 4.0 Drivers

3. INSTALLATION

J2 CD IN, Audio

1: Signal Input, Right
2: Ground
3: Ground
4: Signal Input. Left

J3 CD IN, Audio

1: Ground
2: Signal Input, Left
3: Ground
4: Channel Signal, Right

J4 VIDEO IN, Audio

1: Signal Input, Left
2: Ground
3: Ground
4: Signal Input, Right

J5 AUX IN, Audio

1: Signal Input, Left
2: Ground
3: Ground
4: Signal Input, Right

J6 PHONE/I & MONO/O, Audio

1: Signal Input, Phone
2: Ground
3: Ground
4: Signal Out, Mono

JP 2 & JP 3
Speaker Out, Line Out Selector

1-2: Line Out
2-3: Speaker Out