alc885-gr Realtek Semiconductor Corporation, alc885-gr Datasheet - Page 9

• Manufacturer Part Number: alc885-gr
• Description: 7.1+2 Channel High-performance Hda Codec With Content Protection
• Manufacturer: Realtek Semiconductor Corporation

ALC885 Series
Datasheet
1.
General Description
The ALC885 is a high-performance 7.1+2 Channel High Definition Audio Codec with advanced lossless
content protection technology that protects pre-recorded content while still allowing full-rate audio
enjoyment from DVD audio, Blu-ray DVD, or HD DVD discs.
The ALC885 provides ten DAC channels that simultaneously support 7.1 sound playback, plus 2
channels of independent stereo sound output (multiple streaming) through the front panel stereo outputs.
Three stereo ADCs are integrated and can support a microphone array with Acoustic Echo Cancellation
(AEC), Beam Forming (BF), and Noise Suppression (NS) technologies simultaneously.
All analog IO are input and output capable, and headphone amplifiers are also integrated at each analog
output. All analog IOs can be re-tasked according to user’s definitions, or automatically switched
depending on the connected device type.
Support for 16/20/24-bit S/PDIF input and output offers easy connection of PCs to high-quality consumer
electronic products such as digital decoders and speakers. The series incorporates Realtek proprietary
converter technology to achieve 106dB Signal-to-Noise ratio (SNR) playback quality and 101dB SNR
recording quality, and is designed for Windows Vista premium desktop and laptop systems.
The ALC885 supports host/soft audio from the Intel ICH series chipset, and also from any other HDA
compatible audio controller. With EAX/Direct Sound 3D/I3DL2/A3D compatibility, and excellent
software utilities like Karaoke mode, environment emulation, software equalizer, HRTF 3D positional
audio, and optional Dolby® Master Studio™, the ALC885 provides an excellent home entertainment
package and game experience for PC users.
7.1+2 Channel High-Performance HDA Codec
1
Rev. 1.1
With Content Protection